12 lines
826 B
Markdown
12 lines
826 B
Markdown
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We write [user stories](approach/user-stories.md) with the client and then estimate complexity on our own, ideally two different developers independently come up with an estimate and then compare and discuss the reason for differences to get to a final number.
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We estimate complexity using the Fibonacci sequence because complexity grows exponentially. More info at http://www.yakyma.com/2012/05/why-progressive-estimation-scale-is-so.html
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We usually translate that complexity point into twice as many hours. For example, an issue with a complexity of 5 translates to 10 hours. This is based very roughly on our typical velocity.
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## Estimating migrations
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Historically, We estimate the complexity for migrating Drupal entities roughly based on the following formula:
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1 * # Entities + 2 * # Fields = Migration Complexity
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