The spiral model, also known as the spiral lifecycle model, is a systems development method (SDM) used in information technology (IT). This model of development combines the features of the prototyping model and the waterfall model of application development.
The spiral model is intended for large, expensive and complicated projects.
The spiral model is used most often in large projects. The US military has adopted the spiral model for its Future Combat Systems program.
Advantages of Spiral Model in Application Development:
- Estimates (budget, schedule, and so on.) get more realistic as work progresses, because important issues are discovered earlier.
- It is more able to cope with the (nearly inevitable) changes that software development generally entails.
- Software engineers (who can get restless with protracted design processes) can get their hands in and start working on a project earlier.
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