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	<id>https://jak.mazovia.edu.pl/index.php?action=history&amp;feed=atom&amp;title=What_Actually_Drives_Software_Development_Costs</id>
	<title>What Actually Drives Software Development Costs - Historia wersji</title>
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	<updated>2026-10-24T03:30:18Z</updated>
	<subtitle>Historia wersji tej strony wiki</subtitle>
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	<entry>
		<id>https://jak.mazovia.edu.pl/index.php?title=What_Actually_Drives_Software_Development_Costs&amp;diff=1031781&amp;oldid=prev</id>
		<title>VeronicaAjo o 13:48, 11 paź 2026</title>
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		<updated>2026-10-11T13:48:27Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← poprzednia wersja&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Wersja z 13:48, 11 paź 2026&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Linia 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Linia 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;The dominant factor is &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;never &lt;/del&gt;technology — it is &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;almost always [https://webparadox.com/blog/how-to-hire-software-development-company/ &lt;/del&gt;how &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;to find right software development company] &lt;/del&gt;much is still undecided. Every open question in the &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;requirements &lt;/del&gt;is converted into &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;a buffer &lt;/del&gt;somewhere in the quote. A &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;vendor &lt;/del&gt;that cannot see the &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;exceptions and &lt;/del&gt;edge cases &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;has to &lt;/del&gt;assume a pessimistic case. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Spending &lt;/del&gt;a &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;week on a discovery phase often reduces &lt;/del&gt;the &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;overall figure &lt;/del&gt;far more than negotiating the rate.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Integrations &lt;/del&gt;remain &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;the next major multiplier&lt;/del&gt;. A &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;feature &lt;/del&gt;that &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;touches only your own &lt;/del&gt;data is &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;low risk&lt;/del&gt;; the same &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;feature connected &lt;/del&gt;to a &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;legacy ERP is not&lt;/del&gt;. The &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;unknown hides &lt;/del&gt;in the other system: &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;poor documentation&lt;/del&gt;, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;slow approval cycles&lt;/del&gt;, inconsistent data. Ask &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;any vendor &lt;/del&gt;to &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;list every external system&lt;/del&gt;, because that is where the numbers slip.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;Quality attributes can easily double the &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;number&lt;/del&gt;. An application used by a &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;small internal team costs far less than &lt;/del&gt;the same &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;functionality &lt;/del&gt;handling &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;public traffic&lt;/del&gt;. Compliance work, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;high availability&lt;/del&gt;, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;performance under load&lt;/del&gt;, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;data retention rules &lt;/del&gt;and &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;localisation &lt;/del&gt;add &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;weeks of work&lt;/del&gt;. Put them in the brief or &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;you can &lt;/del&gt;expect the estimate to move later.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;The &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;team you are quoted &lt;/del&gt;matters a great deal. An hourly rate says &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;almost nothing &lt;/del&gt;on its own: one senior developer at a higher rate &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;can be &lt;/del&gt;cheaper overall than two juniors who &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;require constant review&lt;/del&gt;. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Also ask which roles are billed&lt;/del&gt;: project management, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;quality assurance&lt;/del&gt;, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;infrastructure work &lt;/del&gt;and design are real work, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt; [https://webparadox.com/technologies/php/ enterprise php development] &lt;/del&gt;but they &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;must &lt;/del&gt;be &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;itemised&lt;/del&gt;.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;The &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;build price &lt;/del&gt;is &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;not the full cost of ownership&lt;/del&gt;. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Budget &lt;/del&gt;for hosting, paid APIs, logging and alerting and an ongoing support budget annually. A &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;useful planning figure says &lt;/del&gt;that &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;a live system &lt;/del&gt;needs a recurring percentage of &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;its &lt;/del&gt;original &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;build cost per &lt;/del&gt;year simply to stay current. Ignoring this &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;is &lt;/del&gt;the &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;classic mistake&lt;/del&gt;.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;The dominant factor is &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;not the &lt;/ins&gt;technology &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;stack &lt;/ins&gt;— it is how much is still undecided. Every open question in the &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;specification &lt;/ins&gt;is converted into &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;padding &lt;/ins&gt;somewhere in the quote. A &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;team &lt;/ins&gt;that cannot see the edge cases &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;will &lt;/ins&gt;assume a pessimistic case. