Creating and Deleting Change Rules

The upper part of the Change Representation Rules form shows the name of the current RPLB.

• You can switch to another RPLB by selecting it in the Members List and clicking the CE button.

The Rule Sets drop-down list allows you to switch to any CRST owned by the current RPLB.

The Rules list shows all DCRULEs and ACRULEs in the current CRST.

Specifying the Owning Rule Set

• Select the CRST whose member DCRULEs or ACRULEs you wish to modify from the Rule Sets drop-down list.

  The DCRULEs and ACRULEs owned by the current CRST will be shown in the Rules list (or None if you have just created the CRST).

Creating a Rule

1. To create a new Rule, first select the type of Change Rule that you wish to create, Design (DCRULE) or Annotation (ACRULE), from the Create drop-down list.

2. Click the Create button and give the new Rule a name.

   The name will be added to the Rules list and will be highlighted as the current selection.

Deleting a Rule

• To delete a Rule from the current CRST, highlight it in the Rules list and click the Delete button.

Specifying the Changed Elements to which Rules Apply

You can specify the type of change or create a list of types of change, as follows:

3. To specify the type of changed element to which the current DCRULE or ACRULE is to be applied, select the type from the For drop-down list.

4. Use the right-hand drop-down list for Annotation Changes and the left-hand drop-down list for Design Changes.

   The drop-down list available depends on the type of Change Rule selected.

5. To create a list of changed design elements that a DCRULE is to be applied to, select an option in the For drop-down list, then click the Add button.

6. Select another option from the For drop-down list and again click the Add button.

   Clicking the Add button adds the option selected to the list.

7. Individual options can be deleted from the list by selecting them and clicking the Remove button.

8. A complete options list can be deleted by clicking the Clear button.

Criteria for Rule Application

• To apply qualifying restrictions to the elements specified by the For option, type an expression in the With text box.

  For example, if the For gadget specifies Branches, you might use the With qualifier to enter:

  ’(HBOR GT 100) AND (TBOR GT 80)’

  The above means ‘Branches with HBOR greater than 100 mm and TBOR greater than 80 mm’.

  The Style line below the With text box shows the name of the Change Style which is referenced by the current Change Rule. The way in which you set this is explained in Associating Change Rules with Styles.