Definition of SDLC

SDLC or the Software Development Life Cycle is a process that produces software with the highest quality and lowest cost in the shortest time. SDLC includes a detailed plan for how to develop, alter, maintain, and replace a software system.
or
Software Development Life Cycle (SDLC) is a process used by the software industry to design, develop and test high quality softwares. The SDLC aims to produce a high-quality software that meets or exceeds customer expectations, reaches completion within times and cost estimates.It consists of a detailed plan describing how to develop, maintain, replace and alter or enhance specific software.
                             Stages of SDLC

A typical Software Development Life Cycle consists of the following stages −

Stage 1: Planning and Requirement Analysis

Requirement analysis is the most important and fundamental stage in SDLC. 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. This information is then used to plan the basic project approach and to conduct product feasibility study in the economical, operational and technical areas.
Planning for the quality assurance requirements and identification of the risks associated with the project is also done in the planning stage.

Stage 2: Defining Requirements

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. This is done through an SRS (Software Requirement Specification) document which consists of all the product requirements to be designed and developed during the project life cycle.

Stage 3: Designing the Product Architecture

SRS is the reference for product architects to come out with the best architecture for the product to be developed. 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.

Stage 4: Coding or Developing the Product or Building 

In this stage of SDLC the actual development starts and the product is built. The programming code is generated as per DDS during this stage. If the design is performed in a detailed and organized manner, code generation can be accomplished without much hassle.
Developers must follow the coding guidelines defined by their organization and programming tools like compilers, interpreters, debuggers, etc. are used to generate the code. Different high level programming languages such as C, C++, Pascal, Java and PHP are used for coding. The programming language is chosen with respect to the type of software being developed.

Stage 5: Testing the Product

This stage is usually a subset of all the stages as in the modern SDLC models, the testing activities are mostly involved in all the stages of SDLC. However, this stage refers to the testing only stage of the product where product defects are reported, tracked, fixed and retested, until the product reaches the quality standards defined in the SRS.

Stage 6 & 7: Deployment in the Market and Maintenance and Feedback

Once the product is tested and ready to be deployed it is released formally in the appropriate market. Sometimes product deployment happens in stages as per the business strategy of that organization. The product may first be released in a limited segment and tested in the real business environment (UAT- User acceptance testing).
Then based on the feedback, the product may be released as it is or with suggested enhancements in the targeting market segment. After the product is released in the market, its maintenance is done for the existing customer base.

or 

SDLC Can Also Be Answered in The Below Manner in The Step by Step Process  : -







Comments

Post a Comment

Popular posts from this blog

Image
Meaning and Nature of Communi­cation : The exchange of information or passing of information, ideas or thought from one person to the other or from one end to the other is communication. According to McFarland communication is, “a process of meaningful interaction among human beings. More specifically, it is the process by which meanings are perceived and understandings are reached among human beings.” Newman and summer defined communication as “an exchange of facts, ideas, opinions or emotions by two or more persons.” Communication is the process of passing information from one person to another. The purpose of communication understands of information. Whatever one wants to say to someone should be clearly understood by him else the very purpose of the communication would be defeated. Importance of Communication: Effective communication is vital for efficient management and to improve industrial relations. In modern world the growth of telecommunication, information technolo...
Read more
She was one of those pretty and charming girls born, as if by an error of fate, into a family of clerks. She had no dowry, no expectations, no means of becoming known, understood, loved or wedded by a man of wealth and distinction; and so she let herself be married to a minor official at the Ministry of Education.      She dressed plainly because she had never been able to afford anything better, but she was as unhappy as if she had once been wealthy. Women don't belong to a caste or class; their beauty, grace, and natural charm take the place of birth and family. Natural delicacy, instinctive elegance and a quick wit determine their place in society, and make the daughters of commoners the equals of the very finest ladies.      She suffered endlessly, feeling she was entitled to all the delicacies and luxuries of life. She suffered because of the poorness of her house as she looked at the dirty walls, the worn-out chairs and the ugly curtai...
Read more
Voice And Voiceless Phonetics English Phoneticists , who study the sound of the human voice, divide consonants into two types: voiced and voiceless. Voiced consonants require the use of the vocal cords to produce their signature sounds; voiceless consonants do not. Both types use the breath, lips, teeth, and upper palette to modify speech further. VOICED CONSONANTS Your vocal cords, which are actually mucous membranes, stretch across the larynx at the back of the throat. By tightening and relaxing as you speak, the vocal cords modulate the flow of breath expelled from the lungs.  An easy way to determine whether a consonant is voiced or not is to place a finger on your throat. As you pronounce a letter, feel the vibration of your vocal cords. An easy to test by putting your finger on your throat. If you feel a vibration the consonant is a voiced one. These are the voiced consonants: B, D, G, J, L, M, N, Ng, R, Sz, Th (as in the word "then"), V, W, Y, and Z. But i...
Read more