Use Case Model. They enable you to visualize the different types of roles in a system and how those roles interact with the system. Once you define your use cases and actors just go into the reporting section and click on the use case model report and that s it.
And the use case that performs the actions triggered by the event. As such the use case model defines the user s objective the interactions between the system and the user and the system s behavior required to meet these objectives. This definition defines what a use case model is primarily made up of actors and use cases.
A use case model is a model of how different types of users interact with the system to solve a problem.
A single use case diagram captures a particular functionality of a system. The use case model is defined as a model which is used to show how users interact with the system in order to solve a problem. Use cases are a technique for capturing modelling and specifying the requirements of a system. A use case always describes three things.