Changes

In your modeling it might become necessary to change an aspect of the system or model; more formally, you need to request and manage a change in the defined requirements for the current system. You can represent this change request using a Change element, which is a structured comment containing information about the change and the measures taken to manage it. The element is rendered as shown.

d_ChangeElement

You can link Changes to model elements that are impacted by the change, using Realize connectors. You can also create a hierarchy of related Changes using Aggregation connectors. Each Change element has a status band at the left end, which is color coded to visually represent the value of the Status field in the element properties. The element has an identifying C in the top right corner, which you can hide if you prefer not to show it.

You can create Change elements on most types of diagram, although the Maintenance diagram is specifically designed for displaying and managing them. You can also create your own change-management diagram as a Custom diagram. You can add the Change (and other) elements to the diagram from the Diagram Toolbox, or directly to a package in the Project Browser.

Add a Change to the model using the Toolbox

Step

Action

See also

1

Open the Maintenance or Custom (or other) diagram to depict the problem.

 

 

2

From the Custom pages or Common page of the Diagram Toolbox, drag the Change icon onto the diagram.

Custom Toolbox

Common Page

 

3

If the Properties dialog does not automatically display, double-click on the element. Record the name and details of the Change, in the Properties dialog.

Properties Dialog

Create Maintenance Items

 

Add a Change to the model using the New Element dialog

Step

Action

See also

1

Identify the package in which to record the change, in the Project Browser.

Right-click on this package and select the Insert | New Element context menu option.

 

 

2

Complete the fields on the New Element dialog - in the Type field, click on the drop-down arrow and select Change.

Add Elements Directly To Packages

 

3

When you have created the element, double-click on it. Record the name and details of the Change, in the Properties dialog.

Properties Dialog

Create Maintenance Items

 

Notes

To toggle display of the letter C in the top right corner of the element, select or deselect the Show stereotype icon for requirements checkbox on the Options dialog, Objects page
 

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