Chapter 3 Building a requirements model

Detail properties

The Detail page of a requirement property sheet displays the following properties:

Property Description
Comment Any comment on the requirement
Stereotype Sub-classification used to extend the semantics of an object without changing its structure. It can be predefined or user-defined
Type Type of requirement from the process point of view (See Customizing a list of values)
Status Validation level for a requirement (See Customizing a list of values)
Priority Priority level attached to a requirement. Select a value in the dropdown listbox or type a value. The value cannot be null or negative, and is limited to one decimal. For example: 1.9
Selected If checked, the requirement is retained for the project. If cleared, the requirement is excluded from the project and the sum of workloads
Risk Level of risk, would a requirement not be satisfied (See Customizing a list of values)
Verification Test level for a requirement (See Customizing a list of values)
Workload 1 Time assigned to a first person or team to satisfy the current requirement (See note below)
Workload 2 Time assigned to a second person or team to satisfy the current requirement (See note below)
Workload 3 Time assigned to a third person or team to satisfy the current requirement (See note below)
Workload 4 Time assigned to a fourth person or team to satisfy the current requirement (See note below)

Note   Workloads
You should respect a unit for all workloads (hour or day). A workload is divided by as many persons in a team. Values must be greater or equal to zero, limited to one decimal (e.g. 3.5).
A parent requirement workload is the sum of its child requirements workloads. Parent workloads are automatically calculated once you enter their child workloads. Parent workloads are in read-only mode (grayed). You can only modify child workloads.

Customizing a list of values

Some requirement properties come with a predefined list of values. You can define your own list of values by creating an extended model definition (See following procedure). The new list will replace the predefined one. In the case of several extended model definitions, all the lists are merged.

You can customize the list of values for the following requirement properties:

You can also customize the list of values for the Link type property in traceability matrix views, and for the Type property in the User Allocations page of the requirements property sheet. (See note in step 8)

Steps To customize a list of values:

  1. In the menu bar, select Model→Extended Model Definitions.

    The List of Extended Model Definitions appears.
  2. Click the Add a Row tool.

    or

    Click a blank line in the list.

    An extended model definition appears with generic name and code.
  3. Type a name and a code for the new extended model definition.
  4. Click Apply.
  5. Double-click the arrow at the beginning of the line.

    The extended model definition property sheet appears.
  6. In the left pane, expand the Settings category.
  7. In the Settings category, expand the Custom Values category.
  8. In the Custom Values category, expand the Requirement category.


    Note: Expand the TraceabilityLink category to define Link type values in traceability matrix views, and the UserAllocation category to define Type values in the User Allocations page of requirements property sheets.
  9. In the Requirement category, select one property. For example, TypeMap.

    The right panel displays the name and comment (definition, default values) for the selected property.
  10. In the Value table, click the Add a Row tool.

    or

    Click a blank line in the list.

    A value is created with a generic name.
  11. Referring to the default values in the Comment box, type a value in the Value column (this value will appear in the property dropdown listbox) and a code in the Name column (this code is stored in the system).
  12. Repeat step 11 for each value you want to create.
  13. Click OK in the extended model definition property sheet.

    The new extended model definition appears in the List of Extended Model Definitions.
  14. Click OK in the List of Extended Model Definitions.

    The requirement property dropdown listbox displays the customized values.

 

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