SRS stands for Software Requirement Specifications. It is the basis to establish an agreement between customers and suppliers about what to expect from software’s performance and what not to expect from it.
The waterfall model is a sequential software creation process, in which progress is seen as flowing steadily downwards through the phases of requirements analysis, design, implementation, testing (validation), integration, and maintenance.
The following phases are followed in order:
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Requirements specification
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Design
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Development
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Integration
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Testing and debugging
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Maintenance
To follow the waterfall model, one proceeds from one phase to the next in a purely sequential manner from ‘Requirements specification’ to ‘Maintenance’, however there are various modified waterfall models that may include slight or major variations upon this process.
