Drawing requirement diagrams

A SysML requirement diagram enables you to visualize any kind of requirements of your system, both functinal and non-functional. You can also visualize the inter-relationships between requirements. By using SysML requirement diagram with UeXceler, you have a complete set of system requirements that involve the business goal, the user stories that describe user problems/concerns and the requirements to address the problems.

Creating requirement diagram

  1. Select Diagram > New from the application toolbar.
  2. In the New Diagram window, select Requirement Diagram.
  3. Click Next.
  4. Enter the diagram name and description. The Location field enables you to select a model to store the diagram.
  5. Click OK.

Creating requirement

To create a Requirement in a SysML requirement diagram, click the Requirement button on the diagram toolbar and then click on the diagram.

Create requirement
Create requirement

Decomposing requirement

To decompose a Requirement in a SysML requirement diagram:

  1. Move your mouse pointer over the requirement.
  2. Press on the Resource Catalog button at top right and drag it out.
  3. Release the mouse button at the place where you want the decomposed requirement to be created.
  4. Select Containment -> Requirement from Resource Catalog.
  5. A new requirement will be created and is connected to the source requirement with a containment connector. Enter its name and press Enter to confirm editing.
    Requirement and Containment created
    Requirement and Containment created

Inline editing requirement properties

To inline edit the property of a Requirement (e.g. ID), double-click on the property, enter new value and press Enter to confirm.

Inline editing Requirement properties
Inline editing Requirement properties

Editing requirement properties with specification window

You can edit the properties of a requirement through the specification window. To open the window, click on the tiny magnifier icon at the top right of a Requirement shape.

Requirement Specification
Requirement Specification

Creating test case and link to requirement

A test case describe the possible scenarios for testing a requirement. To create a Test Case, click the Test Case button on the diagram toolbar and then click on the diagram.

Create test case
Create test case

Move your mouse pointer to the Test Case. Press on the Resource Catalog button at top right and drag it out. Move the mouse pointer over a Requirement and then release the mouse button, a Verify relationship will be created from the Test Case to the Requirement.

Verify relationship created
Verify relationship created

Related Resources

The following resources may help you to learn more about the topic discussed in this page.

 
Chapter 14. Requirement diagram Table of Contents 2. Customizing requirement types
 

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