Strategy for large scale refactoring

Question

I\'m currently working in a piece of code where both logic and data access are present in the GUI classes. Obviously, I would like to improve on this situation.

The

Answer 1

Big bang / Big re-design / rewriting the SW ... or whatever other names will not work for a living SW. The reasons are:

• You still need to support the existing SW with (probably) the same resources you have.

• You probably do not have the requirements for rewriting. Your old code has all the requirements embedded inside it. None of your engineers know all the SW domains and all the requirements.

• Rewriting will take time. At the end of this time you will find that the existing SW has changed to support things that were required during this time. your new SW actually split from the original and merge will be needed (which will also take time).