Auto-Narrow Property Values for Classifying Properties

Hierarchical specification trees often require to narrow down the value of classifying property values to a subset which is equal to the child-specifications of the parent.

Example

• Classifying Properties: ID-1, ID-2

• Specification Hierarchy

• Wall [ ID-1: Wall]

  • Interior Wall [ ID-2: Interior_Wall ]

  • Exterior Wall [ ID-2: Exterior_Wall ]

• Door [ ID-1: Door]

  • Two-Wing Door [ ID-2: TwoWingDoor ]

  • Single-Wing Door [ ID-2: SingleWingDoor ]

In this example ID-2 can have 4 different values, but if the specification is Wall the values of ID-2 would automatically be narrowed down the Interior_Wall & Exterior_Wall .