Categories of parameters
The four categories of parameters are described in this table. Parameters are created on the Parameter form, then added to labs on the Lab form. When a parameter is added to a lab, it is assigned to one of these categories.
| Parameter Category | Description |
|---|---|
| Rollup | Parameters that are calculated for a formula
are based on parameter values of the formula’s items. They can be used in
calculations of other parameters. For example:
SOLIDWT is a rollup parameter of the weight
fraction (in %) of solids.
|
| Information | Parameters that are not rolled up, but can be
used in calculations of other parameters. Users specify values at each formula
level. For example, a parameter has a text value of
“yes” or
“no” if there is a kosher requirement.
|
| Equation Total | Equation-based parameters that are calculated from other parameters. For example, a total fat parameter adds values of saturated and non-saturated fat. |
| Cost | Parameters that are associated with one or
more formula costs; they are rolled up but separated from the Rollup parameters
due to the effects of byproducts on Cost parameters.
To be rolled up, packaging parameters should be added to the lab as Cost. |