Waterfall Model


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The waterfall model is a sequential software development process, in which progress is seen as flowing steadily downwards (like a waterfall) through the phases of Conception, Initiation, Analysis, Design (validation), Construction, Testing and maintenance.

The waterfall development model has its origins in the manufacturing and construction industries; highly structured physical environments in which after-the-fact changes are prohibitively costly, if not impossible. Since no formal software development methodologies existed at the time, this hardware-oriented model was simply adapted for software development.


Feasibility Study

Most Computer systems are developed to satisfy known user requirements. This means that first event in the life cycle of the system is usually the task of studying whether it is feasible to computerize a system under consideration or not once the decision is made, a report is forwarded to the concerned authorities. This study is known as feasibility study.




Operational Feasibility
The primary question that arises is, will the proposed system impact the working of other existing systems? Instead of affecting the existing system, the proposed system provide more operations and other flexibilities and it exclude the manual work and also the physical registers for the various records.

Technical Feasibility
Technical feasibility of any system is the availability of both hardware and software for the proposed system. And it is feasible because of the software is easily available; require less memory, and easy to install with the today’s latest OS.

Financial Feasibility
There is no overhead cost for software or hardware. The system is independent of other software or hardware technologies.