Aggregate planning deals with a number of constraints. These typically are:

a) Job assignments, job ordering, dispatching, and overtime help.

b) Part-time help, weekly scheduling, and SKU production scheduling.

c) Subcontracting, employment levels, inventory levels, and capacity.

d) Capital investment, expansion or contracting capacity, and R&D.

e) Facility location, production budgeting, overtime, and R&D.