Also called production release, the stable release is the last release candidate (RC) which has passed all stages of verification and tests. Shaping is the process of preparing work before being handed over to designers and engineers. Shaped work spells out the solution’s main UI elements, identifies rabbit holes, and outlines clear scope boundaries. Such comments are crucial for uncovering hidden surprises that may derail the project.

software life cycle definition

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. The best method for ensuring that all tests are run regularly and reliably, is to implement automated testing. There is no more measurable part of an organization than the sales team. In this article, We’ve listed the top five most popular SDLC models below. The following figure is a graphical representation of the various stages of a typical SDLC. Shape Up is a two-track system where shapers and builders work in parallel.

What are the Benefits of the Software Development Lifecycle?

So rather than creating a timeline for the project, agile breaks the project into individual deliverable ‘time-boxed’ pieces called sprints. This model prioritizes flexibility, adaptability, collaboration, communication, and quality while promoting early and continuous delivery. Ultimately, all this ensures that the final product meets customer needs and can quickly respond to market demands.

Developers are now responsible for more and more steps of the entire development process. At this stage, the goal is to deploy the software to the production environment so users can start using the product. However, many organizations choose to move the product through different deployment environments such as a testing or staging environment. ” This phase of the SDLC starts by turning the software specifications into a design plan called the Design Specification. All stakeholders then review this plan and offer feedback and suggestions. It’s crucial to have a plan for collecting and incorporating stakeholder input into this document.

Software development life cycle: Agile model

Expected test results are compared to actual and results are gathered to report back to development teams. Meanwhile, agile enables flexibility, while each iteration is separated by sprints and is well suited for both long and short term projects. However, agile is high in development cost, needs skilled teams, and can be exhausting for teams to work on sprints. The development team must determine a suitable life cycle model for a particular plan and then observe to it. ALM includes the entire lifecycle of the application and continues beyond SDLC. In the design phase, software engineers analyze requirements and identify the best solutions to create the software.

software life cycle definition

Prior to the 1950s, computing was not elaborate enough to necessitate a detailed approach like the SDLC. As the complexity and scale of programming grew, the concept custom ai solutions of structured programming emerged. Over time, structured programming demanded more tactical development models, thus sparking the beginnings of the SDLC.

Stage 6: Deployment and Maintenance of Products

Performance testing, to eliminate any processing hangs or lags, should be conducted on several elements of the application to ensure that they work together flawlessly. The testing phase helps in reducing the number of bugs and glitches seen by customers. A prototype is similar to one of the early versions of software in the Iterative software development approach. It gives you a general concept of how the application appears and functions. In the iterative process, each development cycle produces an incomplete but deployable version of the software. The first iteration implements a small set of the software requirements, and each subsequent version adds more requirements.

software life cycle definition

The software development life cycle (SDLC) is a useful tool for creating high-quality software. This tool gives software developers a framework for guiding them through the development process. The agile methodology produces ongoing release cycles, each featuring small, incremental changes from the previous release. The agile model helps teams identify and address small issues in projects before they evolve into more significant problems. Teams can also engage business stakeholders and get their feedback throughout the development process.

Alternative methodologies

A feasibility study determines whether creating a new or improved system is appropriate. This helps to estimate costs, benefits, resource requirements, and specific user needs. They analyze the requirements to identify smaller coding tasks they can do daily to achieve the final result.

  • In addition, it ensures that security assurance activities such as code review, architecture analysis, and penetration testing are integral to development efforts.
  • SDLC methodologies fit within a flexibility spectrum ranging from agile to iterative to sequential.
  • In the iterative process, each development cycle produces an incomplete but deployable version of the software.
  • Training usually covers operational training for support staff as well as end-user training.

The lack of extensive pre-planning generally allows software to be written much faster and makes it easier to change requirements. Other methodologies include waterfall, prototyping, iterative and incremental development, spiral development, rapid application development, and extreme programming. Application lifecycle management (ALM) is the creation and maintenance of software applications until they are no longer required. It involves multiple processes, tools, and people working together to manage every lifecycle aspect, such as ideation, design and development, testing, production, support, and eventual redundancy.

Phase 1: Plan

The final phase of the SDLC is to measure the effectiveness of the system and evaluate potential enhancements. For example, as the system analyst of Viti Bank, you have been tasked to examine the current information system. Customers in remote rural areas are finding difficulty to access the bank services. It takes them days or even weeks to travel to a location to access the bank services. Next, let’s explore the different stages of the Software Development Life Cycle.

But the SDLC framework can and often is incorporated into the agile development methodology. Agile organizations break the proposed product into small development cycles called sprints. The agile model was mainly designed to adapt to changing requests quickly. The main goal of the Agile model is to facilitate quick project completion.

What Is the Software Development Life Cycle? SDLC Explained

The development team combines automation and manual testing to check the software for bugs. Quality analysis includes testing the software for errors and checking if it meets customer requirements. Because many teams immediately test the code they write, the testing phase often runs parallel to the development phase. The software development life cycle (SDLC) is the process of planning, writing, modifying, and maintaining software.

Phase 1: Requirement Analysis

The building phase takes the code requirements determined earlier and uses those to begin actually building the software. This idea of ‘baking-in’ security provides a ‘Secure SDLC’- a concept widely recognized and adopted in the software industry today. A secure SDLC is achieved by conducting security assessments and practices during ALL phases of software development.


The deliverable from the engineering organization is frequently in the form of a golden master media used for duplication or to produce the image for the web. Rapid application development (RAD) is a software development methodology, which favors iterative development and the rapid construction of prototypes instead of large amounts of up-front planning. The “planning” of software developed using RAD is interleaved with writing the software itself.