The goal of architecture is to provide the best structure to fulfill all functional and non-functional requirements, and to achieve the best results in terms of customer satisfaction with a bit of overhead to, we have to manage any future need the application may have during the release.

Decisions about selecting software architecture are about performance. An important distinction is between decisions that affect the whole software and decisions that can be made as optimization or tuning.

There is a performance architecture that focuses on the performance concerns that always persist as time changes, and an optimization time, when performance concerns fit the underlying system and its configuration (OS version, middleware version, .NET version, the database version, and so on). After a system change, the architectural vision should not change, whereas the optimization against the new system must be made to fit the requirements. When dealing with software...