MGO 302 Skeleton Notes 2

MGO 302 Skeleton Notes 2 - MGO 302 Operations Management NC...

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MGO 302 Operations Management © NC Simpson 2010 Note Page 47 Facility Layout FACILITY LAYOUT TYPES Product * Process * Fixed Position * Hybrid PRODUCT LAYOUT - products or customers move from workstation to workstation in a continuous, unchanging pattern. * Why would you do this? (Advantages) * What should you be careful of ? (Disadvantages) * What is the major design issue ?
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MGO 302 Operations Management © NC Simpson 2010 Note Page 48 Facility Layout FACILITY LAYOUT TYPES Product * Process * Fixed Position * Hybrid PROCESS LAYOUT - products or customers move between workstations as needed, and not necessarily in the same sequence. * Why would you do this? (Advantages) * What should you be careful of ? (Disadvantages) * What is the major design issue ?
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MGO 302 Operations Management © NC Simpson 2010 Note Page 49 Facility Layout FACILITY LAYOUT TYPES Product * Process * Fixed Position * Hybrid FIXED POSITION LAYOUT - the product or customer doesn’t move. Workers, materials, and machinery move instead. * Why would you do this? (Advantages) * What should you be careful of ? (Disadvantages) * What is the major design issue ?
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MGO 302 Operations Management © NC Simpson 2010 Note Page 50 Facility Layout FACILITY LAYOUT TYPES Product * Process * Fixed Position * Hybrid HYBRID - (also known as CELLULAR LAYOUT or GROUP TECHNOLOGY ) products or customers are divided up into “families” (groups of products with similar requirements), and each “family” is produced in its own small product or process layout known as a “cell”. * Why would you do this? (Advantages) * What should you be careful of ? (Disadvantages) * What is the major design issue ?
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MGO 302 Operations Management © NC Simpson 2010 Note Page 51 Facility Layout Before we start line balancing. .. Important Concept: CYCLE TIME cycle time - the maximum time allowed at each workstation to perform its assigned tasks. Station 1 Station 2 Station 3 This means that the cycle time is also. ..
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MGO 302 Operations Management © NC Simpson 2010 Note Page 52 Facility Layout Before we start line balancing. .. Important Concept: CYCLE TIME Which cycle time do we choose? minimum maximum Formula for “our” cycle time: CT = OT / D
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MGO 302 Operations Management © NC Simpson 2010 Note Page 53 Facility Layout TO BALANCE AN ASSEMBLY LINE STEP ONE: Determine its cycle time. STEP TWO: Draw a precedence diagram. STEP THREE: Assign tasks to workstations. STEP FOUR: Compute idle time and efficiency.
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MGO 302 Operations Management © NC Simpson 2010 Note Page 54 Facility Layout EXAMPLE PROBLEM Immediate Task Duration (minutes) Predecessor(s) a 0.1 none b 0.2 a c 0.1 b d 0.2 none e 0.6 d f 0.6 c g 0.5 e,f Step One: CYCLE TIME Step Two: Precedence Diagram
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MGO 302 Operations Management © NC Simpson 2010 Note Page 55 Facility Layout Step Three: WORKSTATION ASSIGNMENTS Time-out: Perhaps we wish we knew the “theoretical minimum” number of workstations before we start. Time-out:
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This note was uploaded on 08/30/2011 for the course MGO 302 taught by Professor Hancock during the Fall '08 term at SUNY Buffalo.

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MGO 302 Skeleton Notes 2 - MGO 302 Operations Management NC...

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