Typically, when you have a number of process input parameters for which you want to be able to specify values in a particular batch, you set up a recipe formula. For instance, if you want to have different values for small, medium, and large batches, you would set up three recipe formulas that specify the typical parameter values for each batch size. Then, when you create the batch, you simply pick the basic formula that you want to use and, if necessary, modify any or all parameter values. You can create a formula at any recipe level that gets assigned to a Batch Executive.
As a simple example, we will create three formulas for the procedure PRC_PAINT. The formulas will specify the parameter values for light, medium, and dark shades of paint. The light shades are most popular and are usually produced in larger batches. The formulas, parameters, and values are shown in the following table. (Values enclosed in angle brackets are the default values originally established for the batch input parameters.)