Tables in Constraints 

Purpose

You can use tables in constraints to:

Inferring Values

You can use tables in constraints to set characteristic values, as in actions and procedures. The difference is that you can process the table in several different directions in constraints, because you can define different value assignment alternatives.

Process flow

Configurable material BIKE has characteristics DYNAMO and HEADLAMP. The values of these 2 characteristics influence each other.

  1. Choose Tools ® Table structure ® Create.

    2. Create table T_LIGHT and assign your 2 characteristics to it.

    All characteristics are single-value, so you use the same characteristics in the table and in the class.

    The difference is that you can define several value assignment alternatives, so you can use either characteristic to infer a value from the other.

     

    Characteristics

    Alternative 1

    Alternative 2

    HEADLAMP

    X

    		  

    DYNAMO

    		  

    X

     

  2. Choose Tools ® Table entries and enter the following combinations of values:

    3.  

    HEADLAMP

    DYNAMO

    Halogen

    Elektra

    Lumotec

    Axa

    FER

    FER dynamo

     

  3. Create a dependency net with the following constraint:

    4. OBJECTS:

    BK IS_A (300)BIKE

    RESTRICTIONS:

    TABLE T_LIGHT

    (HEADLAMP = BK.HEADLAMP,

    DYNAMO = BK.DYNAMO)

    INFERENCES:

    BK.HEADLAMP, BK.DYNAMO

  4. Allocate the dependency net to the configuration profile.

Result

As soon as you assign a value to characteristic HEADLAMP or DYNAMO, the value for the other characteristic is inferred by the table call.