Abstract: The workforce design method and tool provide answers to basic logistical human resources questions such as how many people need to be staffed, what kinds of qualifications are needed, when is the staffing needed, and how efficiently are employees being utilized. The methodology and tool apply to direct labor, indirect labor and resource allocations. The methodology and tool provide previously unseen levels of staffing granularity and output period forecasting. Staffing requirements can be ascertained at any level of organizational granularity. The methodology and tool can also show staffing demands in different work areas and departments enabling the dynamic staffing of the right number of people, at the right time, with the right qualifications, in the right work areas and job families for efficient allocation. This is a bottom up approach to staffing where headcounts are determined at any desired level of organizational granularity.