The Software Development Life Cycle

The preferred methodologies for managing a software’s lifecycle are a major factor in deciding how a firm reacts to market demands. The major SDLC frameworks followed are the waterfall model, Agile methodology (scrum) and Kanban. We will discuss this answer

One commonly-used business process methodology is that of the Systems Development Lifecycle (SDL). The steps of the method involve: defining the components of the proposed system; determining its requirements (interviewing users, determining existing processes); designing the system components (determining specifications and job definitions); implementing the system (building, testing, and/or converting the existing system) and then maintaining the system (by fixing failures and quality monitoring) (Noe 2010: 18).

This stage will end with a clear definition of problems and a plan of how to address them. Key activities during the define stage are: Project development, project management, and project sign-off.

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Though many people interchange system engineering models and software engineering life cycle models, they are defined as two different approaches to software development. System engineering is the technical and technical management process that results in delivered products and systems that exhibit the best balance of cost and performance. As the program progresses from one phase to the next one, so does the system engineering process. It deals with the overall management of engineering project during their life cycle. Its main focus is knowing what the clients and end users wants and needs are satisfied and developing just that all the way through the system’s entire life cycle. Whereas, on the other hand, software engineering focuses on the quality of the product or system, how cost effective it is, is it done within the time-constraints given, whether it is easy to maintain and enhance, and does it work as the requirements defined. Its main focus is on delivering a product that meets the requirement specifications. There are so many models to choose from, as it all depends on what the project needs and entails. Depending on the requirements, allows for the choice of what mode to use.

“The systems development life cycle (SDLC) is the process of determining how an information system (IS) can support business needs, designing the system, building it, and delivering it to users”[1]. There are several approaches (models) to the SDLC but purpose of the each approach is the same. Each and every process comprises of phases: Planning phase, Analysis phase, Design phase, Implementation phase, and Maintenance phase. The Planning phase is phase related to the planning of the system such as initial system request, feasibility analysis and project plan; Analysis phase is the phase which is related to the analysis of the system, in this phase analysis such as requirement definition, use cases, mental/logical process

The Software Development Life Cycle is a model, which consists of multiple steps or phases. This model is used for the development of software or application. The purpose of SDLC is to make software more efficient and effective. The life cycle typically has six phases. It starts with analysis and design phase, then the implementation/ construction phase, testing phase, release or deployment phase and ends with maintenance phase. The analysis phase determines why the need for the software arose, the deliverables or outcome expected from the software or system and also identifies the various requirements for the development. It is very important to involve users, stakeholders and working engineers in this phase, to ensure that the “Why” criteria is thoroughly fleshed out. A well worked out analysis phase will help developers and architects to successfully work on the given requirements in the design phase. The design phase might also involve building several use cases and building prototypes for users. Design can be logical design, physical design or architectural design. In the construction phase, physical construction is done to complete the software (i.e. programming, hardware, software and so on). The implementation phase turns the design into an actual product. The next phase tests the software for possible vulnerabilities and bugs. This is to ensure that the product is safe from possible security breach. The product is tested in the real world to see if it functions as

In software engineering, a software development methodology (also known as a system development methodology, software development life cycle, software development process, software process) is a splitting of software development work into distinct phases (or stages) containing activities with the intent of better planning and management. It is often considered a subset of the systems development life cycle. The methodology may include the pre-definition of specific deliverables and artifacts that are created and completed by a project team to develop or maintain an application.

Figure 0 1: The seven phases of the systems development life cycle (SDLC) (Tech Talk, n.d.)

The quality of a software highly depend on the process that is followed in the organization for the projects. There are a large number of projects failed in the software nowadays due to lack of a SDLC (Software Development Life Cycle) model or selecting a poor SDLC model for their projects. “By selecting right software process model a better and high quality product can be found within budget and time” (Neha & Satinder Pal, 2011). “SDLC models are tools that allow the development team to correctly follow the SDLC Steps to create software that meets a business need” (Purcell, n.d).

The software development life cycle is the cycle in which software is developed. It is a process that has been improved upon as programming has expanded and become a bigger part of computers and networking. Programming is necessary in order to enable computers to perform in a desired manner, and those computers rely on that programming as instructions in order to function. Since computers rely on their programming to know how to function, the programming needs to be as efficient and flawless as possible, in order to produce ideal results. The software development life cycle is a tool used to help achieve ideal results.

TCS uses Software Development Life Cycle [SDLC] process consisting of a series of planned activities to develop or alter the software products. These processes are normally oriented toward either sequential software development processes, such as the Waterfall model, or Agile software development processes, such as the Scrum model.

specifications are documented in detail which will lay the foundation of that software development cycle. This requirement documentation defines what the software will do and how it will do it and will also come in handy when there are future developments. Since all the specification documents are prepared early on and presented to the customers and developments team, any design changes that need to be made are captured in the early stages of the lifecycle which minimizes effort and time later during the design phase or the implementation phase when the coding is already done and more resources would be required to make necessary changes. Once the requirements are gathered and documented, use cases and business model is generated that will

SDLC: Software Development Life Cycle means the phases usually covered during the production of software flowing from planning to maintenance.

Abstract: In this report we are going to explore about SDLC (Software Development Life Cycle) Methodology and we are discussing about the differences between SDLC and Agile Project Management. Firstly we discuss about basics of SDLC Methods and their SWOT Analysis their mission and visions , And we are discussing their basic differences in it