Value

The value operand defines the quantity to be contributed to the target. The Constraints view provides several methods for determining this quantity:

• You can explicitly state the quantity, for example Item A consumes 1 from Item B. This constraint means that each Item A added to the solution decreases the amount of Item B in the solution by 1.

• You can define the value as the quantity of another item, or the value of an attribute, linked item or resource. For example, Item A provides three times the quantity of Item B to Item C. This constraint means that for each Item A added to the solution, the quantity of Item C is incremented by three times the quantity of Item B.

• You can define an expression that determines which products in the relationship or class specified in Item will increment the target. For example: Any item of Relationship A provides Relationship A, Attribute Color = Red to Item B. This constraint means that for each item in Relationship A for which the attribute Color = Red that is added to the solution, the quantity of Item B is incremented by one.