Search⌘ K
AI Features

Summary: Building Our Project in Layers

Explore the layered approach to building Elixir projects by structuring data types, functions, and tests internally while managing boundaries, lifecycles, and workers externally. Understand how these elements work together within OTP to create maintainable and scalable applications.

Layers

We’ve addressed all of the major concepts in our mental framework. We can remember them all with the sentence:

Do Fun Things with Big, Loud Worker-bees.

The sentence is a mnemonic for data, functions, tests, boundaries, lifecycle, and workers.

We know not every program needs every one of these layers. For example, using all of these layers to create a couple of temperature functions is overkill. However, even though ...