"...you should code for functionality and maintainability first" - Limbic~Region

Dear Masters,

From the very insightful discussions in CB, I had with L~R and others yesterday,
I have couple of unsatisfied questions to myself. Since I'm fairly new in area of software development.

• How can I tell if my Perl code (or others) is 'maintainable' and have good functionality?
• Once I know that, what are the points I have to pay attention to, as to
  improve the maintainability and functionality of my code.

Thus, I turn to you my brother monks for light?

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