An increasingly common buzzword in cloud computing is microservices. Like a lot of things associated with cloud technologies, a precise definition is difficult to find — and it can mean a lot of things to a lot of different people, depending on the context. Since this is a blog devoted to middleware issues, I want to define microservices within the context of that middle layer in computing, for application development.
Microservices is an architectural approach for a software system. Meaning, it defines how individual services fit together and how those services are constructed (like, general constraints or best practices). What sets microservices apart from other architectural approaches is that it treats each service as a discrete and independent part of the architecture. That means that services themselves (within that system) have very clear definitions:
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