SDLC: Iterative Model

In the Iterative Model , the development starts with a small set of requirements. Once this set of requirements is completed , then a new set of requirements is implemented again . This process of implementation goes on iteratively until unless the complete set of requirements is not implemented.

In each iteration , we design , test & deploy . Every iteration has a fixed time in which it should be completed .

Here’s the diagram , representing iterations as ‘Build 1’ , ‘Build 2’ and ‘Build 3’:

Each Build (iteration) has to go through Design , Development , Testing & Deployment (Implementation as per the diagram)

Check out my blog SDLC to get the gist of the process.

This model is best fit for project which are:

Requirements are clearly defined

Client wants working model at each iteration

New technologies are implemented & learnt on the way

Not availability of highly skilled team

Highly risky project

A working model is ready in end of every iteration

Feedback of client can be taken at each iteration

Supports changing requirements

Risk management is easy . Highly risky part is done first

Suitable for large & critical projects

Parallel development is possible

Not suitable for smaller projects

More resources are required

More attention of management is required

Management complexity is more

End of project is not defined , which can be risky

System design or architecture issues may arise because all requirements is not gathered at the beginning

So far, we have discussed the Iterative model, it’s use cases, pros & cons.

More information on Waterfall Model is in my other blog’s, here’s the link
WaterFall Model: https://dev.to/rishabhraghwendra/sdlc-waterfall-model-307n

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Thanks for reading
Written with ❤️ & passion 🔥 by Rishabh Raghwendra