6. Use Cases
âą Depiction of a systemâs behavior or
functionality under various conditions as the
system responds to requests from users
âą Full functioning for a specific business purpose
11. What is a Boundary?
âą A boundary is the dividing line between the
system and its environment.
âą Use cases are within the boundary.
âą Actors are outside of the boundary.
14. What is a Connection?
âą A connection is an association between an
actor and a use case.
âą Depicts a usage relationship
âą Connection does not indicate data flow
16. What is an <<include>> Relationship?
âą A connection between two use cases
âą Indicates a use case that is used (invoked) by
another use case
âą Links to general purpose functions, used by
many other use cases
18. What is an <<extend>> Relationship?
âą A connection between two use cases
âą Extends a use case by adding new behavior or
actions
âą Specialized use case extends the general use
case