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In a system sequence diagram a box refers to a class of objects. False. In the object-oriented approach to systems development, the flow of information is achieved by sending messages either to and from actors or back and forth between internal objects.
- What are objects in sequence diagram?
- What does a system sequence diagram show?
- What is true about a sequence diagram?
- What are the main components of system sequence diagram?
What are objects in sequence diagram?
A sequence diagram is a Unified Modeling Language (UML) diagram that illustrates how a group of objects interact and operate with each other sequentially. The sequence diagram consists of a group of objects that are represented by lifelines and the messages that they exchange over time during the interaction.
What does a system sequence diagram show?
A sequence diagram or system sequence diagram (SSD) shows process interactions arranged in time sequence in the field of software engineering. It depicts the processes involved and the sequence of messages exchanged between the processes needed to carry out the functionality.
What is true about a sequence diagram?
A sequence diagram is a type of interaction diagram because it describes how—and in what order—a group of objects works together. These diagrams are used by software developers and business professionals to understand requirements for a new system or to document an existing process.
What are the main components of system sequence diagram?
Actor: Actor represents an external user / end user who interact with the system. Object: Object is represented by one of components of the system. Unit: A unit is a subsystem, or a sub component or other entity within the system.
