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Software Development Life Cycle (SDLC)

SDLC(Software Development Life Cycle) comprises a series of activities that are used to design, develop and test high-quality software products, conforming to time and cost constraints.

sdlc Software Development Life Cycle

Planning and Requirement analysis

Requirements are gathered and analysed, a feasibility study is conducted. Planning for quality assurance requirements are laid out and possible risk factors are determined.

Defining requirements

After the analysis is done, they are clearly defined and documented. They are documented in Software Requirement Specification (SRS) document which defines all the product requirements that need to be developed into a working software product.

Designing

Based on the SRS document, the design for the product is outlined and documented in a Design Document Specification (DDS). Product modules are designed and data flow amongst them are specified using several tools.

Building

The actual building of the product starts here. Code generation occurs in this stage referring to the design. Programming languages and other tools for developing software are chosen in this stage.

Testing

In this stage, the errors are detected and fixed using different testing methods. The product is tested to check whether it has achieved the requirements and quality standards specified in SRS.

Deployment

The software product is delivered and implemented in a real business environment. Customers or end-users evaluate the product which is called User Acceptance Testing(UAT) and gives feedback based on which the product is finalized or a call for modification is considered.

Maintenance

After the product is accepted by the customer or released into the market, the software has to be maintained for a long run to incorporate changing environment requirements of the future, for improving performance and consistency of the product.

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