GSCM ch. 4

22 flashcards · Other · by Daniel F.

1. Capacity Management

   the ability to hold, receive, store or accommodate a number of customers in a system

2. Strategic capacity planning

   finding the overall capacity level of capacity-intensive resources to best support the firm’s long-term strategy

3. Capacity

   the output that a system is capable of achieving to deliver over a period of time

4. best operating level

   a level of capacity for which the process was designed and thus is the volume of output the best operation level at the level where average unit cost is minimized

5. Capacity utilization rate

   Capacity used / Best operating level

6. focused factory

   A facility designed around a limited set of production objectives. Typically the focus would relate to a specific product or product group.

7. Plant within a plant (PWP)

   An area in a larger facility that is dedicated to a specific production objective (for example, product group). This can be used to operationalize the

8. Capacity flexibility

   he ability to rapidly increase or decrease production levels, or to shift production capacity quickly from one to another

9. Flexible plants

   The ultimate in plant flexibility is the zero- changeover time plant. Such a plant can adapt to change by the use of movable equipment, knockdown wall

10. Flexible processes

    flexible manufacturing processes permit low- cost switching from one product to another and enable economies of scope (multiple products can be produce

11. Flexible workers

    Flexible workers have multiple skills and the ability to switch easily from one kind of task to another.

12. capacity cushion

    he amount of capacity in excess of expected demand (70% is best)

13. determining capacity requirements

14. If design capacity of all processes is sufficient, then the system is

    constrained by the arrivals

15. Departure rate (i.e. throughput)

    number of products that leave the system per time unit determined by the capacity of the bottleneck if the system is constrained by the arrivals, the departure rate is equal to the arrival rate

16. Utilisation rate

    fraction of the total time in which a machine is used for production total operating time / total time = actual output/design capacity

17. Efficiency

    actual output/effective capacity

18. λ

    arrival rate

19. μ

    production rate

20. The utilisation rate ρ for a workstation consisting of n identical, parallel servers can be computed from ρ

    λ/(nμ)

21. WIP

    The number of products that have been taken into production, but have not yet been finished

22. Little’s equation

    Estimate WIP if the system is constrained by the arrivals L=λ*W L is the average WIP W is the deterministic throughput time λ is the arrival rate