Software Architect's Handbook

Implementing changes

Profiling the application and analyzing the results are necessary steps prior to implementing any changes to improve performance because we do not want to make changes unless we know that it will be worth it. Once those steps are complete, though, we are ready for the development team to actually implement the changes based on the results of the previous steps.

The analysis may identify multiple areas that need improvement. Software architects should consider implementing one set of changes at a time, so as not to mix results and make it more difficult to recognize new performance issues that may have been introduced. When selecting which set of changes to implement for a particular iteration, the most important bottleneck ...