Sequence Diagram

Posted in Information Technology & Systems, Total Reads: 1850
Advertisements

Definition: Sequence Diagram

Sequence diagram is a visual representation of various messages sent between the objects of a system and the order in which these messages occur.

Sequence diagram is an important tool to visualize the interaction between various objects of a business. It can be used to model both existing procedures as well as planned procedures for future. It is a formal way of assisting developers who are designing the system by giving them a clear picture of how the entire system should work in real time.

The important elements in a sequence diagram are –

Lifelines: These are the objects or actors participating in a sequence diagram

Messages: represent the communication occurring between the objects. The messages are represented by horizontal arrows between the objects.

Solid arrow with solid head - represents synchronous message from sender to receiver

Solid arrow with stick head – represents asynchronous message from sender to receiver

Dotted arrow – represents response signal from receiver to sender.

Let’s consider an example of sequence diagram for an ATM transaction between a user and ATM machine.

Hence, this concludes the definition of Sequence Diagram along with its overview.

Advertisements

Browse the definition and meaning of more terms similar to Sequence Diagram. The Management Dictionary covers over 7000 business concepts from 6 categories.

Search & Explore : Management Dictionary



Share this Page on: