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eNotes(AU): 7th Semester(IT-R08)

The programming code is generated as per DDS during this stage. In this stage of SDLC the actual development starts and the product is built. Once the product is tested and ready to be deployed it is released formally in the appropriate market.

A design approach clearly defines all the architectural modules of the product along with its communication and data flow representation with the external and third party modules if any. These models are also referred as “Software Development Process Models”.


Big Bang model is a random approach to Software development and is suitable for small or academic projects. This information is then used to plan the basic project approach and to conduct product feasibility study in the economical, operational, and technical areas. It consists of a detailed plan describing how to develop, maintain, replace and alter or enhance specific software. SRS is the reference for product architects to come out with the best architecture for the product to be developed.

SDLC is a process followed for a software project, within a software organization.

This DDS is reviewed by all the important stakeholders and based on various parameters as risk assessment, product robustness, design modularitybudget and time constraintsthe best design approach is selected for the product. Following are the most important and popular SDLC models followed in the industry: Sometime product deployment happens in stages as per the organizations.


Each process model follows a Series of steps unique to its type, in order to ensure success in process of software development. Agile divides the project into small iterations with specific deliverable features.

If the design is performed in a detailed and organized manner, code generation can be accomplished without much hassle.

SDLC is the process consisting of a series of planned activities to develop or alter the software products. Once the requirement analysis is done the next step is to clearly define and document the product requirements and get them approved from the customer or the market analysts. The product may first be released in a limited segment and tested in the real business environment UAT- User acceptance testing.

The programming language is chosen with respect to the type of software being developed. This is done through. Agile is the most popular model used in the industry. The life cycle defines a methodology for improving the quality of software and the overall development process. Iterative and Spiral models are more accommodative in terms of change and are suitable for projects where the requirements are not so well defined, or the market requirements change quite frequently.

The SDLC aims to produce a high quality software that meets or exceeds customer expectations, reaches completion within times and cost estimates. The software development life cycle SDLC is a framework defining tasks performed at each step in the software development process.

It is performed by the senior members of the team with inputs from the customer, the sales seurity, market surveys and domain experts in the industry.


This tutorial also gives you an insight into the pros and cons and the practical applications of the SDLC models discussed.


After the product is released in the market, its maintenance is done for the existing customer base. Planning for the quality assurance requirements and infor,ation of the risks associated ijformation the project is also done in the planning stage.

The following figure is a graphical representation of the various stages of a typical SDLC. Such models are suitable for projects with very clear product requirements and where the requirements will not change dynamically during the course of project completion.

The outcome of the technical feasibility study is to define the various technical approaches that can be followed to implement the project successfully with minimum risks.


It aims to be the standard that defines all the tasks required for developing and maintaining software. Developers have to follow the coding guidelines defined by their organization and programming tools like compilers, interpreters, debuggers etc are used to generate the code.

The information in this tutorial will help the project managers decide what SDLC model would be suitable for their project and it would also help the developers and testers understand basics of the development model being used for their project. Agile noted the concept of fast delivery to customers using prototype approach.