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Lesson2 software process_contd2

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  • 1. 1
  • 2. SDLC (Software Development LifeCycle) Logical Process) Phase ) Planning Phase) Analysis Phase) Design Phase) Implementation Phase ) Steps ) 2
  • 3. SDLC Waterfall V-Shaped Spiral Increment Agile 3
  • 4. Waterfall model • SDLC Waterfall • • 4
  • 5. …………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………… Waterfall model  Waterfall Model  Waterfall Model   Product Product  5
  • 6. Waterfall , Milestones Sets requirements stability (plan, staff, track)
  • 7. Waterfall Module
  • 8. Waterfall Model User User platform platform
  • 9. Adapted Waterfall modelSDLC Adapted Wayerfallwaterfall 9
  • 10. V-Shaped model  Model (verification) (validation)  10
  • 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. V-Shaped model Verification Validation 12
  • 13. V-Shaped Model Requirement (Risk Management) 13
  • 14. V-shaped Model (high reliability) hospital patient control applications Requirement 14
  • 15. Spiral model 15
  • 16. Spiral model spiral       16
  • 17. Spiral model    17
  • 18. Spiral model    18
  • 19. Spiral model 19
  • 20. Spiral model model risk-driven    Prototype  product 20
  • 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. Iterative and Incremental Model SDLC ( ) ( 22
  • 23. Agile Process Agile Agile Process Agile RAD . . 1970 . . 1990 23
  • 24. Agile Process  Agile 4 [Agile Alliance 2001] 1. 2. 3. 24
  • 25. Agile ProcessAgile  XP  ASD  Scrum  DSDM  Crystal  FDD  AM 25
  • 26. Extreme Programming(XP) Kent Beck . . 1999 Iteration and Incremental 4 26
  • 27. Extreme Programming(XP) User Story Simple Design Iteration Spike Solution Plan : Prototype Plannin Design) g) Release SoftwareIncrement Testing ) Coding) Unit Test Pair Continuous Programming integration Unit Test Acceptance Continuous Test Integrations 27
  • 28. Adaptive SoftwareDevelopment (ASD) - Jim Highsmith 28
  • 29. Adaptive Software Development (ASD)Adaptive cycle planning Requirements gathering Mission statement Speculat Collabor JAD Mini-specs Project constraints ion ation Basicrequirements 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. Adaptive Software Development (ASD) Speculation   Collaboration  30
  • 31. Adaptive SoftwareDevelopment (ASD) Collaboration      31
  • 32. Adaptive Software Development (ASD) Learning   3  Focus Groups /  Formal Technical Review)  Postmortems 32
  • 33. ScrumScrum Jeff Sutherland 1990 Schwaber Beedle 33
  • 34. Scrum Scrum     34
  • 35. Scrum Scrum      Sprint) 35
  • 36. Dynamic System DevelopmentMethod (DSDM) DSDM DSDM => 80% 20% DSDM 80% 36
  • 37. Dynamic System DevelopmentMethod (DSDM) DSDM  Feasibility Study  Business Study  Functional Model Iteration 37
  • 38. Dynamic System DevelopmentMethod (DSDM)  DSDM  Design and Build Iteration  Implementation)   38
  • 39. Crystal Alistair Cockburn Jim Highsmith Crystal    Cockburn Highsmith 39
  • 40. Crystal Crystal   Crystal Yellow, Crystal Orange  Crystal Family  40
  • 41. Crystal Crystal o “Human-powered” o “Ultralight” o “Stretch-to-fit” 41
  • 42. Development (FDD) Peter Coad Stephen Palmer John Felsing Coad 42
  • 43. Feature DrivenDevelopment (FDD)    FDD  43
  • 44. Agile Modeling (AM)    Scott Amble Agile  Agile Agile 44
  • 45. Agile Modeling (AM) AM  Model with a purpose  Use multiple models  Travel light  Content is more important than representation 45
