I'm writing some documentation in a project in a tool. In this tool of mine, and write in specific area, I have here use Case, Business Rule, N-Diagram Types, and Functionality and Functional Requirements.

So I got me wondering, Are there differences between Functionality and Functional Requirements?

In my vision, a Functionality a implementation of a Functional Requirement, is it correct? What other differences one can find between them?

closed as too broad by gnat, user40980, World Engineer Apr 17 '14 at 23:36

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  • As far as I know, Functionality and Functional Requirement are synonyms in this context. – Philipp Jan 9 '13 at 19:42
  • Here's clarification based on my deduction on my way to work this morning; I believe things need to BE functional. ... things need to HAVE funtionality . Let me know if you disagree. – user127222 Apr 17 '14 at 12:38

Functionality is what a program does.

Functional requirements are what you want the program to do.

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