Software development

7 Phases of the System Development Life Cycle Guide

Before we even begin with the planning stage, the best tip we can give you is to take time and acquire proper understanding of app development life cycle. In this guide, we’ll break down everything you need to know about the system development life cycle, including all of its stages. We’ll also go over the roles of system analysts and the benefits your project might see by adopting SDLC.

type of system development life cycle

It may also be helpful to choose your first software language to learn. Languages like C# and Java are still in demand by employers, but many new languages are emerging, too. Before choosing a language, you need to know what you want to code, but simple front-end development languages like JavaScript, HTML, and CSS are good places to start. Fundamentally, SDLC trades flexibility for control by imposing structure.

System Development Life Cycle Guide

Ultimately, any development team in both the IT and other industries can benefit from implementing system development life cycles into their projects. Use the above guide to identify which methodology you want to use in conjunction with your SDLC for the best results. It’s linear and straightforward and requires development teams to finish one phase of the project completely before moving on to the next. Choosing the right SDLC methodology for your software development project requires careful thought.

  • While the process timeline will vary from project to project, the SDLC generally follows the seven stages outlined below.
  • Thus, systems analysts should have an even mix of interpersonal, technical, management, and analytical skills altogether.
  • It also captures the structure in which these methods are to be undertaken.
  • Maintenance involves updating an existing software product to fix bugs and ensure reliability.
  • Each system goes through a development life cycle from initial planning through to disposition.

This includes conducting interviews, studying existing processes, and identifying stakeholders’ needs. The gathered information serves as a basis for designing a system that meets users’ expectations and addresses organizational challenges. And if he has some complaints or issues, we can solve them easily because we are still developing the software. But None of them is perfect, and each brings its favorable aspects and disadvantages for a specific software development project or a team. After detailed testing, the conclusive product is released in phases as per the organization’s strategy. If it performs well, the organization sends out the product as a whole.

Software Development Life Cycle Explained

During these phases architects, developers, and product managers work together with other relevant stakeholders. Each of the testing steps in the development/configuration phase is tested against a step in the design phase. This ensures that the objective of the system is met and that it is fit for purpose.

type of system development life cycle

Based on these, the development team creates a quick and cheap first version of the software. Then, as additional requirements are identified, additional iterations of the software are designed and built. Each iteration goes through all the phases of the SDLC and these cycles are repeated until completion. It was common for the team to work on several SDLC phases at the same time.


With its ability to allow changes to be made at any time and work on multiple features simultaneously, Agile can help get your project done faster. System development life cycles are typically used when developing IT projects. Depending on the skill of the developers, the complexity of the software, and the requirements for the end-user, testing can either be an extremely short phase or take a very long time. Take a look at our top 10 best practices for software testing projects for more information.

type of system development life cycle

Agile has since been enhanced by frameworks that extend its principles into every aspect of product and software development, from ideation to deployment. A software life cycle model (also termed process model) is a pictorial and diagrammatic representation of the software life cycle. A life cycle model represents all the methods required to make a software product transit through its life cycle stages.

Life Cycle of System Analysis and Design

Rapid prototyping is also ideal for projects requiring a high degree of user involvement, since it encourages stakeholders and end users to participate early and in the development process. It is also well-suited for projects that have limited resources, as each increment can be completed with a smaller subset of the overall team, reducing the risk of burnout or turnover. In other words, a life cycle model maps the various activities performed on a software product from its inception to retirement. Different life cycle models may plan the necessary development activities to phases in different ways. Thus, no element which life cycle model is followed, the essential activities are contained in all life cycle models though the action may be carried out in distinct orders in different life cycle models. During any life cycle stage, more than one activity may also be carried out.

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This SDLC model can be useful, provided your project has no unknown requirements. The iterative and phased stages of an SDLC benefit from the leadership of a dedicated project manager. The major goal of an SDLC is to provide cost effective and appropriate enhancements or changes to the information type of system development life cycle system that meet overall corporate goals. The project manager is responsible for executing and closing all the linear steps of planning, building, and maintaining the new or improved system throughout the process. This phase often requires extensive programming skills and knowledge of databases.

type of system development life cycle

The team will build functionality for the product or service, which includes creating a user interface and building the database so users can store information in your system. Once you’ve come up with some ideas, it’s time to organize them into a cohesive plan and design. This requires a lot of research and planning to ensure that your final product meets your expectations (and those of your customers). The big step is creating a detailed project plan document and work breakdown structure that outlines the requirements. System Design is a crucial stage in the SDLC as it bridges the gap between requirements analysis and system development.

S. Reliability Models

Popular SDLC models include the waterfall model, spiral model, and Agile model. Project management methods shall be used to control the development process. The second theme includes ways to determine the data necessary to produce the logical requirements specified by the organization.