| Constraints (tigrt0137m000) |  |
| Use this session to list or define constraints. If you define constraints, you must define the constraint lines in a specific syntax. A constraint consists of the following components: If (condition). Then (action). Else (action) (not mandatory). Example If the color of the seat is red Then the material of the seat is cotton Else the material of the seat is linen In the If component of the constraint you formulate one of the following: A comparison between an aspect and a value. A comparison between a calculation result and a value. (Depending on whether the result of the comparison is True or False, the constraint executes the Then component or the Else component.) An action ( Then or Else ) describes: The selection of a value for an aspect. The exclusion of a number of possible values, depending on the values of preceding aspects. Specific menu If you click Make Sequence Number Consecutive on the Specific menu, the sequence numbers of the constraint lines are consecutive. For example, if you have two constraint lines with sequence numbers 1 and 3, and you carry out this command, the constraint lines receive the sequence numbers 1 and 2. If you start the Constraints (translated) (tigrt0586m000) session from the Specific menu, you see a more user-friendly translation of the constraint. Related topics Setting up a classification structure in GRT
Fields | Description
Constraint ID | The code that identifies a constraint.
Constraint ID | The description or name of the code.
Constraint Part | A constraint can consist of three components. You can define constraint lines for each constraint component.
Sequence No. | The sequence number that identifies a constraint line in a constraint component.
Feature | A feature or a specific aspect (if there is more then one aspect linked to the feature) to which the constraint component applies. If there is more than one aspect linked to a feature, the aspect number in the Aspect field distinguishes the different aspects. Note You can define features in the Features (tigrt0101m000) session.
Calculation ID | A code to identify a calculation. The constraint component applies to this calculation. Note You can define calculations in the Calculations (tigrt0132m000) session.
Aspect | If there is more than one aspect linked to a feature, the aspect number distinguishes the different aspects.
Aspect | The description or name of the code.
Description | The description or name of the code.
Return Value | The value with which the aspect or the calculation result is compared. The entered value is either a return value in the answer group that is linked to the aspect, or an answer to the calculation.
Answer | The description or name of the code.
Feature | The description or name of the code.
Operator | The arithmetic symbol that is used in the constraint.
Expression | Expression signs indicate the relation between two consecutive constraint lines. The ampersand (&) has priority over the V sign.