Software Engineering (2160701)

BE | Semester-6   Summer-2019 | 10-05-2019

Q1) (C)

Explain Waterfall process model

·       When requirements for a problem are well understood then this model is used in which work flow from communication to deployment is linear

·       This Model also called as the Classic life cycle or linear sequential model.

·       When to use?

o   Requirements are very well known, clear and fixed

o   Product definition is stable

o   Technology is understood

o   There are no ambiguous (unclear) requirements

o   Ample (sufficient) resources with required expertise are available freely

o   The project is short

Communication: Communication with Customers / stockholders to understand project requirements for defining software features

Planning: Software Project Plan which defines workflow that is to follow. It describes technical task, risks, resources, product to be produced & work schedule

Modeling: Creating models to understand requirements and shows design of software to achieve requirements

Construction: Code Generation (manual or automated) & Testing (to uncover errors in the code)

Deployment: Deliver Software to Customer Collect feedback from customer based on evaluation Software Support

Advantages

·       Simple to implement and manage

Drawbacks

·       Unable to accommodate changes at later stages, that is required in most of the cases.

·       Working version is not available during development. Which can lead the development with major mistakes.

·       Deadlock can occur due to delay in any step.

·       Not suitable for large projects.