In UML diagrams, you can
add parameters to pass information into and out of operations.
Before you begin
You must have a diagram open in
the diagram editor, and the operations list compartment must be visible.
Ensure that you have not set preferences to filter or hide operations.
To see the parameters that you add to an operation in a classifier,
you must modify the classifier's properties to show operation
signatures.
About this task
To add a parameter to an operation:
Procedure
- In the diagram editor, click an operation to select it
and click the selection to edit it.
- In the parentheses, type the parameter's direction
kind (if applicable), name, type expression, and default value in
the following syntax:
operation ([direction] name : type-expression = default-value)
For example: getBalance([in] day : Date = 01/01/2005)
- Optional: To add a return type, type the information
after the parentheses. For example: getBalance(day
: Date = 01/01/2005) : MoneyType
Results
Tip: You can also add parameters to operations
in the Project Explorer view.