Spiral model
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The document presents information on the Spiral Model software development process. It discusses that the Spiral Model combines elements of the prototype model and waterfall model. It involves dividing the process into task regions like customer communication, planning, risk analysis, engineering, and construction. Each task region results in further refinement through iterations of the spiral. The Spiral Model allows for risk analysis and adding new features throughout the process.
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Spiral model
- 1. Presentation on: Spiral Model Prepared by: Bina Gupta BIM 6th semester BIM Department HSM 09/23/14 1
- 2. Contents • Why Spiral model ? • Introduction • Phases • Advantages • Disadvantages • References 09/23/14 2
- 3. Why Spiral model??? 09/23/14 3
- 4. Why Spiral model??? 09/23/14 4
- 5. Why Spiral model??? 09/23/14 5
- 6. Why Spiral model??? 09/23/14 6
- 7. Introduction • The Spiral Model is a type of software development model which was first proposed by Boehm. Dr. Barry W. Boehm. TRW Professor of Software Engineering. Organization. University of Southern 09/23/14 California. 7
- 8. In this system development method, we combine the features of both, prototype model and waterfall model. 09/23/14 8
- 9. Introduction • In Spiral model we can arrange all the activities in the form of a spiral. • A spiral model is divided into number of framework activities, called task regions. • Typically, there are between three and six task regions 09/23/14 9
- 11. Introduction • Customer communication tasks required to establish effective communication between developer and customer. • Planning tasks required to define resources, timelines, and other project related information. 09/23/14 11
- 12. Introduction • Risk analysis tasks required to assess both technical and management risks. • Engineering tasks required to build one or more representations of the application. 09/23/14 12
- 13. Introduction • Construction and release tasks required to construct, test, install, and provide user support (e.g., documentation and training). • Customer evaluation tasks required to obtain customer feedback based on evaluation of the software representations 09/23/14 13
- 14. Phases of Spiral model 09/23/14 14
- 15. Phases of Spiral model 09/23/14 15
- 16. Phases of Spiral model 09/23/14 16
- 17. Phases of Spiral model 09/23/14 17
- 18. Phases of Spiral model 09/23/14 18
- 19. Advantages 1. High amount of risk analysis hence, avoidance of Risk is enhanced. 09/23/14 19
- 20. Advantages 2. Good for mission-critical projects. 09/23/14 20
- 21. Advantages 3. Strong approval and documentation control. 09/23/14 21
- 22. Advantages 4. Additional Functionality can be added at a later date. 09/23/14 22
- 23. Disadvantages 1. Can be a costly model to use. 09/23/14 23
- 24. Disadvantages 2. Risk analysis requires highly specific expertise. 09/23/14 24
- 25. Disadvantages 3. Project’s success is highly dependent on the risk analysis phase. 09/23/14 25
- 26. References • http://www.buzzle.com/articles/spiral-life-cycle-model. html • http://istqbexamcertification.com/what-is-spiral-model-advantages- disadvantages-and-when-to-use-it/ • http://www.technotrice.com/what-is-spiral-model-software- engineering/ • http://www.cavehill.uwi.edu/staff/eportfolios/paulwalcott/c ourses/comp2145/2009/spiralmodel.htm 09/23/14 26
- 27. Any questions 09/23/14 27
- 28. 09/23/14 28