Software Development Life Cycle SDLC: A Complete Guide


Scrum defines specific roles and events, known as ceremonies, as part of its practice. Agile teams often combine these together to adapt a bespoke process that fits them best. In high-maturity enterprises, this phase is almost invisible; software is deployed the instant it is ready. Ideally, Project Managers and Development staff collaborate with Operations and Security teams to ensure all perspectives are represented.

Because this is the last stage of the SDLC,
it’s important that end users of a system are satisfied with their products. The System Analyst will lead a system
analysis to ascertain how to best meet the functional requirements of the
project. This analysis provides the company with a solid understanding of the
necessary specifications and features needed for the final system to work
properly. It is at this point that the Software
Requirements Specification (SRS) document is produced. Throughout all this, the Business Analyst
serves as the primary liaison between he development company and its client,
communicating the needs of the business back to the development team.

V-Shaped Model

Prior to the rise of CI, development teams would write thousands of lines of code, then attempt to integrate them. Integrating that much work all at once is tedious, painful, and prone to error. CI is an automation that builds software every time the code changes. Following proper CI practices, work stops until the build is successful.

sdlc steps

This way, the overall software development process becomes faster, from building to testing and deployment. Hence, it improves your time-to-market and helps you get the upper hand in the competition. Only when one stage completes and approved by the manager can the developers and engineers move to the next stage. The agile model requires the team to work in sprints that last for 2 to 4 weeks, each with unique requirements and goals. At the end of a sprint, the product owner verifies the code and greenlights its deployment to users. The team then gathers feedback and starts preparing for the next sprint.

How does SDLC address security?

The baseline may include start date, end date, phase/stage duration, and budget data. These baseline assists the project manager in monitoring performance. OpenText supports each of these software development life cycle phases in our value stream management platform OpenText™ ValueEdge. Hence, the Agile SDLC model has recently become increasingly popular and in demand. This demand can be primarily linked to the agile model’s flexibility and core principles. So rather than creating a timeline for the project, agile breaks the project into individual deliverable ‘time-boxed’ pieces called sprints.

sdlc steps

The main focus of this SDLC phase is to ensure that needs continue to be met and that the system continues to perform as per the specification mentioned in the first phase. This stage gives a clearer picture of the scope of the entire project and the anticipated issues, opportunities, and directives which triggered the project. Here, are prime reasons why SDLC is important for developing a software system. This model is popular today and offers speed to create and deploy the product and flexibility to adapt quickly to changes. And if any of these steps are not done well, it can affect the end result and customer experience. Several variants of Agile have emerged since the signing of the Manifesto.

Systems analysis and design

If you’re developing for clients, you may be restricted to specific schedules or budgets, while in-house you can typically prioritize as you see fit. Empower your people to go above and beyond with a flexible platform designed to match the needs of your team — and adapt as those needs change. In addition, ValueEdge offers reporting and analytics features that can help improve project visibility.

The DDS will be a pivotal part of the production process (Stage 4), as developers will lean on it as their primary resource to build their code. Developers must also refer back to the SRS document (from Stage 2) to ensure the product’s design safeguards the team from the anticipated issues and risks noted earlier. Once the software testing phase is over and no bugs or errors left in the system then the final deployment process starts. Based on the feedback given by the project manager, the final software is released and checked for deployment issues if any. The software development team will take the client’s feedback, if any, and then improve the software.

Software Quality

While time-consuming, prototyping is much less expensive than making radical changes after the development phase. Fortify offers a complete toolset of application security solutions to shift security left in your SDLC. By design, Fortify and other OpenText tools bridge the gap between existing and emerging technologies—which means you can innovate faster, with less risk, in the race to digital transformation. While SDLC and project management are two different concepts, they often work together. In fact, many project managers use SDLC as a guide for managing their projects.

sdlc steps

Widely-used by developers, Scrum is a cyclical approach to development. Projects are executed in sprints, which are typically short two- to four-week periods during which each developer focuses on a single project at a time. Initiatives are pulled from a backlog (phase one), planned (phase two), and then developed during a sprint (phases three to six).


The life cycle defines a method for improving the quality of software and the all-around development process. Implementation phase is the core of the software development process. At this stage, engineers work through the set list of tasks to transform the sdlc steps pre-approved architecture into a functional system. Software development life cycle (SDLC) is a method for organizing all the phases of the software development process (using various methodologies and tools) to improve the efficiency of production.

  • Big bang model is focusing on all types of resources in software development and coding, with no or very little planning.
  • Quality analysis includes testing the software for errors and checking if it meets customer requirements.
  • So there could be a ton of bugs if you don’t have all these and especially if there’s no documentation in this so you didn’t write anything down, you didn’t actually have this whole plan written out.
  • Since computer systems are complex, many link with different traditional systems supplied by various software vendors.
  • After retrieving beneficial feedback, the company releases it as it is or with auxiliary improvements to make it further helpful for the customers.
  • The software development lifecycle (SDLC) is the cost-effective and time-efficient process that development teams use to design and build high-quality software.

Every phase of SDLC will stress security – over and above the existing set of activities. Incorporating S-SDLC into an organization’s framework has many benefits to ensure a secure product. A lot of times if you’re for example developing an additional feature you would actually cycle all the way back to the requirements and then start this process over. If you’re looking to implement the steps of
the SDLC in your workplace, be sure to follow the tips as listed above. These
seven steps include every phase of the SDLC process in detail so that you can
start incorporating it into your own business practices. It is at the design stage that the System
Analyst begins to play a large role.

What Is the Secure SDLC (Software Development Life Cycle)?

The SDLC process is very involved and
includes a number of specific steps that must be followed in order for a
project to be completed well. After the code is generated, it is tested against the requirements to make sure that the products are solving the needs addressed and gathered during the requirements stage. Once the requirement is understood, the SRS (Software Requirement Specification) document is created. The developers should thoroughly follow this document and also should be reviewed by the customer for future reference. The Software Development Life Cycle (SDLC) is basically a cost-effective process that is used to design and build good software.


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