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I intend to buy a PHP source code from one company. Since i have plans to scale and improve the code afterwards it is important for me to know about software architecture. Is there some kind of a checklist or questions list before buying a source code that will help me to understand what to expect?

closed as off-topic by unor, Tom, ᔕᖺᘎᕊ, Steve Barnes, Izzy Feb 14 '17 at 22:31

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Not really in scope here but a few things to look for:

  1. The EXACT licence terms are you allowed to produce and sell your own products based on it, etc.
  2. The origin - you can hit big problems if it turns out you have been sold code that was, partly or fully, originally GPL or was someone elses code.
  3. Test Suite coverage - Should be 100%
  4. Portability & dependencies on specific versions of tools, OS, Libraries, etc.
  5. Coding Standards
  6. Documentation and commenting
  7. Mondularity & structure
  8. Maintenance & Support contract, if any.
  • Thank you, Steve! Nice list! – dFine Feb 2 '17 at 21:39
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    @dFine - Comes from having seen it go wrong too many times in various languages. That is why I tend to go for FOSS code if the licences can be worked out. – Steve Barnes Feb 3 '17 at 6:21

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