Designing Elixir Systems With OTP

Organize Core Functions by Purpose

Recall our initial data architecture. We have Quizzes made up of Templates and Questions. Users answer questions with Responses. We designed our data by putting structs inside empty modules. That design will serve as a useful foundation of our core, as shown in the figure.

Now, we’ll slowly start to fill those modules up with functions. It’s time to build out the first few modules for our Quiz component.

Let’s look first at three pieces of our Mastery core: the Response, Question, and Template. Remember, each of these is a module, and also the name of the struct that lives inside the module. We will fill each ...