Use this tab to define and maintain the elements of the configuration formula. Each element represents one piece of the mathematical expression that makes up the formula. Elements are defined by their item type. Possible item types are shown below.
Item Type | Description |
Operator | A mathematical operator, including the following six
characters: + - / * ) , |
Built-in Function | A common SQL function used for numeric operations, for example, ABS, a function to return the absolute value of an expression, e.g., ABS(2). For more information on built-in functions, see the Function tab section below (under Secondary Table). |
Value | A numeric constant entered into the formula (e.g., 2.5). |
Characteristic Value | The value of a configuration characteristic, either from the configuration of the evaluated part or DECLARED during back office rule evaluation. |
Characteristic Quantity | The value of a configuration characteristic quantity, either from the configuration of the evaluated part or DECLARED during back office rule evaluation. |
Formula | Other formulas defined for the configuration family. A formula can call other formulas. |
Combination | The value of the combination table ID to be used as an element in this formula. The combination table must belong to the same family as the formula using it. |
By placing elements into a sequence, a formula is created to calculate a numeric value. An example of a simple configuration formula is shown below.
Item | Item Type | Test Value |
WIDTH | Characteristic Value | 5 |
* | Operator | |
HEIGHT | Characteristic Value | 3 |
When tested, the above example formula evaluates to WIDTH * HEIGHT or 5 * 3 = 15. At execution time, the configuration characteristic values WIDTH and HEIGHT from the current configuration evaluation are substituted into the formula.
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