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TOTAL QUALITY TOTAL QUALITY MANAGEMENTMANAGEMENT
TOOLS OF TQM (2)TOOLS OF TQM (2)
Abdulla Jassim AbdullaAbdulla Jassim Abdulla
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The Seven Tools oF TQMThe Seven Tools oF TQM
• FlowchartsFlowcharts
• Cause and effect Diagram (Ishikawa)Cause and effect Diagram (Ishikawa)
• Check sheetsCheck sheets
• Pareto ChartsPareto Charts
• HistogramsHistograms
• Run Charts and Control chartsRun Charts and Control charts
• Scatterplots and correlation Scatterplots and correlation AnalysisAnalysis
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Pareto ChartsPareto Charts
• Named after Wilfredo Pareto.Named after Wilfredo Pareto.
• Prioritize problemsPrioritize problems
• Categorical DataCategorical Data
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HistogramsHistograms
• Process VariabilityProcess Variability
• Continuous DataContinuous Data
• Factors important when investigating Factors important when investigating Histograms:Histograms:
VariationsVariations LocationLocation ShapeShape Unusual featuresUnusual features
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Bar chartsBar charts
• Graphical summary of dataGraphical summary of data
• Display group differencesDisplay group differences
• Ordinal dataOrdinal data
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Unusual Features in Unusual Features in HistogramsHistograms
• Bimodal histogramsBimodal histograms
• Cut-off DistributionCut-off Distribution
• Combed DistributionCombed Distribution
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Summary StatisticsSummary Statistics
• MeanMean
• MedianMedian
• Standard DeviationsStandard Deviations
• VarianceVariance
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Run ChartsRun Charts
• Variation (Trends) over time.Variation (Trends) over time.
• Data Could be Means, counts or Data Could be Means, counts or proportions collected over time.proportions collected over time.