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Spiral model in Software Engineering

 Ṣpiral model-:

Process is represented as a spiral rather than as a sequence of activities with backtracking.

Each loop in the spiral represents a phase in the process.

No fixed phases such as specification or design -loop in the spiral are chosen depending on what is required.
 Risks are explicitly assessed and resolved throughout the process.



  •  risk driven process model
  •  used for generating software projects
  •  alternate solution is provided if any risk found in the risk analysis then alternate solutions are suggested and implemented
  • combination of proto type and sequential model or waterfall model
  •  one iteration all activities are done for large projects the output is small.
>>>>>>> 
  1. Planning
  1. Modelling
  1. Construction
  1. Deployment
  1. Communication
 
Advantages
  • Reduce high amount of risk
  • Good for large and critical projects
  • Strong  approval and documentation control
  • The software is produced early in the life cycle
 
 
 

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