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Lesson2 software process_contd2

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Lesson2 software process_contd2

  1. 1. 1
  2. 2. SDLC (Software Development Life Cycle)  Logical Process) Phase ) Planning Phase) Analysis Phase) Design Phase) Implementation Phase ) Steps ) 2
  3. 3. SDLC  Waterfall  V-Shaped  Spiral  Increment  Agile 3
  4. 4. Waterfall model • SDLC Waterfall • • 4
  5. 5. ………………………………………………………………………………………………………………………………………………………………… ………………………………………………………………………………………………………………………………………………………………… Waterfall model  Waterfall Model  Waterfall Model   Product Product  5
  6. 6. Waterfall  ,   Milestones  Sets requirements stability  (plan, staff, track) 
  7. 7. Waterfall      Module 
  8. 8. Waterfall Model  User   User  platform platform
  9. 9. Adapted Waterfall model SDLC Adapted Wayerfall waterfall 9
  10. 10. V-Shaped model  Model (verification) (validation)  10
  11. 11. V-Shaped model  Project and Requirements  Production, operation and Planning – maintenance –  System and acceptance  Product Requirements and testing – Specification Analysis – Software spec Software  Integration and Testing –  Architecture or High-Level Design – Module Software  Unit testing –  Detailed Design – module  Coding – Algorithm Software 11
  12. 12. V-Shaped model  Verification Validation    12
  13. 13. V-Shaped Model   Requirement  (Risk Management) 13
  14. 14. V-shaped Model  (high reliability) hospital patient control applications  Requirement 14
  15. 15. Spiral model 15
  16. 16. Spiral model  spiral       16
  17. 17. Spiral model     17
  18. 18. Spiral model     18
  19. 19. Spiral model   19
  20. 20. Spiral model  model risk-driven     Prototype  product 20
  21. 21. Iterative and Incremental Model Iteration1 Iteration2 Iteration3 Requirement1 Requirement2 Requirement3 SA SA SA SD SD SD Imp Imp Imp Op Op Op Built1 Built1 Built2 Built1 Built2 Built3 21
  22. 22. Iterative and Incremental Model   SDLC  ( ) ( 22
  23. 23. Agile Process  Agile  Agile Process Agile  RAD  . . 1970  . . 1990 23
  24. 24. Agile Process  Agile 4 [Agile Alliance 2001] 1. 2. 3. 24
  25. 25. Agile Process Agile  XP  ASD  Scrum  DSDM  Crystal  FDD  AM 25
  26. 26. Extreme Programming (XP)  Kent Beck  . . 1999  Iteration and Incremental   4 26
  27. 27. Extreme Programming (XP) User Story Simple Design Iteration Spike Solution Plan : Prototype Plannin Design) g) Release Software Increment Testing ) Coding) Unit Test Pair Continuous Programming integration Unit Test Acceptance Continuous Test Integrations 27
  28. 28. Adaptive Software Development (ASD)  - Jim Highsmith    28
  29. 29. Adaptive Software Development (ASD) Adaptive cycle planning Requirements gathering Mission statement Speculat Collabor JAD Mini-specs Project constraints ion ation Basic requirements Time-boxed release plan Release Software increment adjustments for subsequent Learning cycles Components implemented/tested Focus groups for feedback Formal technical reviews postmortems 29
  30. 30. Adaptive Software Development (ASD)  Speculation    Collaboration  30
  31. 31. Adaptive Software Development (ASD)  Collaboration      31
  32. 32. Adaptive Software Development (ASD)  Learning   3  Focus Groups /  Formal Technical Review)  Postmortems 32
  33. 33. Scrum Scrum Jeff Sutherland  1990  Schwaber Beedle 33
  34. 34. Scrum  Scrum     34
  35. 35. Scrum  Scrum       Sprint)  35
  36. 36. Dynamic System Development Method (DSDM)  DSDM   DSDM => 80% 20%  DSDM 80% 36
  37. 37. Dynamic System Development Method (DSDM)  DSDM  Feasibility Study  Business Study  Functional Model Iteration 37
  38. 38. Dynamic System Development Method (DSDM)  DSDM  Design and Build Iteration  Implementation)   38
  39. 39. Crystal  Alistair Cockburn Jim Highsmith  Crystal     Cockburn Highsmith 39
  40. 40. Crystal  Crystal   Crystal Yellow, Crystal Orange  Crystal Family  40
  41. 41. Crystal Crystal o “Human-powered” o “Ultralight” o “Stretch-to-fit” 41
  42. 42. Development (FDD)   Peter Coad   Stephen Palmer John Felsing Coad  42
  43. 43. Feature Driven Development (FDD)     FDD  43
