Operations and Supply Chain Management

Ch6ToolsofTQM.pptx

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BSYS841 Operations & SCM

Week 3 Quality Management

Part III Tools of TQM

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Seven T Q M Tools

Three tools for generating ideas

Check Sheet

Scatter Diagram

Cause-and-Effect Diagram

Two tools to organize the data

Pareto Chart

Flowchart (Process Diagram)

Two tools for identifying problems

Histogram

Statistical process control chart

Three tools for generating ideas (1 of 3)

(a) Check Sheet: An organized method of recording data

(b) Scatter Diagram: A graph of the value of one variable vs. another variable

Three tools for generating ideas (2 of 3)

Three tools for generating ideas (3 of 3)

Fishbone example of a basketball quality control problem

Cause-and-Effect Diagrams

Figure 6.7

Two tools to organize the data (1 of 2)

(d) Pareto Chart: A graph to identify and plot problems or defects in descending order of frequency

Two tools to organize the data (2 of 2)

(e) Flowchart (Process Diagram): A chart that describes the steps in a process

Two tools for identifying problems (1 of 2)

(f) Histogram: A distribution showing the frequency of occurrences of a variable

Two tools for identifying problems (2 of 2)

(g) Statistical Process Control Chart: A chart with time on the horizontal axis to plot values of a statistic

Pareto Charts

Flow Charts

MRI (Magnetic Resonance Imaging) Flowchart

Physician schedules MRI

Patient taken to MRI

Patient signs in

Patient is prepped

Technician carries out MRI

Technician inspects film

If unsatisfactory, repeat

Patient taken back to room

MRI read by radiologist

MRI report transferred to physician

Patient and physician discuss

Statistical Process Control (S P C)

Uses statistics and control charts to tell when to take corrective action

Drives process improvement

Four key steps

Measure the process

When a change is indicated, find the assignable cause

Eliminate or incorporate the cause

Restart the revised process

Control Charts

Figure 6.8