Create a UML sequence diagram Show
Visio Plan 2 Visio Plan 1 Visio Professional 2021 Visio Professional 2019 Visio Professional 2016 Visio Professional 2013 Visio 2007 More...Less A UML sequence diagram shows how a set of objects interact in a process over time. It shows the messages that pass between participants and objects in the system, and the order in which they occur.
To build a sequence diagram, use a UML Sequence template or starter diagram, which includes the UML Sequence stencil. Drag shapes from the stencil onto the drawing canvas to build the diagram. Start a sequence diagram
Lifelines for actors and objectsUse an Actor lifeline shape for each participant, and an Object lifeline shape for each system component in your process.
Tip: As you drag the lifelines into place, green alignment guides appear onscreen to help you line up and space the lifelines relative to the other lifeline shapes.
MessagesUse message shapes to represent information being sent between lifelines.
Tip: Visio helps you glue the message endpoints to each lifeline. A green circle appears at the endpoint when it glues to a connection point. The connections points disappear when you are done dragging.
FragmentsIf one or more interactions form a loop, or require a condition to be met to end the interaction, enclose those interactions in a fragment shape:
ActivationPlace an Activation bar shape on a lifeline to show when and for how long that object or participant is active in the process. Typically, there will be arrows going to and from an activation box to demonstrate the flow of information. Drag the endpoints of the Activation bar up or down to make it the length that you want.
DestructionDestruction indicates when an object or actor is done participating in a system. A large X appears at the end of its lifeline. To show destruction of an object in a diagram:
To build a sequence diagram, use a UML Sequence template or starter diagram, which includes the UML Sequence stencil. Drag shapes from the stencil onto the drawing canvas to build the diagram. Start a sequence diagram
Lifelines for actors and objectsUse an Actor lifeline shape for each participant, and an Object lifeline shape for each system component in your process.
Tip: As you drag the lifelines into place, green alignment guides appear onscreen to help you line up and space the lifelines relative to the other lifeline shapes.
MessagesUse message shapes to represent information being sent between lifelines.
Tip: Visio helps you glue the message endpoints to each lifeline. A green circle appears at the endpoint when it glues to a connection point. The connections points disappear when you are done dragging.
FragmentsIf one or more interactions form a loop, or require a condition to be met to end the interaction, enclose those interactions in a fragment shape:
ActivationPlace an Activation bar shape on a lifeline to show when and for how long that object or participant is active in the process. Typically, there will be arrows going to and from an activation box to demonstrate the flow of information. Drag the endpoints of the Activation bar up or down to make it the length that you want.
DestructionDestruction indicates when an object or actor is done participating in a system. A large X appears at the end of its lifeline. To show destruction of an object in a diagram:
To build a sequence diagram, use the UML Model template, which includes a set of UML Sequence shapes. Drag shapes from the stencil onto the drawing canvas to build the diagram. Start a sequence diagram
Read on for more guidance about working with sequence diagrams. Lifelines for actors and objectsUse an Object lifeline shape for each participant and system component in your process. An object lifeline represents the existence of an object at a particular time. If the object is created or destroyed during the time period the diagram represents, the lifeline stops or starts at the appropriate point. An object's destruction is marked with a large X. Use a Lifeline shape to show conditionality on an object lifeline.Messages
Tip: To indicate a message from an object to itself, glue the two endpoints on an arc-shaped Message shape to two connection points on the same object lifeline. ConstraintsIf one or more interactions require a condition to be met to end the interaction, enclose those interactions in one of the constraint shapes:
ActivationPlace an Activation bar shape on a lifeline to show when and for how long that object or participant is active in the process. Typically, there will be arrows going to and from an activation box to demonstrate the flow of information. Drag the endpoints of the Activation bar up or down to make it the length that you want.
DestructionDestruction indicates when an object or actor is done participating in a system. A large X appears at the end of its lifeline. To show destruction of an object in a diagram:
See AlsoUML diagrams in Visio Create a UML component diagram Create a UML communication diagram Create a UML deployment diagram Need more help?What does a message mean in sequence diagram?Messages in a sequence diagram. A message is a communication between objects that conveys information with the expectation that action will ensue. The receipt of a message is one kind of event. The message is drawn as a horizontal line from one object lifeline to another.
What are the elements of sequence diagram?A sequence diagram consists of a group of objects that are represented by lifelines, and the messages that they exchange over time during the interaction. A sequence diagram shows the sequence of messages passed between objects. Sequence diagrams can also show the control structures between objects.
Which of these is not a good practice to follow in sequence diagrams?Get rid of unnecessary detail
The issue is that adding too much detail ends up with too much clutter thereby making the diagrams more difficult to read and comprehend. The same could be said when it comes to sequence diagrams at the system level. Main thing is to keep all your diagrams clutter-free, as shown below.
What is true about sequence diagram?A sequence diagram shows, as parallel vertical lines (lifelines), different processes or objects that live simultaneously, and, as horizontal arrows, the messages exchanged between them, in the order in which they occur. This allows the specification of simple runtime scenarios in a graphical manner.
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