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Investing &lt;/ins&gt;a &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;few days in requirements work can cut &lt;/ins&gt;the &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;final cost by &lt;/ins&gt;far more than negotiating the rate.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Third-party integrations &lt;/ins&gt;remain &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;another reliable source of cost&lt;/ins&gt;. A &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;form &lt;/ins&gt;that &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;saves &lt;/ins&gt;data is &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;easy to estimate&lt;/ins&gt;; the same &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;screen talking &lt;/ins&gt;to &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;an old accounting system is &lt;/ins&gt;a &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;different problem&lt;/ins&gt;. The &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;effort sits &lt;/ins&gt;in the other system: &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;rate limits and sandbox access&lt;/ins&gt;, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;long certification processes&lt;/ins&gt;, inconsistent data. Ask &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;each bidder &lt;/ins&gt;to &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;break integrations out as separate items&lt;/ins&gt;, because that is where the numbers slip.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;Quality attributes can easily double the &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;budget&lt;/ins&gt;. An application used by &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;twenty people is &lt;/ins&gt;a &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;very different build from &lt;/ins&gt;the same &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;idea &lt;/ins&gt;handling &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;thousands of external customers&lt;/ins&gt;. Compliance work, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;uptime targets&lt;/ins&gt;, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;scalability&lt;/ins&gt;, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;traceability &lt;/ins&gt;and &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;multi-language support all &lt;/ins&gt;add &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;real engineering time&lt;/ins&gt;. Put them in the brief or expect the estimate to move later.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;The &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;mix of people behind the number &lt;/ins&gt;matters a great deal. An hourly rate says &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;little &lt;/ins&gt;on its own: one senior developer at a higher rate &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;is often &lt;/ins&gt;cheaper overall than two juniors who &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;need supervision and rework&lt;/ins&gt;. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Check too what else appears on the invoice&lt;/ins&gt;: project management, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;testing&lt;/ins&gt;, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;DevOps &lt;/ins&gt;and design are real work, but they &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;should &lt;/ins&gt;be &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;named rather than hidden inside a blended rate&lt;/ins&gt;.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;The &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;number in the proposal &lt;/ins&gt;is &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;never what you will actually spend&lt;/ins&gt;. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Plan &lt;/ins&gt;for hosting, paid APIs, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt; [https://webparadox.com/blog/mvp-mistakes/ startup mvp development] &lt;/ins&gt;logging and alerting and an ongoing support budget annually. A &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;common working assumption is &lt;/ins&gt;that &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[https://webparadox.com/blog/ custom software development] in active use &lt;/ins&gt;needs a recurring percentage of &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;the &lt;/ins&gt;original &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;budget every &lt;/ins&gt;year simply to stay current. Ignoring this &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;has always been &lt;/ins&gt;the &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;most frequent planning error&lt;/ins&gt;.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>VeronicaAjo</name></author>
	</entry>
	<entry>
		<id>https://jak.mazovia.edu.pl/index.php?title=What_Actually_Drives_Software_Development_Costs&amp;diff=593533&amp;oldid=prev</id>
		<title>JamalSimone o 03:37, 14 wrz 2026</title>
		<link rel="alternate" type="text/html" href="https://jak.mazovia.edu.pl/index.php?title=What_Actually_Drives_Software_Development_Costs&amp;diff=593533&amp;oldid=prev"/>
		<updated>2026-09-14T03:37:30Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← poprzednia wersja&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Wersja z 03:37, 14 wrz 2026&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Linia 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Linia 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;The &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;biggest cost driver &lt;/del&gt;is &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;not &lt;/del&gt;technology — it is almost always &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;uncertainty&lt;/del&gt;. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Each unanswered &lt;/del&gt;question in the requirements &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;becomes padding inside &lt;/del&gt;the &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;number you receive&lt;/del&gt;. A vendor that cannot see &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;what happens on &lt;/del&gt;the &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;unhappy path must &lt;/del&gt;assume &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;the worst&lt;/del&gt;. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Putting two weeks into &lt;/del&gt;a discovery phase &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;can cut &lt;/del&gt;the overall figure &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;much &lt;/del&gt;more than &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;haggling over hourly rates&lt;/del&gt;.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Third-party integrations tend to be &lt;/del&gt;the next major &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt; [https://webparadox.com/hire/react-native-developers/ hire react native development services] &lt;/del&gt;multiplier. A &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;form &lt;/del&gt;that &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;saves &lt;/del&gt;data is &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;easy to estimate&lt;/del&gt;; the same &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;functionality &lt;/del&gt;connected to &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;an old accounting system &lt;/del&gt;is &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;a different problem&lt;/del&gt;. The &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;effort &lt;/del&gt;hides in the other system: poor documentation, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;long certification processes&lt;/del&gt;, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;fields that mean something different on each side&lt;/del&gt;. Ask &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;each bidder &lt;/del&gt;to list every external system, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt; [https://webparadox.com/technologies/docker/ devops services company] as &lt;/del&gt;that is where the numbers slip.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;The requirements nobody writes down &lt;/del&gt;can easily double the number. An &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;internal tool &lt;/del&gt;used by &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;twenty people is &lt;/del&gt;a &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;very different build from &lt;/del&gt;the same &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;idea serving thousands of external customers&lt;/del&gt;. Compliance work, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;uptime targets&lt;/del&gt;, load &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;handling&lt;/del&gt;, data retention rules and &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;multi-language support &lt;/del&gt;add &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;measurable effort&lt;/del&gt;. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;State &lt;/del&gt;them &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;early &lt;/del&gt;or &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;else &lt;/del&gt;expect &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;them &lt;/del&gt;to &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;arrive &lt;/del&gt;later &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;as change requests&lt;/del&gt;.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;The team you are quoted &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;changes the arithmetic&lt;/del&gt;. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;A day &lt;/del&gt;rate says almost nothing on its own: &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;a &lt;/del&gt;senior &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;engineer &lt;/del&gt;at a &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;premium &lt;/del&gt;rate &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;frequently turns out to &lt;/del&gt;be cheaper &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;per delivered feature &lt;/del&gt;than two &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;inexperienced developers &lt;/del&gt;who &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;need heavy code &lt;/del&gt;review. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Ask as well [https://webparadox.com/compare/vuejs-vs-react/ &lt;/del&gt;which &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;is better vue or react] &lt;/del&gt;roles are billed: project management, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;QA&lt;/del&gt;, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;release engineering &lt;/del&gt;and design are &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;legitimate costs&lt;/del&gt;, but &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;these should &lt;/del&gt;be &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;named rather than hidden inside a blended rate&lt;/del&gt;.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;The build price is &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;rarely what you will actually spend&lt;/del&gt;. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Plan &lt;/del&gt;for &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;cloud costs&lt;/del&gt;, paid APIs, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;monitoring &lt;/del&gt;and an ongoing support budget &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;each year&lt;/del&gt;. A &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;reasonable rule of thumb holds &lt;/del&gt;that &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;any production &lt;/del&gt;system needs a recurring percentage of &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;the initial investment every &lt;/del&gt;year simply to stay current. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Treating the launch as the finish line remains &lt;/del&gt;the classic mistake.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;The &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;dominant factor &lt;/ins&gt;is &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;never &lt;/ins&gt;technology — it is almost always &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[https://webparadox.com/blog/how-to-hire-software-development-company/ how to find right software development company] much is still undecided&lt;/ins&gt;. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Every open &lt;/ins&gt;question in the requirements &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;is converted into a buffer somewhere in &lt;/ins&gt;the &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;quote&lt;/ins&gt;. A vendor that cannot see the &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;exceptions and edge cases has to &lt;/ins&gt;assume &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;a pessimistic case&lt;/ins&gt;. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Spending a week on &lt;/ins&gt;a discovery phase &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;often reduces &lt;/ins&gt;the overall figure &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;far &lt;/ins&gt;more than &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;negotiating the rate&lt;/ins&gt;.