SOFTWARE DEVELOPMENT LIFE CYCLE

The Software Development Life Cycle is a step-by-step process involved in the development of a software product. It is also denoted as Software Development process in certain parts of the world. The whole process is generally classified into a set of steps and a specific operation will be carried out in each of the steps.

Classification

The basic classification of the whole process is as follows:

Each of the steps of the process has its own importance and plays a significant part in the product development. The description of each of the steps can give a better understanding.

Planning
This is the first and foremost stage in the development and one of the most important stages. The basic motive is to plan the total project and to estimate the merits and demerits of the project. The Planning phase includes the definition of the intended system, development of the project plan, and Parallel management of the plan throughout the proceedings of the development.

Analysis
The main aim of the analysis phase is to perform statistics and requirements gathering. Based on the analysis of the project and due to the influence of the results of the planning phase, the requirements for the project are decided and gathered.

Once the requirements for the project are gathered, they are prioritized and made ready for further use. The decisions taken in the analysis phase are out and out due to the requirements analysis. Proceedings after the current phase are defined.

Design
Once the analysis is over, the design phase begins. The aim is to create the architecture of the total system. This is one of the important stages of the process and serves to be a benchmark stage since the errors performed until this stage and during this stage can be cleared here.this stage can be clear Most of the developers have the habit of developing a prototype of the entire software and represent the software as a miniature model. The flaws, both technical and design, can be found and removed and the entire process can be redesigned.

Development and Implementation
The development and implementation phase is the most important phase since it is the phase where the main part of the project is done. The basic works include the design of the basic technical architecture and the maintenance of the database records and programs related to the development process.

One of the main scenarios is the implementation of the prototype model into a full-fledged working environment, which is the final product or software.

Testing
The testing phase is one of the final stages of the development process and this is the phase where the final adjustments are made before presenting the completely In general, the testers encounter the problem of removing the logical errors and bugs. The test conditions which are decided in the analysis phase are applied to the system and if the output obtained is equal to the intended output, it means that the software is ready to be provided to the user.

Maintenance
The toughest job is encountered in the maintenance phase which normally accounts for the highest amount of money. The maintenance team is decided such that they monitor on the change in organization of the software and report to the developers, in case a need arises.