![]() The system will respond with confirmation of the order and a tracking number that the user can use to check on order status in the future. The user will provide payment and shipping information. Use Case Description: After the user has selected items to purchase and then order the items. This quick use case definition allows for agile development of use cases. ![]() The next step is to define the use case at a low level of detail. The first step in defining a use case is to define the name, using the verb-noun naming convention. This use case example shows how to describe the steps that demonstrate all interactions with the system. The system also interacts with two external systems. ![]() The user interacts with the main system that we are describing. ![]() Here’s an example of a use case that has some system complexity. ![]()
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