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Integrations remain &lt;/ins&gt;the next major multiplier. A &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;feature &lt;/ins&gt;that &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;touches only your own &lt;/ins&gt;data is &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;low risk&lt;/ins&gt;; the same &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;feature &lt;/ins&gt;connected to &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;a legacy ERP &lt;/ins&gt;is &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;not&lt;/ins&gt;. The &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;unknown &lt;/ins&gt;hides in the other system: poor documentation, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;slow approval cycles&lt;/ins&gt;, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;inconsistent data&lt;/ins&gt;. Ask &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;any vendor &lt;/ins&gt;to list every external system, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;because &lt;/ins&gt;that is where the numbers slip.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Quality attributes &lt;/ins&gt;can easily double the number. An &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;application &lt;/ins&gt;used by a &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;small internal team costs far less than &lt;/ins&gt;the same &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;functionality handling public traffic&lt;/ins&gt;. Compliance work, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;high availability&lt;/ins&gt;, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;performance under &lt;/ins&gt;load, data retention rules and &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;localisation &lt;/ins&gt;add &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;weeks of work&lt;/ins&gt;. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Put &lt;/ins&gt;them &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;in the brief &lt;/ins&gt;or &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;you can &lt;/ins&gt;expect &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;the estimate &lt;/ins&gt;to &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;move &lt;/ins&gt;later.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;The team you are quoted &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;matters a great deal&lt;/ins&gt;. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;An hourly &lt;/ins&gt;rate says almost nothing on its own: &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;one &lt;/ins&gt;senior &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;developer &lt;/ins&gt;at a &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;higher &lt;/ins&gt;rate &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;can &lt;/ins&gt;be cheaper &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;overall &lt;/ins&gt;than two &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;juniors &lt;/ins&gt;who &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;require constant &lt;/ins&gt;review. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Also ask &lt;/ins&gt;which roles are billed: project management, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;quality assurance&lt;/ins&gt;, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;infrastructure work &lt;/ins&gt;and design are &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;real work&lt;/ins&gt;, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt; [https://webparadox.com/technologies/php/ enterprise php development] &lt;/ins&gt;but &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;they must &lt;/ins&gt;be &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;itemised&lt;/ins&gt;.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;The build price is &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;not the full cost of ownership&lt;/ins&gt;. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Budget &lt;/ins&gt;for &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;hosting&lt;/ins&gt;, paid APIs, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;logging and alerting &lt;/ins&gt;and an ongoing support budget &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;annually&lt;/ins&gt;. A &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;useful planning figure says &lt;/ins&gt;that &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;a live &lt;/ins&gt;system needs a recurring percentage of &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;its original build cost per &lt;/ins&gt;year simply to stay current. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Ignoring this is &lt;/ins&gt;the classic mistake.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>JamalSimone</name></author>
	</entry>
	<entry>
		<id>https://jak.mazovia.edu.pl/index.php?title=What_Actually_Drives_Software_Development_Costs&amp;diff=403111&amp;oldid=prev</id>
		<title>JoieK31064 o 14:04, 6 wrz 2026</title>
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		<updated>2026-09-06T14:04:08Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← poprzednia wersja&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Wersja z 14:04, 6 wrz 2026&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Linia 1:&lt;/td&gt;
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&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;The &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;dominant factor &lt;/del&gt;is not &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;the choice of framework &lt;/del&gt;— it is almost always &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;unclear scope&lt;/del&gt;. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Every open &lt;/del&gt;question in the requirements becomes &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;a contingency in &lt;/del&gt;the &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;estimate&lt;/del&gt;. A &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;supplier &lt;/del&gt;that cannot see the &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;edge cases will &lt;/del&gt;assume the worst. Putting two weeks into a discovery phase can cut the &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;total far &lt;/del&gt;more than &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;any rate negotiation&lt;/del&gt;.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Connections &lt;/del&gt;to &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;other systems remain another reliable source of cost&lt;/del&gt;. A &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;screen &lt;/del&gt;that &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;writes &lt;/del&gt;to &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;your own database is low risk&lt;/del&gt;; the same &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;screen wired into a payment provider and a CRM &lt;/del&gt;is a different problem. The &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;unknown &lt;/del&gt;hides in the other system: &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;rate limits and sandbox access&lt;/del&gt;, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;waiting on someone else&#039;s team&lt;/del&gt;, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;data &lt;/del&gt;that &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;does not match your model&lt;/del&gt;. Ask each bidder to list every external system, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;since this &lt;/del&gt;is the &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;usual source of overruns&lt;/del&gt;.