What is SDLC? Software Development Lifecycle Explained

The outcome is a Software Requirement Specification (ReqView.pdf as an example) – a detailed description that captures the features, behavior, quality attributes, constraints, etc. This guide explores the different phases of DevOps Lifecycle and discusses 7Cs of DevOps, best pract… BrowserStack, with its broad range of real test environments what is systems development life cycle enabled by hybrid-cloud technology, serves as the perfect test infrastructure for your websites and mobile applications. Humans read documents created by other humans and turn them into code. Some teams can cleanly manage to define for all layers simultaneously, while most others will struggle, and there will be back and forth.

What are the 5 SDLC models

A feature-driven development team can adapt to changes in requirements dynamically. Also, the frequency of tests in Agile helps to minimize the risk of major failures. The Rapid Application Development (RAD) model is based on prototyping and iterative development with no specific planning involved. The Iterative and Incremental SDLC model unites an iterative design and workflow with an incremental build model. In this case, the team develops a product in cycles, building small parts in an evolutionary way. The prototype may not contain the exact logic of the finished product.

Systems development life cycle

Business analysts perform the most crucial part of the work at this stage. They actively communicate with a client, conduct meetings, and ask questions. The goal is to receive a precise application’s concept, document it, and present it to the team to rely on during the further stages. The SDLC models define how the process is organized, in which order the potential risks are eliminated, and the problems are solved.

The most flexible of the SDLC models, the spiral model is similar to the iterative model in its emphasis on repetition. The spiral model goes through the planning, design, build and test phases over and over, with gradual improvements at each pass. Developers are now responsible for more and more steps of the entire development process.

What is Application Lifecycle Management (ALM)?

Every stage has its own project plan and relies on the information from the previous stage. The main SDLC stages of this model include gathering and analyzing the requirements, system design, implementation, testing, deployment, and launch. Such a model is widely used in software development as it is simple to plan and manage. The process is also strictly documented and the processes and outcomes of each stage are clearly predefined. To create high-quality software, you need a process in place that helps you manage your time and resources. SDLC is a methodology that helps developers plan, create, test, and deploy high-quality software products at the lowest costs and as quickly as possible.

Together, they make an excellent approach to software development, but it’s apples and oranges separately. Scrum is a project management methodology, and XP is a development technique. Specialists who work actively at this phase are software engineers, system architects, database specialists, designers. And of course, BA, PM, and tech leads remain a permanent part of the software development process. One of the most flexible SDLC methodologies, Spiral takes a cue from the Iterative model and its repetition. Instead of beginning with complete knowledge of requirements, project development teams following the iterative methodology implement a set of software requirements.


It’s also in this phase when the database specification is developed to decide on data management and storage for future processing, retrieval, or evaluation. The purpose of the second stage is to outline the scope of the problem and identify solutions. Resources, costs, time, and other aspects should be considered here.

What are the 5 SDLC models

At Mind Studios, we mostly use the Agile SDLC model to develop software products for our clients. The software development life cycle or SDLC methodology defines the way a product is brought to life and maintained. It helps you turn creative ideas and market requirements into product functionality and features. The planning phase typically includes tasks like cost-benefit analysis, scheduling, resource estimation, and allocation. So, the Iterative SDLC model does not require a complete list of requirements before the project starts. The development process may start with the requirements to the functional part, which can be expanded later.


Like the Waterfall, V-shaped is a strict methodology with a cascading workflow. System integration testing is used to validate architecture design. Iterative SDLC Model breaks the software development process into smaller repetitive cycles. The abbreviation SDLC can sometimes refer to the systems development lifecycle, the process for planning and creating an IT system. The system typically consists of several hardware and software components that work together to perform complex functions. In the maintenance phase, among other tasks, the team fixes bugs, resolves customer issues, and manages software changes.

  • Considering that companies often outsource, meeting a customer face-to-face is problematic, but Agile offers video conferencing instead of audio calls to observe the body language.
  • If QA specialists opt for automated testing, they use numerous frameworks and solutions that ease the process.
  • All three attract developers as they allow for substantial iteration and testing before release onto the market or integrating a product part with a larger source code.
  • In addition, it’s usually project or delivery managers who are in charge of choosing the right approach.
  • Developers’ task is to assemble them into one working infrastructure by putting them into code.
  • Process checks include review of timelines and expenses, as well as user acceptance.

It’s particularly suited for large, complex, and expensive projects. The choice usually depends on the specific methodology being followed and how granularly a team or a project manager likes to break down the steps. The number of phases or stages in the Software Development Life Cycle (SDLC) can vary based on different methodologies and how granularly the steps are broken down. In the design phase, software engineers analyze requirements and identify the best solutions to create the software. For example, they may consider integrating pre-existing modules, make technology choices, and identify development tools.

Test Management

This is fulfilled by utilizing SRS (Software Requirement Specification). This is a sort of document that specifies all those things that need to be defined and created during the entire project cycle. The information from this analysis forms the building blocks of a basic project. Thus, in this stage, the basic project is designed with all the available information. Agile methodology is a practice which promotes continue interaction of development and testing during the SDLC process of any project.

What is the Waterfall Model? – Definition and Guide – TechTarget

What is the Waterfall Model? – Definition and Guide.

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Based on our experience, if you plan to cooperate with any outsourcing or software development company you should also have someone “technical” by your side. It will help both parties to avoid pain and frustration in the future. No matter which SDLC model you find most acceptable for your project, Echo can back your choice with a dedicated team of developers. Contact us today to discuss the optimal strategy of hiring tech experts for achieving your business needs. Once all the tests have passed, it’s time for the software to go live.

Top 7 SDLC Methodologies: Phases, Models and Advantages

Requirements Gathering stage need teams to get detailed and precise requirements. This helps companies to finalize the necessary timeline to finish the work of that system. The one thing that unites all these SDLC methodologies is the possibility to streamline complex processes by making use of various tools during each phase.