TOTAL QUALITY TOTAL QUALITY MANAGEMENTMANAGEMENT

TOOLS OF TQM (2)TOOLS OF TQM (2)

Abdulla Jassim AbdullaAbdulla Jassim Abdulla

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

Pareto ChartsPareto Charts

• Named after Wilfredo Pareto.Named after Wilfredo Pareto.

• Prioritize problemsPrioritize problems

• Categorical DataCategorical Data

HistogramsHistograms

• Process VariabilityProcess Variability

• Continuous DataContinuous Data

• Factors important when investigating Factors important when investigating Histograms:Histograms:

VariationsVariations LocationLocation ShapeShape Unusual featuresUnusual features

Bar chartsBar charts

• Graphical summary of dataGraphical summary of data

• Display group differencesDisplay group differences

• Ordinal dataOrdinal data

Unusual Features in Unusual Features in HistogramsHistograms

• Bimodal histogramsBimodal histograms

• Cut-off DistributionCut-off Distribution

• Combed DistributionCombed Distribution

Summary StatisticsSummary Statistics

• MeanMean

• MedianMedian

• Standard DeviationsStandard Deviations

• VarianceVariance

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.