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;The requirements nobody writes down can easily double the &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;estimate&lt;/del&gt;. An &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;application &lt;/del&gt;used by a &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;handful of staff costs far less than &lt;/del&gt;the same idea serving &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;public traffic&lt;/del&gt;. Compliance work, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;high availability&lt;/del&gt;, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;performance under &lt;/del&gt;load, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;traceability &lt;/del&gt;and &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;accessibility each &lt;/del&gt;add measurable effort. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Write &lt;/del&gt;them &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;down at the start &lt;/del&gt;or expect them &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;priced &lt;/del&gt;as &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;extras&lt;/del&gt;.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Who actually does &lt;/del&gt;the &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;work matters&lt;/del&gt;. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;An hourly &lt;/del&gt;rate &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;tells you very little &lt;/del&gt;on its own: a senior engineer at &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;twice the price &lt;/del&gt;frequently turns out to be cheaper per delivered feature than &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;a pair of junior &lt;/del&gt;developers who need &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;constant &lt;/del&gt;review. Ask as well &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;which roles are billed: delivery management, QA,  &lt;/del&gt;[https://webparadox.com/&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;services&lt;/del&gt;/&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;aso&lt;/del&gt;/ &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;top aso agencies&lt;/del&gt;] &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;infrastructure work &lt;/del&gt;and &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;UX &lt;/del&gt;design are &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;real work&lt;/del&gt;, but these should be named rather than hidden inside a blended rate.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;The &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;number [https://webparadox.com/compare/outsourcing-vs-inhouse/ in house team vs outsourcing costs] the proposal &lt;/del&gt;is &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;never &lt;/del&gt;what you will actually spend. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Budget &lt;/del&gt;for &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;infrastructure&lt;/del&gt;, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;third-party licences&lt;/del&gt;, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;observability &lt;/del&gt;and &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;a change &lt;/del&gt;budget &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[https://webparadox.com/hire/flutter-developers/ flutter developer for hire] every &lt;/del&gt;year &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;the software runs&lt;/del&gt;. A &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;useful planning figure &lt;/del&gt;holds that &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[https://webparadox.com/industries/ software development for healthcare] in active use requires &lt;/del&gt;a &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;noticeable fraction &lt;/del&gt;of the initial investment every year &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;for updates, security patches and small improvements&lt;/del&gt;. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Leaving it out of &lt;/del&gt;the &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;budget &lt;/del&gt;remains the &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;most frequent planning error&lt;/del&gt;.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;The &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;biggest cost driver &lt;/ins&gt;is not &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;technology &lt;/ins&gt;— it is almost always &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;uncertainty&lt;/ins&gt;. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Each unanswered &lt;/ins&gt;question in the requirements becomes &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;padding inside &lt;/ins&gt;the &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;number you receive&lt;/ins&gt;. A &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;vendor &lt;/ins&gt;that cannot see &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;what happens on &lt;/ins&gt;the &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;unhappy path must &lt;/ins&gt;assume the worst. Putting two weeks into a discovery phase can cut the &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;overall figure much &lt;/ins&gt;more than &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;haggling over hourly rates&lt;/ins&gt;.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Third-party integrations tend &lt;/ins&gt;to &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;be the next major  [https://webparadox.com/hire/react-native-developers/ hire react native development services] multiplier&lt;/ins&gt;. A &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;form &lt;/ins&gt;that &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;saves data is easy &lt;/ins&gt;to &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;estimate&lt;/ins&gt;; the same &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;functionality connected to an old accounting system &lt;/ins&gt;is a different problem. The &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;effort &lt;/ins&gt;hides in the other system: &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;poor documentation&lt;/ins&gt;, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;long certification processes&lt;/ins&gt;, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;fields &lt;/ins&gt;that &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;mean something different on each side&lt;/ins&gt;. Ask each bidder to list every external system, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt; [https://webparadox.com/technologies/docker/ devops services company] as that &lt;/ins&gt;is &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;where &lt;/ins&gt;the &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;numbers slip&lt;/ins&gt;.