discrete constraints

The constraints which restrict properties to a specific set of values (such as integers). These constraints can be applied to a property:

• Multiple
• Threshold
• BOOL
• AND
• MIN
• MAX

The Multiple and Threshold constraints are applied to a property in the Optimization definition. For example:

Multiple: Processes.planned production, 10

Where, the Pocesses.planned production is a multiple of 10.

The BOOL, AND, MIN, and MAX constraints can be defined in the Class Model through the property definition. The property definitions that include such a function with specified arguments, are posted as discrete constraint. For example:

A = BOOL(B)

This indicates that A = 1 when B > 0, and A = 0 when B <= 0. When A and B are posted, this BOOL function is considered as discrete constraint. In certain scenarios, discrete constraints can be removed during pre-optimization. Discrete constraints must be considered as having a negative impact Solver performance.