  • 46. CMM ( )    Process Improvement  Total Quality Management (TQM)  Business Process Redesign (BPR)  Continuous Process Improvement (CPI)  Six Sigma 46
  • 47. CMM( ) CapabilityMaturity Model : CMM  SW-CMM (Software Capability Maturity Model)  Software Engineering Institute : SEI  47
  • 48.  CapabilityMaturity Model : CMM 5 Optimizing 4 Managed 3 Defined 2 Repeatable 1 Initial 48
  • 49.  CapabilityMaturity Model : CMM  1 The initial Level   49
  • 50.  CapabilityMaturity Model : CMM  2 The Repeatable Level   50
  • 51.  CapabilityMaturity Model : CMM  3 The Defined Level  2  Documented and Integrated Process 51
  • 52.  CapabilityMaturity Model : CMM  4 The Managed Level  Standard  52
  • 53.  CapabilityMaturity Model : CMM  5 The Optimizing Level  Learning Organization   Technology 53
  • 54.  Capability Maturity Model :CMM  Key Process Area (KPA)  KPA 54
  • 55. CMM CMM KPA1 (Initial)2 (Repeatable)3 (Defined) 55
  • 56. CMM CMM KPA4 (Managed)5 (Optimizing) 56
  • 57.  CapabilityMaturity Model : CMM  KPA CMM       57
  • 58.  Tool      Project Management Application ( Microsoft Project)  Word Processor/Text Editor  Integrated Development Environment (IDE)  Drawing/Graphics Application ( Rational 58
  • 59.  CASE Tools CASE (Computer-Aided Software Engineering)  CASE Tool  Design Editor  Data Dictionary  Compiler  Debugger) 59
  • 60.  CASE Tools  CASE  CASE Repository  CASE CASE  CASE 60
  • 61.  CASE  CASE Tool  CASE Tools (Functional Perspective)  Process Perspective  CASE 61
  • 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.  CASE 1. Software Requirement Tool 2 - Requirement Modeling Tools - Requirement Traceability Tools 63
  • 64.  CASE 2. Software Design Tools - - Rational Rose, EA 3. Software Construction Tools - - Program Editor - Compiler - Interpreter 64
  • 65.  CASE 4. Software Testing Tools - Testing Generation - Test Execution Framework - Test Evaluation Tools - Test Management 65
  • 66.  CASE 5. Software Maintenance Tools 2 1. Comprehension Tools 2. Reengineering Tools 66
  • 67.  CASE 7. Software Engineering Management Tools - Project Planning and Tracking - Risk Management - Measurement 8. Software Quality Tools) - Inspection Tools
  • 68. CASE ToolsIntegrated CASE Environment - CASE Tool - CASE Tool Meta Tools - Editor
  • 69. Methodologies-- 1. Structured Approach 2. Object – orientedApproach 3. Heuristic Methodology
  • 70. 1. StructuredApproach)  Sub-System)   Structured System Analysis 70
  • 71. 1. StructuredApproach)     71
  • 72. - 72
  • 73. 2. Object – OrientedApproach)  Grady Booch, James Rumbaugh Ivar Jacobson  Object-Oriented System Analysis and Design)  Object) 73
  • 74. 2. Object – OrientedApproach)     74
  • 75. ID Invoice objecNo.AddressA/C No. tAmount AttribComputer valueof goods utesComputerdiscountComputer Ad.Charge MethComputer odsInvoice Amount 75
  • 76. 3. Heuristic Methodology - InformalMethod - - Methodology - Structured Methodology/Approach - Object-oriented Methodology 76
  • 77. 4. Formal Methodology - 2 1.Formal Specification 2. FormalVerification 77
  • 78. - Agile- Extreme Programming (XP) Agile 4 - 78
  • 79. -Adaptive Software Development (ASD) - - - ASD 79
  • 80. - Dynamic Systems Development Method(DSDM) - - - - DSDM 80
  • 81. - Scrum ( -- Crystal ( - Agile - 81
  • 82. - Feature Driven Development (FDD) - Agile - - - FDD- Agile Modeling (AM) - - 82
  • 83. - Process - Software Process SoftwareDevelopment Process - - (Software 83
  • 84. - ProcessImprovement - SEICapability Maturity Model : CMM 84