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;The requirements nobody writes down can easily double the &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;number&lt;/ins&gt;. An &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;internal tool &lt;/ins&gt;used by &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;twenty people is &lt;/ins&gt;a &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;very different build from &lt;/ins&gt;the same idea serving &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;thousands of external customers&lt;/ins&gt;. Compliance work, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;uptime targets&lt;/ins&gt;, load &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;handling&lt;/ins&gt;, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;data retention rules &lt;/ins&gt;and &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;multi-language support &lt;/ins&gt;add measurable effort. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;State &lt;/ins&gt;them &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;early &lt;/ins&gt;or &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;else &lt;/ins&gt;expect them &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;to arrive later &lt;/ins&gt;as &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;change requests&lt;/ins&gt;.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;The team you are quoted changes &lt;/ins&gt;the &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;arithmetic&lt;/ins&gt;. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;A day &lt;/ins&gt;rate &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;says almost nothing &lt;/ins&gt;on its own: a senior engineer at &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;a premium rate &lt;/ins&gt;frequently turns out to be cheaper per delivered feature than &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;two inexperienced &lt;/ins&gt;developers who need &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;heavy code &lt;/ins&gt;review. Ask as well [https://webparadox.com/&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;compare&lt;/ins&gt;/&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;vuejs-vs-react&lt;/ins&gt;/ &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;which is better vue or react&lt;/ins&gt;] &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;roles are billed: project management, QA, release engineering &lt;/ins&gt;and design are &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;legitimate costs&lt;/ins&gt;, but these should be named rather than hidden inside a blended rate.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;The &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;build price &lt;/ins&gt;is &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;rarely &lt;/ins&gt;what you will actually spend. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Plan &lt;/ins&gt;for &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;cloud costs&lt;/ins&gt;, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;paid APIs&lt;/ins&gt;, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;monitoring &lt;/ins&gt;and &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;an ongoing support &lt;/ins&gt;budget &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;each &lt;/ins&gt;year. A &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;reasonable rule of thumb &lt;/ins&gt;holds that &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;any production system needs &lt;/ins&gt;a &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;recurring percentage &lt;/ins&gt;of the initial investment every year &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;simply to stay current&lt;/ins&gt;. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Treating the launch as &lt;/ins&gt;the &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;finish line &lt;/ins&gt;remains the &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;classic mistake&lt;/ins&gt;.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>JoieK31064</name></author>
	</entry>
	<entry>
		<id>https://jak.mazovia.edu.pl/index.php?title=What_Actually_Drives_Software_Development_Costs&amp;diff=304497&amp;oldid=prev</id>
		<title>AuroraSavage o 17:10, 1 wrz 2026</title>
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		<updated>2026-09-01T17:10:08Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← poprzednia wersja&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Wersja z 17:10, 1 wrz 2026&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Linia 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Linia 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;The dominant factor is &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;rarely &lt;/del&gt;the &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;technology stack &lt;/del&gt;— it is unclear scope. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Each unanswered &lt;/del&gt;question in the requirements &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;is converted into &lt;/del&gt;a contingency &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;inside &lt;/del&gt;the &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;number you receive&lt;/del&gt;. A supplier that cannot see &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;what happens on &lt;/del&gt;the &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;unhappy path must &lt;/del&gt;assume &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;a pessimistic case&lt;/del&gt;. Putting two weeks into a &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;proper &lt;/del&gt;discovery can cut the &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;final cost by &lt;/del&gt;far more than any rate negotiation.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Integrations are &lt;/del&gt;another reliable source of cost. A screen that writes to your own database is low risk; the same screen &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;talking to &lt;/del&gt;a payment provider and a CRM is a different problem. The &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;effort lives &lt;/del&gt;in the &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;third party&lt;/del&gt;: &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;poor documentation&lt;/del&gt;, waiting on someone else&#039;s team, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;inconsistent &lt;/del&gt;data. Ask &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;the estimator &lt;/del&gt;to &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;price integrations separately&lt;/del&gt;, since &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;that &lt;/del&gt;is &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;where &lt;/del&gt;the &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;numbers slip&lt;/del&gt;.