COMM 398 Study Guide - Final Guide: Safety Stock, Carrying Cost, Process Flow Diagram
Document Summary
Operation:deliverying value by proper execution(decipline,major job of business leader, core element) om. Design/improve process tactical issues on the operations frontier strategic issues correct place on frontier. Little"s (cid:3007)(cid:3039)(cid:3042)(cid:3050) (cid:3021)(cid:3040)(cid:3032)=(cid:3019) process flow design good (cid:2869) Delay=variability*utilization*service time(avg) decrease s=> increase capacity decreae u=> increase can reduce throughput variability w/ no buffer some input might get lost variability w/ buffer increase in. = (cid:644)/(cid:645) c_a cv of inter arrival times c_s cv of service times min utilization good idea w/o variability & very tool to understand process and make it visible process mapping creating process flow diagram flow units. Items that flow in system activities transform steps resources performs activity buffer storage units for flow units rectangular activity, task, operation triangle buffer: queue/inventory diamond decision point. Arrow flow of material unit load time resource works on unit shortening non-bottleneck decreases flow time but does not affect capacity starvation forced idleness of resource due to lack of input flow time.
