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Technische Universitt Mnchen Software Quality Management Dr. Stefan Wagner Technische Universitt Mnchen Garching 9 July 2010 1 Last QOT: What is the difference between validation and verification? "Verification: product/code


  1. Technische Universität München Software Quality Management Dr. Stefan Wagner Technische Universität München Garching 9 July 2010 1

  2. Last QOT: What is the difference between validation and verification? "Verification: product/code against requirements Validation: stakeholder expectations against product" "Verification: Is the developed product right? Validation: Whether it is the right product" 2 Both explanations are possible. The first one is more concrete as it includes what is checked against what.

  3. Quality Approaches assurance planning 3 Review of last week's lecture. Upper picture by Ulrik De Wachter Lower picture by Trine de Florie

  4. Metrics and Basics Product Quality Measurement Certifi- Quality Process cation Quality Management 4 We are in the part "Quality Management".

  5. Quality management methods 5 We will discuss a set of methods that are used in quality management.

  6. What can go wrong in your project? 6

  7. Risk management 7 Risk management is a way to thing about potential problems in your project in a structured way.

  8. Risk management Risk assessment Risk control Risk Risk mgmt. identification planning Risk Risk analysis resolution Risk Risk prioritisation monitoring 8 It consists of the two parts risk assessment and risk control.

  9. Risk identification • Checklists • Decision-driver analysis • Assumption analysis • Decomposition 9

  10. Risk analysis • Performance models • Cost models • Network analysis • Decision analysis • Quality-factor analysis 10

  11. Risk prioritisation • Risk exposure • Risk leverage • Compound risk reduction 11

  12. Risk management planning • Buying information • Risk avoidance • Risk transfer • Risk reduction • Risk element planning • Risk plan integration 12

  13. Risk resolution • Prototypes • Simulations • Benchmarks • Analyses • Staffing 13

  14. Risk monitoring • Milestone tracking • Top 10 tracking • Risk reassessment • Corrective action 14

  15. Top-3 risk item list for satellite experiment software Risk item Month Monthly ran ly ranking Risk resolution progress progress This Last No. of month Replacing sensor- 1 4 2 Top replacement control software candidate developer unavailable Target hardware 2 5 2 Procurement delivery delays procedural delays Sensor data 3 3 3 Action items to formats undefined software, sensor teams; due next month 15 This is an example from Boehm (1991) of a Top-3 list of risks.

  16. Group work: Expert + Puzzle • Quality management methods – Statistical process control – Six sigma – Balanced scorecards – Quality function deployment – Seven basic tools of quality • Each group works on one method • Read provided material individually • Discuss and design poster in group • Then form group puzzles and teach the others • Finally: reflection 16

  17. Statistical Six sigma Balanced Quality Seven process scorecards function basic control deployment tools 17

  18. Statistical Six sigma Balanced Quality Seven process scorecards function basic control deployment tools EG 1 EG 2 EG 3 EG 4 EG 5 18

  19. Statistical Six sigma Balanced Quality Seven process scorecards function basic control deployment tools EG 1 EG 2 EG 3 EG 4 EG 5 Puzzle 1 Puzzle 2 Puzzle 3 19

  20. 10 minutes Statistical Six sigma Balanced Quality Seven process scorecards function basic control deployment tools 25 minutes EG 1 EG 2 EG 3 EG 4 EG 5 25 minutes Puzzle 1 Puzzle 2 Puzzle 3 20

  21. 21

  22. 22 Statistical Process Control (SPC)

  23. 23 Six Sigma

  24. 24

  25. 25

  26. Quality management methods 26

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