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Software Development Life Cycle (SDLC)

Sometimes in interview this question arise and generally they ask regarding the phases of Software Development model so i am just presenting a Brief idea regarding the SDLC.


There are many approaches which used in software Development like Waterfall Model, Incremental Model, V Model, Iterative Model, Spiral Model, Big Bang Model etc.

SDLC have following steps:

1) Requirement Analysis: In this phase, Development Team work on gathering the information as much as possible regarding the software. For gathering the information team arrange the meeting with the client, review old sites regarding that work, Team internal Meeting to understand the requirement.

2) System design: In this Phase, Developer plan the System Architecture. System design includes the Scope of Project, Scheduling Plan, Resource Availability, Limitation of the Software, What's new in learning phase, impact over the personal and professional and the end users and the requirement of hardware and software.

3) Software Design: In this phase, all information gathering done in first phase used to design the software. Input is all information and User input and the output of this phase is the Software Design.

4) Coding Phase: In this phase, The system design will be converted to the programming part. here all units and module developed in programming language to match the user requirement. This is longest phase of the SDLC.

5) Testing Phase: In this phase, Tester verified the developed software with Verification and Validation to match with the Retirement. In this phase all issue/errors/bugs/mistake is fixed by the developer who found by the testers. Unit Testing, Integration Testing. System Testing and Acceptance Testing are the part of the Testing phase.

6) Deploy: After successful testing and development , the software will be deployed to the client side for use so that users can verified the software as he/she wants.

 7) Maintenance: Once users start using the software then may issue generated. Maintenance is the term to fix all such issue generated which are found during the end user use the software. Software keep updating in future as user want some more features for his/her software.  You heard about the Beta version of the software. Beta version means the product is under maintenance but releases for user use.
Software Development Life Cycle, SDLC
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