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Operation Managements role and
responsibility
to ensure that all elements of the organization are working in harmony (synchronously) towards the goalto emphasize total system performance and not local measures such as labor or machine utilization or efficiency TERM 2
Matchstick game
DEFINITION 2 when activities take variable amounts of time we can't find the bottleneckthe average capacity of each activity is less than the average capacity of the process. may not know what it is exactlyaverage capacity of the process is the numbers divided by two so for dice it is 3. TERM 3
variation?
DEFINITION 3 implies the need to balance the flow through the process rather than the capacities of the activities TERM 4
Balanced capacity
DEFINITION 4 can be a bad the bottleneck is indeterminable TERM 5
Batch Sizes
DEFINITION 5 smaller flow at non bottleneck activities to keep flow balanced in the system
Bottleneck ideas
quality control earlyoutsourceoff line set upsensure all items need itload for max utilization TERM 7
Process Batch Size
DEFINITION 7 infinite for an assembly line because it is continuous TERM 8
Transfer Batch Size
DEFINITION 8 one because one unit is moved at a time TERM 9
Production Scheduling Rules
DEFINITION 9 Do not balance capacity; balance flow utilization of a non bottleneck resource is not determined by its own potential but by other system constraints Utilization and activation of resources are not the same An hour lost at the bottleneck is lost for the whole system an hour saved at a non bottleneck is a mirage transfer batch and process batch size are different TERM 10
Process
Synchronization
DEFINITION 10 A-wait-B-wait-Cby eliminating one constraint another may pop up.by working before ready then re-work may occurlean synchronization (coordinate in time) external process to ensure right information in the right place at the right time.
Dot Chart
overlay rows and columns to optimize. reveal and eliminate the disconnectstacit and local knowledge becomes explicit and shared TERM 17
Spear and Bowens (4 rules)
DEFINITION 17 *****all work shall be highly specified as to content, sequence, timing, and outcome*****every customer-supplier connection must be direct, and there must be an unambiguous yes-or-no way to send requests and receive responses*****The pathway for every product and service must be simple and direct*****Any improvement must be made in accordance with the scientific method, under the guidance of a teacher, at the lowest possible level in the organization TERM 18
Each arrow in a process flow chart
DEFINITION 18 implies a supplier-customer relationshipimplies the flow of one or more work products TERM 19
MOE
DEFINITION 19 measure of effectiveness and implies a requirement which is a threshold of acceptability TERM 20
Promise Based Management
DEFINITION 20 commitment based management. Promises should be public and realisticpredefined network of activities, standard commitments, standard process model
