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The product may first be released in a limited segment and tested in the real business environment UAT- User acceptance testing. In this stage of SDLC the actual development starts and the product is built. It consists of a detailed plan describing how to develop, maintain, replace and alter or enhance specific software.

The life cycle defines a methodology for improving the quality of software and the overall development process. Sequential means that the next phase can start only after the completion of first phase. The software development life cycle SDLC is a framework defining tasks performed at each step in the software development process.


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. Following are the most important nots popular SDLC models followed in the industry: However this stage refers to the testing only stage of the product where products defects are reported, tracked, fixed and informayion, until the product reaches the secruity standards defined in the Informtaion.

Iterative and Spiral models are more accommodative in terms of change noyes are suitable for projects where the requirements are not so well defined, or the market requirements change quite frequently. Infofmation for the quality assurance requirements and identification of the risks associated with the project is also done in the planning stage.

Once the product is tested and ready to be deployed it is released imformation in the appropriate market. This is done through. These models are also referred as “Software Development Process Models”. Customer interaction is the backbone of Agile methodology, and open communication with minimum documentation are the typical features of Agile development environment.


SDLC is a process followed for a software project, within a software organization. There are various software development life cycle models defined and designed which are followed during software development process. Requirement analysis is the most important and fundamental stage in SDLC. It aims to be the standard that defines all the tasks required for developing and maintaining software.

After the product is released in the market, its maintenance is done for the existing customer base. 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.

Then based on the feedback, the product may be released as it is or with suggested enhancements in the targeting market segment. 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.

Sometime product deployment happens in stages as per the organizations. The programming language is chosen with respect to the type of software being developed. Each process model follows a Series of steps unique to its type, in order to ensure success in process of software development.

A typical Software Development life cycle consists of the following stages: Big Bang model is a informafion approach to Software development and is suitable for small or academic projects.


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.

Agile introduces the concept of fast delivery to customers using prototype approach.

Based on the requirements specified in SRS, usually more than one design approach for the product architecture is proposed and documented in a DDS – Design Document Specification. The informatin design of all the modules of the proposed architecture should be clearly defined with the minutest of the details in DDS.

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The following figure is a graphical representation of the various stages of a typical SDLC. Don’t You Think this Awesome Post should be shared?? SRS is the reference for product architects niformation come out with the best architecture for the product to be developed.

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The SDLC aims to produce a high quality software that meets or exceeds customer expectations, reaches completion within times and cost estimates. SDLC is the process consisting of a series of planned activities to develop or alter the software products.

Agile is the most popular model used in the industry. It is also called as Software development process. Software Requirement Specification document which consists of all the product requirements to be designed and developed during the securitg life cycle. 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.

This information is then used to plan the basic project approach and to conduct product feasibility study in the economical, operational, and technical areas.


This tutorial also gives you an insight into the pros and cons and the practical applications of the SDLC models discussed. It is performed by the senior members of the team with inputs from the customer, the sales department, market surveys and domain experts in the industry. The jnformation 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 ot2042 for their project.

Agile divides the project into small iterations with specific deliverable features. Once the requirement analysis is done the next step is to clearly define and document the product requirements and get them approved from securitty customer or the market analysts. The programming code is generated as per DDS during this stage.