How do you draw ALT in StarUML?

Please refer how to set “alt combinedFragment at starUML due to I have no 10 reputation to post image.

create a sequence diagram.
add a CombinedFragment1 into diagram.
change the “seq CombinedFragment1 ” to “alt CombinedFragment1 “
select the “Interaction Operand”

What does Alt mean in sequence diagram?

alternative scenarios
alt is used to describe alternative scenarios of a workflow. Only one of the options will be executed. opt is used to describe optional step in workflow. For example, for online shop purchase sequence diagram you may use opt to describe how user can add gift wrapping if she wishes.

How do you show exceptions in sequence diagram?

UML provides neither notation to model exception handling in sequence diagrams nor any reasoning why it is absent. Some clumsy approaches to model try-catch blocks are by utilizing combined fragments – alt (alternatives) and breaks, while adding stereotypes for reply messages representing thrown exceptions.

How do you draw a sequence diagram using StarUML?

To create a Sequence Diagram:

Select first an element where a new Sequence Diagram to be contained as a child.
Select Model | Add Diagram | Sequence Diagram in Menu Bar or select Add Diagram | Sequence Diagram in Context Menu.

How do you draw class diagram with StarUML?

To create a Class Diagram:

First select an element where a new Class Diagram to be contained as a child.
Select Model | Add Diagram | Class Diagram in the Menu Bar or select Add Diagram | Class Diagram in Context Menu.

What is ref in sequence diagram?

ref Reference: refers to an interaction defined on another diagram. The frame is drawn to cover the lifelines involved in the interaction. You can define parameters and a return value.

What is meant by exception handling?

In computing and computer programming, exception handling is the process of responding to the occurrence of exceptions – anomalous or exceptional conditions requiring special processing – during the execution of a program.

What is exception handling in UML?

OMG UML Specification: An exception handler is an element that specifies a body to execute in case the specified exception occurs during the execution of the protected node.

How do you draw ALT in StarUML?