Edit Transitions In Value Lifeline

How to:

To add transitions to the states on a Value Lifeline element, via the diagram, follow the steps below:

Step

Action

1

Move the cursor above the transition line

The cursor changes form (Timelinecursor4)

2

Click the mouse button

The New Transition Event dialog displays

3

In the Transition To field, click on the drop-down arrow and select a state from the list of available states; this displays on the Lifeline element within the transition box

The remaining fields on the dialog are optional

4

In the Event field, type the name of the event that the transition represents; this displays on the Lifeline element just below and at the start of the transition line

5

In the Duration Constraint field, type any constraint on the duration of the transition; this displays on the Lifeline element, along the top of the element over the transition

6

In the Time Constraint field, type any constraint on the start of the transition

This displays on the Lifeline element at the start of the transition, just after the Event name

7

Click on the OK button to create the new transition

 

To edit a transition, follow the steps below:

Step

Action

1

Click on the state name in the transition

Alternatively, right-click on the state name to display the context menu, and select the Edit menu option

The Edit Transition dialog displays, which is the same as the New Transition Event dialog, except that the At Time field is enabled

2

If necessary, overtype the At Time field to define a different start point

You cannot change the At Time field for the first state in the timeline; this is always 0

3

Edit the remaining fields as necessary

4

Click on the OK button to save the changes

 

To change the Transition Time, follow the steps below:

Step

Action

1

To change the start or end time of a transition, click on the start or end point of the transition and drag it to the new position

While on the line, the cursor shape changes to the horizontal movement cursor (Leftrightcursor)

 

To delete Transitions, follow the steps below:

Step

Action

1

To delete a transition, press and hold ( Ctrl ) and click on the transition state name

While you hold ( Ctrl ) on the transition state name, the cursor changes form (7).

Alternatively, right-click on the state name to display the context menu, and select the Delete menu option