Prior to joining Saint Joseph’s University for MS Business Intelligence and Analytics program, I worked for an IT company back in India that made software solution for telecom companies. They were following the waterfall model (System Development Lifecycle Model) for software development. My company was developing billing solutions for telecom companies. The sales team uses to produce prototypes or case studies of the previous successful customers to secure the billing software deal with the telecom operators.
The first phase in the waterfall model is planning. As soon as the company receive...
... middle of paper ...
...each project and some of the maintenance contract would also require my company to send resources at the client side to help the customer manage the software.
There are certain advantages for the waterfall model like it is easier to understand and manage as each of the phase has a clearly defined output. Whole team concentrates on one phase do not overlap with another phase so the quality of the output from each phase improves. However there are disadvantages too for the waterfall model as once you come to the later stages like testing the company cannot accommodate new requirements by the customer this changes can only be achieved through a change request and that may take a long time. We can expect a working software at the end of latter stages, there is a high risk and high level of uncertainty, not suitable for projects where the requirements keeps on changing.
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