Anchor and Nonanchor Dimensions

Anchor and nonanchor dimensions:

• Anchor dimensions are always required dimensions in the type that is used in the valid intersection evaluation.

  See Example: Required Dimension.

• Nonanchor dimensions are either required or not required:

  • If a nonanchor dimension is required, any type that does not use that dimension will ignore any valid intersection group where that dimension is tagged as required as it evaluates the valid intersections.

  • If a nonanchor dimension is not required, any type that does not use that dimension will still evaluate any valid intersection group that includes that dimension as not required and evaluate the intersections of any other dimensions in the valid intersection group in the type.

• Unselected anchor dimension members are valid by default, but you can mark them invalid by clearing the Unselected Members are Valid option. This option marks all intersections with anchor dimensions not selected in this rule as invalid.

  See Example: Unselected Members are Valid.