What Depot Does

Let’s start by jotting down an outline specification for the Depot application. We’ll look at the high-level use cases and sketch out the flow through the web pages. We’ll also try working out what data the application needs with the understanding that our initial guesses will likely be wrong.

Use cases

A use case is simply a statement about how some entity uses a system. Depot’s use cases are simple . We start off by identifying two different roles or actors: the buyer and the seller.

Depot’s use cases are simple (some would say tragically so). We start off by identifying two different roles or actors: the buyer and the seller.

• The buyer uses Depot to browse the products we have to sell, select some to purchase, and supply the information needed to create an order.

• The seller uses Depot to maintain a list of ...