02 - Material Inventory/Requirements Flashcards
Which types of determination of material requirements do you know? Name the respective data bases!
1) deterministic determination of requirements
Based on specific orders or production programs
2) stochastic determination of requirements
Based on statistical analyses
3) heuristic determination of requirements
Based on subjective estimates of the logistics manager
Which different goods can be distinguished within the material management?
1) raw material
2) purchased parts
3) auxiliary material
4) operating supply items
5) trading goods
6) operating resources
7) services
Which costs influence the optimum order quality?
1) procurement costs
1. 1) cost of external procurement
- ordering costs
- discount, rebate, allowance
- additional costs of suboptimal order quality
1. 2) cost of in-house production
- order processing costs
- set-up costs
- additional costs of suboptimal lot sizes
2) storage costs
- labor costs
- operating costs
- control costs
How is the most cost-effective order quantity calculates (incl. derivation and legend!) ad which assumption of the Andler-Model are necessary?
K'(m) = 0 -> m_opt = sqrt((2*r*c_p)/c_s)) m: order quantity r: required quantity per period c_p: coefficient of procurement costs c_s: coefficient of storage costs
Assumption of Andler:
1) material requirements of the total period are fixed and comply with the order quantity
2) the total order quantity has to be divided to equal order quantity sizes
3) continuous outward stock movements with equal lot size
4) no supply bottlenecks and no restrictions of stocking and factoring
5) no safety stock because of no time lag between stock withdrawal of the last unit and reception
6) acquisition prices are defined constant
Draft the storage model and term its operating figures!
Karteikarte 2e
Explain the area of conflict regarding the safety stock!
Minimal storage costs maximal readiness for delivery (minim deficiency)
