Use case diagram and activity diagram are not mutually exclusive, but complementary. They can be used together to provide a more complete and consistent view of the system.

Wireless health monitoring systems are suggested for use in the health care of the elderly to enable independent but secure living for as long as possible. Activity monitoring is highly valued by ...

UML activity diagram is suitable for modeling parallel and concurrent flows in an actual system. It is also significant for software testing. The subactivity state in activity diagram divides the ...