Chapter 4. Logical Components: The Building Blocks
Ready to start creating an architecture? It’s not as easy as it sounds—and if you don’t do it correctly, your software system could come crumbling to the ground, just like a poorly designed skyscraper or bridge.
In this chapter we’ll show you several approaches for identifying and creating logical components, the functional building blocks of a system that describe how its pieces all fit together. Using the techniques described in this chapter will help you to create a solid architecture—a foundation upon which you can build a successful software system.
Put on your hard hat and gloves, get your tools ready, and let’s get started.
Logical components revisited
Logical components are one of the dimensions of software architecture. They are the functional building blocks of a system that make up what is known as the problem domain. In Chapter 1 you learned a bit about them, and in this chapter we’ll dive deep into what logical components are and how to create them.
Remember that, in most programming languages, logical components are represented through the directory structure of your source code repository. For example, source ...
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