
110 n The Art of Software Modeling
Clearly, this simple model will not suffice to describe the details for the inter-
actions between each worker and the specific tasks each worker must perform. It
does, however, provide a good starting point to indicate the areas that will require
investigation, and it suggests some of the key business elements and workers.
In this model, there are at least three key worker roles—Sorter, Loader, and
Driver. ere are likely to be other roles that are missing from the current model.
Perhaps there are Supervisors who periodically review Sorter accuracy. Who brings
the packages to the Sorter in the first place? Doe ...