What is Software Development Life Cycle? Phases and Model

It also includes detailed documentation for how to develop, extend, and maintain the software system. A Software Development Life Cycle involves several different stages, including requirements gathering, planning/designing, building, testing, and finally deployment. Having this DevSecOps mindset means more secure development, security testing, and continuous monitoring and protection in the CI/CD pipeline. This need for greater software security comes at a time when there is tremendous pressure on developers to build better applications faster than ever and modernize those apps faster, too.. As a result, development teams are turning to more agile processes to further streamline workflows and reduce time to market. This is a big reason why companies are implementing a DevSecOps approach that looks at the entire SDLC and integrates security testing from beginning to end.

what is software development life cycle

Most companies deploy new software to a small percentage of users (10 to 15%) and slowly phase it into the rest of the customer base. Gradual introduction what is software development means you limit the impact on the UX if there’s an overlooked issue with the product. Some companies decide to create a prototype during this SDLC stage.


This will help your team to produce organized and consistent code that is easier to understand but also to test during the next phase. In other words, the team should determine the feasibility of the project and how they can implement the project successfully with the lowest risk in mind. There are different methodologies that organizations can use to implement the SDLC, such as Waterfall, Agile, Scrum, V-Model and DevOps. A minimal working product is put together quickly for production and upgraded continuously. Development is done in pairs, with two programmers at one system, taking a turn to code while the other always reviews and provides feedback.

what is software development life cycle

The focus has shifted from ‘alienating’ to ‘collaborating’ IT processes with business objectives in order to stay innovative and competitive. Cybersecurity has holistically been a well-funded and highly prioritized process at most organizations to protect enterprise systems against cyber threats. Because SDLC is a linear model, and the organization does not advance to the next step until the current step is complete, this approach creating information silos.

Incremental Approach

These drawbacks can particularly affect agile and lean development organizations, but their risks are relevant to any software company using the SDLC framework. This includes compiling requirements, studying user personas, and agreeing on the product’s purpose. During this phase, the team will also discuss the opportunities and risks of pursuing the project. This is why Software Testing Help refers to this phase as both requirements gathering and analysis. The software development lifecycle gives organizations a systematic, step-by-step approach to developing successful software from gathering the initial requirements for a new product.

what is software development life cycle

Take a look at this infographic to understand this historic migration of practices from the waterfall to new DevOps and agile methodologies. The first implementations of software technologies involved simple tools, like basic go-to lines and if/then statements. Gain end-to-end visibility of every business transaction and see how each layer of your software stack affects your customer experience. We offer Application Performance Monitoring, Real User Monitoring, Server Monitoring, Logs Monitoring, Synthetic Monitoring, Uptime Monitoring, and API Analytics. It works perfectly with any application, regardless of framework, and has plugins.

Software Reliability

These models are also referred as Software Development Process Models”. Each process model follows a Series of steps unique to its type to ensure success in the process of software development. The software development life cycle is divided into seven phases that divide the development process into tasks that are assigned, completed, measured, and improved by IT teams. The SDLC where security is given prime importance and dealt with from the get-go is called a ‘Secure SDLC’ or security systems development lifecycle. Integrating security with SDLC in a ground-up approach has been easier with the modern application security testing tools. Using this approach helps teams identify and deal with problems immediately.

what is software development life cycle

In most cases, board participation includes one or more product owners. At the end of each sprint, a sprint review and sprint retrospective meeting occur. In the sprint review, the product is showcased to the client or product owner for feedback, and a retrospective meeting is an internal team meeting to improve the overall process.

How the Software Development Life Cycle Works

SDLC methodologies fit within a flexibility spectrum ranging from agile to iterative to sequential. Agile methodologies, such as XP and Scrum, focus on lightweight processes that allow for rapid changes. Iterative methodologies, such as Rational Unified Process and dynamic systems development method, focus on stabilizing project scope and iteratively expanding or improving products.

  • Is a simple diagram that depicts each activity involved in creating a software program.
  • Each SDLC model offers a unique process for your team’s various project challenges.
  • During the planning phase, project leaders go over the project terms.
  • This entire process is called sprint, and it generally occurs in 1 to 3 weeks period for delivering a working part of the overall product.
  • The Software Development Life Cycle is a process used by software development organizations to plan, design, develop, test, deploy, and maintain software applications.
  • The risk of changing requirements is greatly reduced and customers are allowed to respond to each build.
  • A prototype is similar to one of the early versions of software in the Iterative software development approach.

The implementation team will install new hardware, servers, and have everything scalable for production. This includes setting up the links, databases for real-time users, and syncing up with development teams and release managers. The coding phase is the process of translating the design into a working software product.

Agile Vs. Traditional Models

Companies are under more pressure than ever to deliver high-quality products in often unrealistically short time frames. In such a market, approaching software creation in any way that does not involve a pre-defined SDLC is not a business-wise move. Start building your development around a strict life cycle and stay a step ahead of competitors still relying on an old-school approach to product design. An SDLC is a big-picture breakdown of all the steps involved in software creation (planning, coding, testing, deploying, etc.). Companies define custom SDLCs to create a predictable, iterative framework that guides the team through all major stages of development.

Phases of Software Development Life Cycle

After the distribution of the software, proper maintenance has to be provided in a timely manner. Source Control is a security plan that protects your working code. It involves keeping it in one location with log access and secure access.

What Is the Secure Software Development Lifecycle (SSDLC)?

It could also be the installation of an application on a smartphone. Many developers need to brush up on their skills or team up with others. Defines the application’s security mechanisms, which may include SSL traffic encryption, password protection, and secure user credential storage. Implementation is the part of the process where software engineers actually program the code for the project. Determining the software development method for a particular project.

There are a few other valuable techniques, models and stages of software development. The resources required to complete the project are also defined in the requirements. A group might, for example, create software to control custom manufacturing equipment, and the machine is required for the process to work. A good SDLC model can be chosen depending on the needs of the customer and the organization’s goals. Developers can reap the benefits of the SDLC in software development provided they understand the customer’s requirements and stick to the defined plan. It helps in good planning before the start of the actual construction.

More precise project planning, budget estimations, and scheduling. A high-risk-high-reward SDLC tactic that does not invest much time or money into a project. Dividing projects into smaller chunks makes managing the product and analyzing progress easier. Inception phase (analysis of the project’s needs, goals, and scope). Ideally, the deployment phase happens automatically (typically as a part of CI/CD). Companies with lower maturity or in some highly regulated industries may require manual approvals during this SDLC stage.

Build / Code – This stage is one of the longest, and where much of the work is done. It should overlap to some degree with the following Documentation and Test phase. Identify Requirements – The first stage is about understanding the problems you are trying to solve, and what the software needs to do. Many organizations struggle to manage their vast collection of AWS accounts, but Control Tower can help. Between remote work and hybrid cloud lies a menacing security gap that experts warn more and more businesses will fall into …

Is a simple diagram that depicts each activity involved in creating a software program. This helps to eliminate waste and improve the development process’ efficiency. Monitoring ensures that the project stays on schedule and is a viable investment for the business.

Gartner’s 2020 I&0 Leaders Survey Data also confirms the increasing popularity of SaaS technology. Discover how the cloud is driving digital transformation in the insurance industry at a new pace in the post-pandemic world. 4-Define the quality requirement for each part of the task and ensure these are met. 2-Estimate the work required to do a task and ensure all resources are available.

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