Following a consistent coding standard helps improve the quality of the overall software system. The key to a good coding standard is consistency. This consistency needs to be found within the standard itself (in other words, you need to make sure that guidelines don’t contradict one another) but also within the source code that uses the standard. Completed source code should reflect a harmonized style, as if a single developer wrote the code in one session.
At NeXt group we started to define the Coding Guidelines for the first software projects.