Question :
Explain the different phases involved in waterfall life cycle.
Subject
Software Engineering
Standard
Computer Science Engineering
Views
569
Asked By
Emily
Vedhika
Answer / Solution
Answer / Solution
Different Seven phases involved in waterfall life cycle are
Phase I –
Modeling Phase In this phase we view the software product as part of a larger system or organization where the product is required. This is basically a system view where all the system elements are created.
Phase II –
Software Requirements Analysis Here we have a phase where the requirements are gathered. The information domain for the software is understood. The function, behaviour, performance and interfacing of the software are determined. The requirements of the software and the customer are decided upon
Phase III –
Design This determines the data structures, the software architecture, the interface representations and the procedural (algorithmic) detail that goes into the software.
Phase IV –
Code Generation Here the actual programming is done to obtain the machine code; it is an implementation of the design.
Phase V –
Testing The testing is a process that goes hand in hand with the production of the machine code. There are a number of testing strategies. First unit testing is done and then integration testing. Alpha testing is to see if the software is as per the analysis model whereas beta testing is to see if the software is what the customer wanted.
Phase VI –
Installation The software is released to the customer.
Phase VII -
Maintenance This is the largest phase of the software life cycle. Maintenance can be of different types: to modify the software as the requirements of the customer evolve, to remove the residual bugs in the software etc.
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