1 00:00:00,150 --> 00:00:02,350 And the correct answer, in this case it's only one, 2 00:00:02,350 --> 00:00:04,720 is that a use case model is a set of use 3 00:00:04,720 --> 00:00:07,390 cases. So a use case model is simply a collection of 4 00:00:07,390 --> 00:00:10,790 use cases that represent different pieces of functionality for the system.