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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 programming language is chosen with respect to the type of software being developed. SDLC is a process followed for a software project, within a software organization. Planning for the quality assurance requirements and identification of the risks associated inforamtion the project is also done in the planning stage.

Sequential means that the next phase can start only after the completion of first phase. Then based on the feedback, the product may be released as it is or with suggested enhancements in the targeting market segment. It aims to ih2042 the standard that defines all the tasks required for developing and maintaining software. It consists of a detailed plan describing how to develop, maintain, replace and alter or enhance specific software.

Sometime product deployment happens in stages as per the organizations. SDLC is the process consisting of a series of planned activities to develop or alter the software products. There are various software development life cycle models defined and designed which are followed during software development process.

Customer interaction is the backbone of Agile methodology, and open communication with minimum documentation are the typical features of Agile development environment. 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 is the most popular model used in the industry. 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 life cycle defines a methodology for informatino the quality of software and the overall development process.



The SDLC aims to produce a high quality software that meets or exceeds customer expectations, reaches completion within times and cost estimates. The programming code is generated as per DDS during this stage. Following are the most important and popular SDLC models followed in the industry: 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. 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.

Big Bang model is a random approach to Software development and is suitable for small or academic projects. However this stage refers to the testing only stage of the product where products defects are reported, tracked, fixed and retested, until the product reaches the quality standards defined in the SRS.

It is also called as Software development process. A typical Software Development life cycle consists of the following stages: Each process model follows a Series of steps unique to its type, in order to ensure success in process of software development.

If the design is performed in a detailed and organized manner, code generation can be accomplished without much hassle. After the product is released lt2042 the market, its maintenance is done for the existing customer base. SRS is the reference for product architects to come out with the it042 architecture for the product to be developed. This is done through. This information is then used to plan the basic project approach and to conduct product feasibility study in the economical, operational, informstion technical areas.

Agile divides the project into small iterations with specific deliverable features. 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.


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.

The product may first be released in a limited segment and tested in the real business environment UAT- User acceptance testing. Software Requirement Specification document which consists of all the product requirements to be designed and developed during the project life cycle.

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.

Don’t You Think this Awesome Post should be shared?? 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 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 tutorial also gives you an insight into the pros and cons and the practical applications of the SDLC models discussed.

Agile introduces the concept of fast delivery to customers using prototype approach. The software development life cycle SDLC is a framework defining tasks performed at each step in the software development process.

Engineering Buzz: IT Information Security – SDLC Notes

These models are also referred as “Software Development Process Models”. Once the product is tested and ready to be deployed it is released formally in the appropriate market. The internal design of all the modules of the proposed architecture should be clearly defined with the minutest of the details in DDS. In this stage of SDLC the actual development starts securjty the product is built. Requirement analysis is the most important and fundamental stage in SDLC.