1. In an employee scheduling problem, a statement like "minimize total number of employees" can represent the integer programming model's:
a. decision variable. b. objective function. c. constraint. d. additional condition. e. none of the above.
2. Main inputs to master demand schedule (MDS) may include:
a. Sales orders, planning bill of materials, and aggregate planning. b. Demand forecast, planned orders, and planned order releases. c. Sales orders, inventory on hand, and safety stock. d. All of the above. e. Answers "a" and "c".
3. What approach can be applied to optimize personnel scheduling in service:
a. aggregate planning. b. inventory models. c. MRP scheduling. d. integer programming. e. tria-and-error scheduling.