A hardware store sells wood preserver in multiple colors and styles. The store must verify that the product database tracks the inventory of wood preserver in the warehouse. The store defines a business rule that requires the product database to maintain accurate data for the colors, styles, and units of wood preserver. You configure child rule sets with rule statements that verify the data for each type of wood preserver. You configure the parent rule set to verify the output from the child rule sets.

You configure the following child rule sets:

Rule set name: Color

    IF COLOR = (PINE, OAK, CHESTNUT) THEN GOOD_COLOR

Rule set name: Size

    IF SIZE = (250, 500, 1000) THEN GOOD_SIZE

Rule set name: Style

    IF STYLE = (GLOSS, MATT) THEN GOOD_STYLE

You configure the following parent rule set:

Rule set name: Wood Preserver

    IF COLOR = GOOD_COLOR

    AND SIZE = GOOD_SIZE

    AND STYLE = GOOD_STYLE THEN WOOD PRESERVER IS GOOD_PRODUCT 

To configure a condition to compare an input to a range of values, select the

Input: List of Values

option in a function condition. You can configure similar parent rule sets and child rule sets for other products in the inventory.