Six-Sigma8 - Measure Phase 1 Measure Phase Elements Perform...

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1 Measure Phase
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2 Measure Phase Elements Perform Capability Analysis Identify Measurement and Variation Determine Data Type Develop Data Collection Plan Perform Measurement System Analysis Perform Data Collection
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3 Measure: Body of Knowledge Needed Process analysis and documentation Lean tools for measure and characterize the process Collecting and summarize Data Data Statistics Probability Statistics Measurement System Analysis Process Capability Analysis
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4 Process Analysis and documentation Tools: Flow chart, process maps, written procedures and work instructions Process Input and Output: Cause and effect matrix, cause and effect diagram
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5 Process Inputs and Outputs Before a process can be improved, it must first be measured. This is accomplished by identifying process input variables and process output variables, and documenting their relationships through cause and effect diagrams, relational matrices, flowcharts and other similar tools. Key process variables should be measured, using metrics like percent defective, operation costs, elapsed time, backlog quantity, and documentation errors. The process owners are the best source for identification of the critical variables. Once identified, the relationships between the variables are depicted using a tool such as cause and effect diagrams.
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6 Benefits of Process Mapping Provides a visual representation of the process Allows flexibility in levels Demands verification and objectivity – Hands-on exposure to local activities Identifies rework loops and redundancies Gives insight into bottlenecks, cycle times and inventory Serves as a training and orientation tool Identifies non-value added steps Helps identify when and where to collect data Identifies where different work teams use different processes
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7 SIPOC process map is designed to be high level process view with 4-7 steps displayed Simon suggests the following steps for the developing of a SIPOC diagram: 1. Have the team create the process map. A meeting room with wall space can be used to display the process steps. Cards can be used to map out the process before finalizing a map. 2. The process may have four to five key steps. How is the raw material or product transformed? 3. List the outputs of the process. What is the end result, product/service of this process? 4. List the customers of the output of the process. Who is the user of the end result of the process? 5. List the inputs of the process. Where do the materials come from? 6. List the suppliers of the process. Who are the key suppliers? 7. As an optional step, identify some preliminary requirements of the customers. 8. Involve the team leader, champion, and other stakeholders for verification of the project.
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8 SIPOC Process Mapping Model Process Map Process X X X P S C _____ _____ _____ _____ _____ _____ _____ _____ Inputs Outputs Feedback Feedback
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9 Flow Charts A flow chart or process map is useful to both people familiar with a process and to those people that have a need to understand a process, such as an auditor. A flow chart can
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This note was uploaded on 05/09/2010 for the course IE IE7610 taught by Professor Dr.kaiyang during the Winter '10 term at Wayne State University.

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Six-Sigma8 - Measure Phase 1 Measure Phase Elements Perform...

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