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Non-functional &lt;/del&gt;requirements can easily double the estimate. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;A tool &lt;/del&gt;used by &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;twenty people has almost nothing in common with &lt;/del&gt;the same &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;functionality handling thousands of external customers&lt;/del&gt;. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Security reviews&lt;/del&gt;, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt; [https://webparadox.com/compare/vuejs-vs-angular/ vuejs vs angularjs] &lt;/del&gt;availability &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;guarantees&lt;/del&gt;, load &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;handling&lt;/del&gt;, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;audit logging &lt;/del&gt;and accessibility &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;all &lt;/del&gt;add measurable effort. Write them down at the start or &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;else &lt;/del&gt;expect &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;the estimate to move later&lt;/del&gt;.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;The team you are quoted changes &lt;/del&gt;the &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;arithmetic&lt;/del&gt;. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;A &lt;/del&gt;rate &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;card says almost nothing &lt;/del&gt;on its own: a senior &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt; [https://webparadox.com/technologies/vuejs/ vue js company] &lt;/del&gt;engineer at twice the price frequently turns out to be cheaper per delivered feature than a pair of junior developers who &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;require supervision [https://webparadox&lt;/del&gt;.&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;com/compare/fixed-price-vs-time-and-materials/ time and materials contract] rework. Check too who else is &lt;/del&gt;billed: &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;coordination&lt;/del&gt;, QA,  [https://webparadox.com/&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;technologies&lt;/del&gt;/&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;docker&lt;/del&gt;/ &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;docker web development company&lt;/del&gt;] infrastructure work and UX design are &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;legitimate costs&lt;/del&gt;, but these should be named rather than hidden inside a blended rate.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;The &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;quoted figure &lt;/del&gt;is &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;rarely the total cost&lt;/del&gt;. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Expect &lt;/del&gt;infrastructure, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;paid APIs&lt;/del&gt;, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;monitoring &lt;/del&gt;and a change budget &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;annually&lt;/del&gt;. A useful planning figure &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;is &lt;/del&gt;that &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;any production system &lt;/del&gt;requires a noticeable fraction of &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;its original build cost &lt;/del&gt;every year for updates, security patches and small improvements. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Treating &lt;/del&gt;the &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;launch as the finish line is &lt;/del&gt;the most frequent planning error.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;The dominant factor is &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;not &lt;/ins&gt;the &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;choice of framework &lt;/ins&gt;— it is &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;almost always &lt;/ins&gt;unclear scope. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Every open &lt;/ins&gt;question in the requirements &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;becomes &lt;/ins&gt;a contingency &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;in &lt;/ins&gt;the &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;estimate&lt;/ins&gt;. A supplier that cannot see the &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;edge cases will &lt;/ins&gt;assume &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;the worst&lt;/ins&gt;. Putting two weeks into a discovery &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;phase &lt;/ins&gt;can cut the &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;total &lt;/ins&gt;far more than any rate negotiation.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Connections to other systems remain &lt;/ins&gt;another reliable source of cost. A screen that writes to your own database is low risk; the same screen &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;wired into &lt;/ins&gt;a payment provider and a CRM is a different problem. The &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;unknown hides &lt;/ins&gt;in the &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;other system&lt;/ins&gt;: &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;rate limits and sandbox access&lt;/ins&gt;, waiting on someone else&#039;s team, data &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;that does not match your model&lt;/ins&gt;. Ask &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;each bidder &lt;/ins&gt;to &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;list every external system&lt;/ins&gt;, since &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;this &lt;/ins&gt;is the &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;usual source of overruns&lt;/ins&gt;.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;The &lt;/ins&gt;requirements &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;nobody writes down &lt;/ins&gt;can easily double the estimate. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;An application &lt;/ins&gt;used by &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;a handful of staff costs far less than &lt;/ins&gt;the same &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;idea serving public traffic&lt;/ins&gt;. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Compliance work&lt;/ins&gt;, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;high &lt;/ins&gt;availability, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;performance under &lt;/ins&gt;load, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;traceability &lt;/ins&gt;and accessibility &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;each &lt;/ins&gt;add measurable effort. Write them down at the start or expect &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;them priced as extras&lt;/ins&gt;.