Can Sequence Diagram have multiple actors?

What is a sequence diagram with an example?

Sequence Diagram Notations. The sequence diagram represents a timeline that starts at the top and descends slowly to mark the sequence interactions. Each object is represented by an arrow and each column has the messages that were exchanged.

The next question is: How do you read a sequence chart? Basic Sequence Diagram Notations

1. Participants or Class Roles. The class roles define the behavior of an object in context.
2. Execution Occurrence or activation. The activation boxes indicate the amount of time that an object must complete a task.
3. Messages.
4. Lifelines.
5. You can destroy objects.
6. Loops.
7. Synchronous Message.
8. Asynchronous Message.

So, what is create in sequence diagrams?

An sequence diagram depicts an interaction between a set objects that participated in a collaboration or scenario. It is arranged in chronological order and shows the objects involved in the interaction by the "lifelines" (the messages they send each other).

How can you convert a sequence to a collaboration in Argouml

To convert between collaboration and sequence diagrams:

1. Right-click on the background of the diagram.
2. Choose Show as Collaboration if the diagram is a sequence. Choose Show as Sequence if the diagram is a collaboration.
3. You can repeat this step to switch between the two.