Process Analysis and Line Balancing
Process Analysis and Line Balancing
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This 3 page Class Notes was uploaded by Emily McIlhattan on Wednesday February 11, 2015. The Class Notes belongs to a course at a university taught by a professor in Fall. Since its upload, it has received 64 views.
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Date Created: 02/11/15
MGMT 361 Process Analysis 2 Last Lecture I What is a process ll How to analyze a process Current Lecture Outline L Recap a Draw a Process Flowchart b Determine Capacity for each resource in the process and identify the bottleneck c Calculate relevant process measures d Consider changes to improve system performances Current Lecture l Recap The Process View i Inputs used in the process and transformed into outputs eg raw materials ii Outputs coming out of the process iii Resources transform inputs into outputs but are not incorporated into the outputs labor capital iv WIP inventories kept in process b Process Capacity i Resource Capacity how many units a resource can produce in a given time 1 In the face game how many circles can Student 1 draw in 1 minute ii Process Capacity how many units the entire process can produce in a given time 1 How many faces can be draw in 1 minute c Capacity of a resource maximum amount of units the resource can produce in a given time 1Activity Time i Activity Time for one resource time it takes to process one unit by one resource 1 Be careful with time unit and unit for capacity ii If the toaster needs 2 minutes to heat a sub how many subs can be heated in 1 hour iii Reverse if Toyota can make 1000 cars in a month how long does it take to make a car ll Process Capacity a Bottleneck resource with smallest capacity or the longest processing time b Process Cap how much the process can produce in a given time i Determined by bottleneck capacity Process capacity mincapacity of res 1 capacity of res kbottleneck resource capacity Think of the entire process as a pipe the amount of water that flows through the pipe is determined by the narrowest part Process Designed cycle time designed CT designed cycle time 1 process capacity Measures how fast can a product be quotpop upquot from the process this will be equal to the task time for process capacity Labor Cost and Line Balancing Last Lecture Process Analysis Current Lecture Outline Way to improve the process capacity Multiple resources at one stage III The last stage IV Line Balancing Current Lecture Ways to improve the process capacity a Task 2 needs the most help it s the most complicated and takes most time ll Multiple Resources in the stage a Calculate capacity for each resource in this stage b Get the stage capacity i Adding the capacity from each resource together c Compare each stage capacity and nd out the bottleneck i In class Ex revised face game where two people deal with task 2 you end up adding the two individual capacities together for a single overa capacity ii This can cause the bottleneck to shift to a different change depending on how the capacities work out IV VI Stage capacity different from the process capacity stage cycle time is different from process capacity a 1stage capacity i For stage with single resource CT activity time ii Do NOT add or average to get the stage CT Line balancing increase the process capacity with the same number of workers by reallocating tasks from bottleneck resources to nonbottleneck resources Grouping tasks so that the activity time for each resource will be more or less the same balanced Performance measures related to labor cost a DLC Total wagesprocess capacity i ldle time for one worker CT activity time of the worker 1 ldle time for multiworker in a stage