Sublime

The act of writing tests before production code often exposes areas in the software that ought to be decoupled.

If OCP is applied well, further changes of that kind are achieved by adding new code, not by changing old code that already works.

Alternatively, lose the notion of projects entirely and build incremental capabilities in a steady flow.

disagree. The program you see here is easy to understand and therefore easy to maintain.

remember that an agile developer does not apply those principles and patterns to a big, up-front design. Rather, they are applied from iteration to iteration in an attempt to keep the code, and the design it embodies, clean.

Documentation must be created, but it must be created prudently. The choice of what not to document is just as important as the choice of what to document. A complex communication protocol needs to be documented. A complex relational schema needs to be documented. A complex reusable framework needs to be documented. However, none of these things ne

To create comprehensive documentation

You need to explain the structure of some part of the code to someone else or to yourself.