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Who actually does &lt;/ins&gt;the &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;work matters&lt;/ins&gt;. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;An hourly &lt;/ins&gt;rate &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;tells you very little &lt;/ins&gt;on its own: a senior engineer at twice the price frequently turns out to be cheaper per delivered feature than a pair of junior developers who &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;need constant review&lt;/ins&gt;. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Ask as well which roles are &lt;/ins&gt;billed: &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;delivery management&lt;/ins&gt;, QA,  [https://webparadox.com/&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;services&lt;/ins&gt;/&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;aso&lt;/ins&gt;/ &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;top aso agencies&lt;/ins&gt;] infrastructure work and UX design are &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;real work&lt;/ins&gt;, but these should be named rather than hidden inside a blended rate.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;The &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;number [https://webparadox.com/compare/outsourcing-vs-inhouse/ in house team vs outsourcing costs] the proposal &lt;/ins&gt;is &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;never what you will actually spend&lt;/ins&gt;. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Budget for &lt;/ins&gt;infrastructure, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;third-party licences&lt;/ins&gt;, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;observability &lt;/ins&gt;and a change budget &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[https://webparadox.com/hire/flutter-developers/ flutter developer for hire] every year the software runs&lt;/ins&gt;. A useful planning figure &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;holds &lt;/ins&gt;that &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[https://webparadox.com/industries/ software development for healthcare] in active use &lt;/ins&gt;requires a noticeable fraction of &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;the initial investment &lt;/ins&gt;every year for updates, security patches and small improvements. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Leaving it out of &lt;/ins&gt;the &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;budget remains &lt;/ins&gt;the most frequent planning error.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>AuroraSavage</name></author>
	</entry>
	<entry>
		<id>https://jak.mazovia.edu.pl/index.php?title=What_Actually_Drives_Software_Development_Costs&amp;diff=304159&amp;oldid=prev</id>
		<title>Syreeta21P: Utworzono nową stronę &quot;&lt;br&gt;&lt;br&gt;&lt;br&gt;The dominant factor is rarely the technology stack — it is unclear scope. Each unanswered question in the requirements is converted into a contingency inside the number you receive. A supplier that cannot see what happens on the unhappy path must assume a pessimistic case. Putting two weeks into a proper discovery can cut the final cost by far more than any rate negotiation.&lt;br&gt;&lt;br&gt;&lt;br&gt;&lt;br&gt;Integrations are another reliable source of cost. A screen tha…&quot;</title>
		<link rel="alternate" type="text/html" href="https://jak.mazovia.edu.pl/index.php?title=What_Actually_Drives_Software_Development_Costs&amp;diff=304159&amp;oldid=prev"/>
		<updated>2026-09-01T16:52:37Z</updated>

		<summary type="html">&lt;p&gt;Utworzono nową stronę &amp;quot;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;The dominant factor is rarely the technology stack — it is unclear scope. Each unanswered question in the requirements is converted into a contingency inside the number you receive. A supplier that cannot see what happens on the unhappy path must assume a pessimistic case. Putting two weeks into a proper discovery can cut the final cost by far more than any rate negotiation.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;Integrations are another reliable source of cost. A screen tha…&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;Nowa strona&lt;/b&gt;&lt;/p&gt;&lt;div&gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;The dominant factor is rarely the technology stack — it is unclear scope. Each unanswered question in the requirements is converted into a contingency inside the number you receive. A supplier that cannot see what happens on the unhappy path must assume a pessimistic case. Putting two weeks into a proper discovery can cut the final cost by far more than any rate negotiation.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;Integrations are another reliable source of cost. A screen that writes to your own database is low risk; the same screen talking to a payment provider and a CRM is a different problem. The effort lives in the third party: poor documentation, waiting on someone else&amp;#039;s team, inconsistent data. Ask the estimator to price integrations separately, since that is where the numbers slip.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;Non-functional requirements can easily double the estimate. A tool used by twenty people has almost nothing in common with the same functionality handling thousands of external customers. Security reviews,  [https://webparadox.com/compare/vuejs-vs-angular/ vuejs vs angularjs] availability guarantees, load handling, audit logging and accessibility all add measurable effort. Write them down at the start or else expect the estimate to move later.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;The team you are quoted changes the arithmetic. A rate card says almost nothing on its own: a senior  [https://webparadox.com/technologies/vuejs/ vue js company] engineer at twice the price frequently turns out to be cheaper per delivered feature than a pair of junior developers who require supervision [https://webparadox.com/compare/fixed-price-vs-time-and-materials/ time and materials contract] rework. Check too who else is billed: coordination, QA,  [https://webparadox.com/technologies/docker/ docker web development company] infrastructure work and UX design are legitimate costs, but these should be named rather than hidden inside a blended rate.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;The quoted figure is rarely the total cost. Expect infrastructure, paid APIs, monitoring and a change budget annually. A useful planning figure is that any production system requires a noticeable fraction of its original build cost every year for updates, security patches and small improvements. Treating the launch as the finish line is the most frequent planning error.&amp;lt;br&amp;gt;&amp;lt;br&amp;gt;&lt;/div&gt;</summary>
		<author><name>Syreeta21P</name></author>
	</entry>
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