Others analyze assemblies in different ways, providing quality metrics, sequence diagrams, class diagrams, dependency structure matrices or dependency graphs.
12.
A system sequence diagram should be done for the main success scenario of the use case, and frequent or complex alternative scenarios.
13.
In the UML, the use case could be modelled using an activity diagram, a sequence diagram, or a communication diagram.
14.
Communication diagrams show which elements each one interacts with better, but sequence diagrams show the order in which the interactions take place more clearly.
15.
The messages and classes identified through the development of the sequence diagrams can serve as input to the automatic generation of the global class diagram of the system.
16.
In addition, other behavioral UML diagrams such as activity diagrams, sequence diagrams, communication diagrams and state machine diagrams can also be used to visualize use cases accordingly.
17.
The differences between timing diagram and sequence diagram are the axes are reversed so that the time is increased from left to right and the lifelines are shown in separate compartments arranged vertically.
18.
This makes the interaction overview diagram useful to " deconstruct a complex scenario that would otherwise require multiple if-then-else paths to be illustrated as a single sequence diagram ".
19.
Communication diagrams show a lot of the same information as sequence diagrams, but because of how the information is presented, some of it is easier to find in one diagram than the other.
20.
Specifically, a System Sequence Diagram ( SSD ) is a sequence diagram often used to show the interactions between the external actors and the system under design ( SuD ), usually for visualizing a particular scenario of a use case.
