A work center is generally either an individual machine or a group of machines, however, a person or a group of people can also constitute a work center. An operation is carried out there.
If you want to carry out a standard values calculation, you must specify the work center where the operation is going to be processed. You specify the work center for which the standard values are to be calculated in the operation in the routing. Technical data describing the work center from the point of view of the standard values calculation must be assigned to this work center. Machine data and rounding and additional value keys are examples of technical data. In the technical data you also enter the processes that are assigned to the work center.
If a standard values calculation is to be carried out using a work center then at least one process must be assigned to this work center which can be used to carry out the calculation.
You use the standard value key in the work center to specify which standard values can be used in scheduling, capacity planning and costing. You can maintain these standard values in the routing or you can carry out a standard values calculation for them.
If you have not entered a standard value key in the work center (for example, for a statistical work center) then a standard values calculation cannot be carried out.
You can find more detailed information on work centers in the guide
PP - Work Centers .