Software Development Life Cycle – Basic Steps Leading to A Strong Product

After realizing and experiencing the alluring advantages of outsourcing, more and more companies are getting inclined towards outsourcing software development projects to major offshore destinations. However, having an in-depth knowledge of software development life cycle becomes a priority task for not only the service provider software development company but also the client to keep a check on the project progress throughout the software development.

Software development is an intricate process that requires a lot of planning, implementation and testing. You can not develop perfect software with full functionality unless it passes all the tests and quality analysis. So, companies should keep a check on SDLC while experiencing software development outsourcing, a company No software is perfect and in full functionality unless it overcomes all the tests.

A software development company put special emphasis on SDLC to produce the most effective, functional and mission critical software that can help one’s business in a long run. The software development life cycle (SDLC) is a pre-set framework that is used by all software development companies for through understanding and developing effective information systems and software.

Though software development life cycle can have many versions and each version carries its own plus points and minus points, but all version have same steps or activities that are discussed below;.

Feasibility

First of all, the project is checked for its feasibility if it should get the go-ahead. If the project is to proceed, then a project plan is thought out together with the budget estimates for future stages of development.

Requirement Analysis and Design

After testing the feasibility of the project, system or software requirements are gathered. Business analysts perform a thorough study and analysis of the business needs of the organization and the market trends. Necessary changes are proposed. From interface design to data design, every program is discussed in this stage to keep the software of high level design.

This phase considers the overall structure of the software and defines the strategy for its development. That’s requirement analysis and design phase is believed to be the most critical part of software development life cycle. Any flaw in this phase may prove very expensive for further stages of life cycle. In simple words, this phase considers the logical system of the product.

Code generation and Implementation

This phase involves the code translation of the well-thought design. Desired programs are created using a conventional programming language and with the help of programming tools like Compilers, Interpreters, Debuggers. The code is generated using various high level programming languages like C, C++, Pascal, Java, etc.

Testing and Quality Assurance

Apart from requirement analysis, testing is another crucial stage of SDLC that decides the effectiveness and functionality of the product. This phase unravels the bugs and errors of the system. Initially the individual modules of programs are tested separately which is followed by testing of the system as a whole. The system testing includes the integration testing to check whether the interfaces between modules are working properly, Volume testing to ensure the capability of the system to work on an intended platform with the expected load of data, and acceptance testing to check whether the system does what the user needs.

Maintenance and Support

Software system maintenance is an inevitable need. It undergoes various changes once it is delivered to the client. Software development should be flexible enough to inculcate required changes with time and according to changing business needs. Inevitably the system will need maintenance. Software may undergo certain changes once it is delivered to the customer. There are many reasons for the change. Change could happen because of some unexpected input values into the system. In addition, the changes in the system could directly affect the software operations. Therefore, the software should be developed in order to accommodate changes that could happen during the post implementation period.

Each and every stage of SDLC carries its own importance and plays a key role in success of any software development project.

Software Development Explained

Most of us don’t even know what software development means. Let me explain. Basically it means that someone works to develop or create new software, usually to meet the needs of business owners, for the personal use of the user, or to supply the potential needs of a client.

Developing new software usually is perceived as ‘computer programming’ to most people. That is only part of the process. There is much research that has to be done in the development of new software programs. This often involves many modifications, engineering and re-engineering, and maintenance of the finished product before it is declared ready for use by the general public.

The software developer is usually someone who’s main concern is with the many facets of the process. Their involvement is often guided by lead programmers during the developing of the software programs. It often takes a long time and no small amount of luck to develop a program that is finally free of glitches typically found in new software programs.

Programmers are the people who typically write the source codes, and the developers are often involved in many other aspects of the process, including, but not limited to specifications, designs, implementations and maintenance to name a few. Certain employees may have a single responsibility in just one of these phases of development, yet in a smaller place of business, it might be that just one employee would take on all of the tasks involved.

Companies take different approaches to how they develop software. Often it is regimented and structured when it pertains to business software. Other companies develop the software one step at a time. However the approach, there are some of the same combinations of methodologies used in the development of new programming.

A methodology in software language means a framework is developed that will structure the development process of new informational systems. Many frameworks have been used over a period of years, and what might be right for one project may not necessarily work for another. This is why new frameworks are being developed and used more often.

The same strategies are employed in both large and small companies. All involved employees would meet to discuss requirements, and proposals and recommendations are usually made at this time. The design work is worked out and clarified. Anything that needs to be updated is done now, and the developers can begin the job or working on the system. Once all this is completed, the system is delivered. Security measures are tested, and any glitches or bugs are worked out to everyone’s satisfaction. The system is deemed complete and is now ready to be distributed and used.

So, there you have it. The capsulized version of how new software is developed, and a brief discussion on who does the work that brings new and exciting developments to the software field. Assuredly there is a lot more to it than what I have discussed, but I think I have included enough information to give one a general idea behind it all.

Introduction to Software Development

Software is a part of the computer system which allows or enables the hardware to operate. Computer software can be classifies as system and application software.

System software includes the operating system and other utilities which help in the smooth functioning of the computer and other applications in it.

Application software includes computer programs and related documentation that accomplish end-user data processing tasks. These are software developed for the end users for tasks like production control, payroll, inventory, word processing etc.

Software Development

It is a series of processes systematically undertaken to improve a business through the use of computerized information system. Software development has two major components, Systems Analysis and Design.

Analysis specifies ‘what’ the system should do, that is it sets the objective and Design stated ‘how’ to accomplish this objective. System Analysis is the process of studying the current system by a set of procedures which help to gather and interpret facts, identify the problems and use this gathered facts to improve the current system. The process of developing a new system with detailed concentration on the technical and other specifications that will make the new system operational is system design.

Software Development Life Cycle (SDLC)

It is a sequence of events carried out by analysts, designers and users to develop and implement an information system. The activities are carried out in different stages. The phases are Preliminary investigation (feasibility study), Determination of system requirements (analysis), Design of system, Development of software, System testing, System Implementation, System Maintenance. In reality these phases can overlap.

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