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Quality Mgt (plan quality mgt (TT: seven basic quality tools (Cause-and…

- - - - cost of conformance
        
        prevention costs (build a quality product)
        training (-> improve qualtiy)
        doc processes
        equipment
        time to do it right
        
        appraisal costs (assess the quality)
        testing
        destructive testing loss
        inspections
      - cost of nonconformance
        (not spend $)
        
        internal failure costs (failures found by the project
        rework
        scrap
        
        external failure costs (failures found by the customer)
        liabilities (consequence that external parties to claim liability)
        warranty work
        lost business
        
        Q: what is the term?
        Q: what is the term for training, testing and liability? A: COQ
  - - - helps stimulate thinking, organizes thoughts and generates discussion
        Head = problem
        
        Q; finish node of fish-bone diagram?
        A: cause / potential cause (best ans).
        major cause (2nd best ans),
        actionable root cause (fair ans).
        root cause (not ideal but OK cuz fish bone has no root
    - - specific type of histogram
        rank ordering (cum frequency)
        Pareto's Law (80/20 rule)
        
        Q: which tool can perform ordering? A: Pareto Diagram
    - - Out of control - Rules of Seven = 7 run rule = Run of 7
        consecutive 7 points downtrend/uptrend => out of control
        consecutive 7 points over and below mean => out of control
        irrelevant to sample size
        assignable causes (investigation) if rule of 7, points outside control ranges (UCL/LCL), or points lie on control limits (UCL/LCL) - not out of control but need investigation
        non-random data within upper control and lower control limits with increasing/decreasing trend
        non-random cluster points outside the mean
        
        Q: 10 data points. UCL and LCL in Eng text
        A: to draw chart to conclude if out of control
        Q: chart any out of control
        A: check if any 7-run rules
        Q: if all data points imply out of control
        A: assign someone to investigate
    - - relationship between 2 variables