  44. 44. Agile Modeling (AM)      Scott Amble Agile  Agile Agile 44
  45. 45. Agile Modeling (AM)  AM  Model with a purpose  Use multiple models  Travel light  Content is more important than representation 45
  46. 46. CMM ( )       Process Improvement   Total Quality Management (TQM)  Business Process Redesign (BPR)  Continuous Process Improvement (CPI)  Six Sigma 46
  47. 47. CMM( )  Capability Maturity Model : CMM  SW-CMM (Software Capability Maturity Model)  Software Engineering Institute : SEI  47
  48. 48.  Capability Maturity Model : CMM 5 Optimizing 4 Managed 3 Defined 2 Repeatable 1 Initial 48
  49. 49.  Capability Maturity Model : CMM  1 The initial Level   49
  50. 50.  Capability Maturity Model : CMM  2 The Repeatable Level   50
  51. 51.  Capability Maturity Model : CMM  3 The Defined Level  2  Documented and Integrated Process 51
  52. 52.  Capability Maturity Model : CMM  4 The Managed Level  Standard  52
  53. 53.  Capability Maturity Model : CMM  5 The Optimizing Level  Learning Organization   Technology 53
  54. 54.  Capability Maturity Model : CMM  Key Process Area (KPA)  KPA 54
  55. 55. CMM CMM KPA 1 (Initial) 2 (Repeatable) 3 (Defined) 55
  56. 56. CMM CMM KPA 4 (Managed) 5 (Optimizing) 56
  57. 57.  Capability Maturity Model : CMM  KPA CMM       57
  58. 58.  Tool      Project Management Application ( Microsoft Project)  Word Processor/Text Editor  Integrated Development Environment (IDE)  Drawing/Graphics Application ( Rational 58
  59. 59.  CASE Tools CASE (Computer-Aided Software Engineering)  CASE Tool  Design Editor  Data Dictionary  Compiler  Debugger) 59
  60. 60.  CASE Tools  CASE  CASE Repository  CASE CASE  CASE 60
  61. 61.  CASE  CASE Tool  CASE Tools (Functional Perspective)  Process Perspective  CASE 61
  62. 62.  CASE  CASE Tools 8 1. Software Requirement Tool 2. Software Design Tools 3. Software Construction Tools 4. Software Testing Tools 5. Software Maintenance Tools 6. Software Configuration Management Tools 62
  63. 63.  CASE 1. Software Requirement Tool 2 - Requirement Modeling Tools - Requirement Traceability Tools 63
  64. 64.  CASE 2. Software Design Tools - - Rational Rose, EA 3. Software Construction Tools - - Program Editor - Compiler - Interpreter 64
  65. 65.  CASE 4. Software Testing Tools - Testing Generation - Test Execution Framework - Test Evaluation Tools - Test Management 65
  66. 66.  CASE 5. Software Maintenance Tools 2 1. Comprehension Tools 2. Reengineering Tools 66
  67. 67.  CASE 7. Software Engineering Management Tools - Project Planning and Tracking - Risk Management - Measurement 8. Software Quality Tools) - Inspection Tools
  68. 68. CASE Tools Integrated CASE Environment - CASE Tool - CASE Tool Meta Tools - Editor
  69. 69. Methodologies - - 1. Structured Approach 2. Object – oriented Approach 3. Heuristic Methodology
  70. 70. 1. Structured Approach)  Sub-System)   Structured System Analysis 70
  71. 71. 1. Structured Approach)     71
  72. 72. - 72
  73. 73. 2. Object – Oriented Approach)  Grady Booch, James Rumbaugh Ivar Jacobson  Object-Oriented System Analysis and Design)  Object) 73
  74. 74. 2. Object – Oriented Approach)     74
  75. 75. ID Invoice objec No. Address A/C No. t Amount Attrib Computer value of goods utes Computer discount Computer Ad. Charge Meth Computer ods Invoice Amount 75
  76. 76. 3. Heuristic Methodology - Informal Method - - Methodology - Structured Methodology/Approach - Object-oriented Methodology 76
  77. 77. 4. Formal Methodology - 2 1. Formal Specification 2. Formal Verification 77
  78. 78. - Agile - Extreme Programming (XP) Agile 4 - 78
  79. 79. -Adaptive Software Development (ASD) - - - ASD 79
  80. 80. - Dynamic Systems Development Method (DSDM) - - - - DSDM 80
  81. 81. - Scrum ( - - Crystal ( - Agile - 81
  82. 82. - Feature Driven Development (FDD) - Agile - - - FDD - Agile Modeling (AM) - - 82
  83. 83. - Process - Software Process Software Development Process - - (Software 83
  84. 84. - Process Improvement - SEI Capability Maturity Model : CMM 84

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