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.