Resources, Lean & Scheduling
QUESTIONS: (Questions are worth 4 points, Problems 8)
What are the objectives, inputs, and outputs of an MRP system?
How does MRP differ from ERP? (As a suggestion, you may want to find a description of the MRP module for a software vendor in order to fully answer this question.)
Differentiate between a push and a pull production system.
What are the advantages of mixed-model sequencing?
How can a balance be struck between the cost of breakdown maintenance and the cost of preventive maintenance?
How does the theory of constraints differ from traditional scheduling? How should bottleneck resources and nonbottleneck resources be scheduled? Why should transfer batches and process batches be treated differently?
PROBLEMS:
7. Turn to page 709 in your textbook and solve the problem for a., b. & c.
8. Turn to pages 713 and 714 in your textbook and calculate the capacity and load percent per work center per week for the Best Wheels Bicycle Company.
9. An assembly station is asked to process 100 circuit boards per hour. It takes 20 minutes to receive the necessary components from the previous work station. Completed circuit boards ae placed in a rack that will hold 10 boards. The rack must be full before it is sent on to the next work station. If the factory uses a safety factor of 10%, how many kanbans are needed for the circuit board assembly process?
10. Turn to page 778 in you textbook and find problem 17.4. Assign cookies to lines that minimize the sum of completion times.
11. Turn to pages 779 & 780 to find problem 17.14 and determine if FCFS, SLACK or SPT are better options for sequencing work through the shop.