Software Development is one of the most phased tasks among all IT enabled works. It is a complete systematic process to achieve higher level of customer satisfaction and product usability. Several software development companies in India are engaged in developing software for national or international clients. All of them use different types of programming languages and technologies in order to meet exact customer requirements. However, few things are common; all of them use thorough SDLC principles throughout the whole software development cycle.

SDLC ? Software Development Life Cycle

Software Development Life Cycle also known as System Design Life Cycle related to methodologies or principles used to develop software or custom application. The SDLC methodology was developed in order to ensure that systems are designed and implemented in a methodical, logical and systematic approach.

There are six phases in SDLC:

1.Preliminary Investigation Phase

2.Analysis Phase

3.Design Phase

4.Development Phase

5.Implementation Phase

6.Maintenance Phase

These phases are classified in order to get the maximum possible quality output from development process. Each phase of the SDLC creates a tangible product or deliverable. These deliverables act as milestones that help in making decisions regarding continuity and viability of the project. This is among one of the most important features of SDLC that after completion of each phases, we can review the progress. In case of wrong decision, we can drop the idea of development to stop wasting of money as well as resources.

Each phase of SDLC focuses on important aspects of software development. It covers following things:

1.The inception of idea in customers mind about having software to accomplish specific tasks

2.Contacting the Software Development Service Provider and telling him the need

3.Elaborating customers need and getting maximum details about the system to be developed along with the tasks to be performed by the system

4.Making a prototype of system, breaking it into smaller modules, and analyzing its functionality

5.Deciding the technology that is best to develop desired system with least resources and budget

6.Formation of Team for different modules and task allocation

7.Phased Construction of every module

8.Final implementation of system by combining all modules

9.Documentation and Testing

10.Delivery and Maintenance

In brief, SDLC is the plan of taking customer requirements as input, and turning it into a well-designed, robust, effective, efficient and usable finished application as output.