Defining design principles

We need to choose a set of principles when we design microservices; each of them will have their own advantage that will be reviewed later on in this chapter, but defining them will also allow us to have a consistent approach for different kinds of problems, and will help others understand our architecture.

The key principles that we are going to define are:

• Modelled around business capabilities
• Loosely couple
• Single responsibility
• Hiding implementation
• Isolation
• Independently deployable
• Build for failure
• Scalability
• Automation