Linear processes are fixed before the start of a phase with scheduled timelines and results. A fixed sequence of stages is followed from requirement understanding to development planning, design, implementation, testing, deployment, and support and maintenance. Waterfall Development Model allows a very swift flow.
Step 1: Designing
Right from conceptualization of process flow to operation and maintenance, every stage of the complete project is analyzed, and each and every operational procedure is defined. A simple, easy to understand document is generated accordingly.
Step 2: Documentation
All processes are documented in detail.
Step 3: Redo
Working on a totally original product, everything is done twice before the final version of the project is delivered at the clients’ system.
Step 4: Plan, Control, Monitor – Testing
The greatest challenge (and risk), in terms of time and money, is testing, as it happens at the last stage when it is not possible to turn back.
Step 5: Client
Finally, the client gets involved for the closure of the project.
Reviews after each process decide the quality assurance and changes in requirement. This model is used when the requirements, total costs involved, the resources required and the overall specifications of the project are clearly defined. A schedule with deadlines for each stage of development is set up for final delivery of projects to clients on time.
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