class 4 and 5

class 4 and 5 - 11 Operations Management Class 1: Course...

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Unformatted text preview: 11 Operations Management Class 1: Course Overview and Introduction to Processes Class 2: House building game and process design Class 3: Process Analysis Class 4 and 5: Process Analysis Capacity Analysis Inventory Build-up Littles Law 22 Summary of Class 3 Process mapping basics Key steps in process mapping Get feedback and validate maps Process analysis basics Capacity rate: the maximum rate at which units can flow through a process Bottleneck: The resource with the lowest capacity rate in a process It determines the capacity rate of the process Flow Time or Throughput Time: Length of time a unit spends in system In practice many firms use the terms cycle time to refer to flow time 33 Learning Objectives: Class 4 and 5 Discuss the Kristens cookie assignment More on process analysis Process analysis with multiple flow units Utilization and utilization profiles Inventory Build-up diagram Littles Law 44 Linear Flow chart Mix Load Bake Unload Cool Pack Pay Spoon Hold 55 Swim-lane (deployment) flowchart Resources Activities You Roommate Oven Oven Roommate Spoo n Load Bake Cool Pack Mix Pay 66 Kristens Cookie questions 77 Rest of Class 4 and 5 More on process analysis Process analysis with multiple flow units Utilization and utilization profiles Inventory Build-up diagram Littles Law 88 Process analysis with multiple flow units Resource Unit Load (minutes/unit) Product A Product B Product C 1 2.5 2.5 2.5 2 1.5 2 2.5 3 12 4 3 3 5 3 3 3 If you are producing only Product A, what is capacity rate of the process (per hour)? Which resource is the bottleneck? If you have to produce 1 unit of Product A, 2 units of Product B and 2 units of Product C every hour, what is your capacity rate? Which resource is the bottleneck? 99 Process analysis with multiple flow units Resource Unit Load (minutes/unit) Product A Product B Product C 1A + 2B + 2C 1 2.5 2.5 2.5 12.5 2 1.5 2 2.5 10.5 3 12 12 4 3 3 12 5 3 3 3 15 When multiple flow units go through a process, the product mix needs to be considered while determining the unit load and the capacity The bottleneck depends on the product mix 1010 Process analysis with multiple flow units Flow diagrams are not easy to draw How to identify bottleneck? Count the total amount of work per resource (also known as the unit load) When multiple flow units go through a process, the product mix needs to be considered while determining capacity The bottleneck depends on the product mix The bottlenecks can move as the product mix changes 1111 Theoretical versus effective capacity Some capacity is lost due to machine maintenance, machine set-ups, etc....
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class 4 and 5 - 11 Operations Management Class 1: Course...

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