Key design choices what centers should we include how

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Key Design Choices: What centers should we include? How much space and capacity for each center? How to configure the space? Where should each be located? Relative location: can affect travel time, material handling cost, and communication Absolute location: can affect cost to change layout and customer reaction
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What is Layout Planning? (II) Four Major Layout Types: 1) Process layout: organizes resources around the process and groups workstations or departments according to function 2) Product (line) layout: dedicates resources to a product or closely related product family Challenge in designing product layouts- balance tasks, equalize the workload assigned to resources 3) Cellular Layout- Group technology): combines elements of both a flexible flow and line flow facility with both fabrication and assembly operations 4) Fixed position layout: product is fixed ion place. Resources come to the product. Minimizing number of times product must be moved
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Layout Types Foundry Milling machines Lathes Grinding Painting Drills Office Welding Forging (a) Process Layout ( job shop) (a) Process Layout ( job shop)
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Layout Types (b) Product (Line) Layout (b) Product (Line) Layout Station 1 Station 2 Station 3 Station 4
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Process Layout Vs Product Layout Process Layout Product Layout Product Mix Large & Dynamic Small & Stable Product Volume Low to Medium High Machine Type General/ Non- Dedicated Special/ Dedicated Flexibility High Low Work Flow Pattern Batch Flow/ Random Continuous, Linear Automation Low High Initial Cost Low High Variable Cost High Low Plan & Control Order Based/ Complex Flow Rate Based Leadtime Very Long Short WIP Level High Very Low MGT Concerns Scheduling, Leadtime, Costs Efficiency, Line Balancing
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Layout Design in Service Process Layout and Product Layout are also two major facility layout designs in Service operations. Some examples : Process Layout:/Product Layout: Some Specific Considerations in Service Layout Design: Must provide entryways to customer. Must provide waiting space for customers. Need separation of rooms for customer privacy.
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Process Layout Design Procedure 1. Collect Required Data: (Product Mix/Production Volume/….) 2. Determine the Number of Work Centers. 3. Determine Space Requirement for Each Work Center. 4. Examine Relationships among Work Centers based on: - Material Handling Costs - Supportive Factors ( Loading & Unloading/Closeness to Computer Center/……) - Specific Requirement. 5. Develop Layout Alternative Plans. 6.Evaluate Alternative Plans and Make Final Selection.
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Layout by Process (a) Original layout (a) Original layout Frozen foods Dry groceries Bread Vegetables Meats
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Layout by Process (b) Revised layout (b) Revised layout Frozen foods Dry groceries Bread Vegetables Meats
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Process Layout Design Methods 1.Small Size: Optimizing Techniques, (Linear Programming//Transportation Model/…) (N<10) 2.Medium Size Problems (Practical): Computerized Software Packages of Various Solution Heuristics.
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  • Summer '18
  • Jonh
  • Management, Production line, Work Station, Total Slack Time

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