25. Architecture and Software Product Lines
Coming together is a beginning. Keeping together is progress. Working together is success.
—Henry Ford
A software architecture represents a significant investment of time and effort, usually by senior talent. So it is natural to want to maximize the return on this investment by reusing an architecture across multiple systems.
There are many ways this happens in practice. The patterns we discussed in Chapter 13 are a big step in this direction; using a pattern is reusing a package of architectural decisions (albeit not a complete architecture). And strictly speaking, every time you make a change to a system, you are reusing its architecture (or whatever portion of its architecture you don’t have to ...
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