ABC-analyze example

9. What is meant by the planning activity structuring?

The structuring of production systems has a spatial and a temporal component. The temporal component is reflected in the scheduling— the spatial component corresponds to the structure as it forms part of the factory planning, the elements of the factory will be located in their spatial location.

10. What are the Objectives for the ideal layout?

· Flexible, modular expandability of Capacity- and technology leap

· Demand-oriented communication structures

· Optimized logistics links (short distances to the sink)

· Decoupling of the personnel and material flows

· Focusing on core technologies

11. How can be used a flow chart by production planning?

Flow charts graphically or numerically reflect the planned technological and organizational flow of production order through manufacturing and assembly systems.

12. What is the Dilemma of scheduling?

· Minimization of cycle time

· Maximization of the capacity utilization

· Consideration of appointments

13. Define three priority rules?

FIFO First In First Out:

Selection of the operation with the earliest start time (i.e. availability date first step in order)

FCFS First Come First Serve:

Selection of the operation, that queue of the unit reached first

SPT Shortest Processing Time:

Selection of the operation with shortest cycle time

LPT Longest Processing Time:

Selection of the operation with the largest cycle time

SRPT Shortest Remaining Processing Time:

Selection of the operation, with the smallest sum of the following cycle times

LRPT Longest Remaining Processing Time:

Selection of the operation, with the highest sum of the following cycle times

FOPR Fewest Remaining Operations:

Selection of the operation with the smallest number of the following steps in order

MOPR Most Remaining Operations:

Selection of the operation with the highest number of the following steps in order priority rules

SLACK slip control:

Selection of the operation with the smallest difference between remaining time until the desired end of order by sum over the cycle times of the unrecognized order

EXT external priority:

Selection according to the predetermined (external) Priority

END desired end date:

Selection of the operation with the nearest specified set cycle time

14. What is a Kanban and what are the benefits?

Kanban (Japanese: card)

· serve as an element of control

· usually divided into kaban production and transport benefits

· Low material stocks (lower capital lockup)

· Clear material flow (Simplified inventory control)

· Low effort control (remote control)

15. What is the relationship between the planned production volume and the cycle time?

Given production rate

X= 42 parts per shift, d. h. 42 parts in T = 452 [Minutes]

Cycle time to use

(=Reciprocal of the predetermined production rate)

C = T/X = 462 [Minutes] /42 [parts] = 11 Minutes per part

16. What is the theoretical minimum number of workstations required?

Given: element times ti (i: 1, 2... 10)

Specified cycle time C = 11 per part

minimum number of (theoretical minimum number) of stations

17. Which priority indicators do u know?

· Position value (Helgeson / Birnie, 1961): own processing time plus those of all subsequent elements

· time of elements (Moodie / Young 1965)

· Number of direct subsequent elements (Tonge, 1965)

· Total number of subsequent elements (Talbot, 1984)

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