What is SDLC? Software Development Lifecycle Explained

After the development phase, an app’s code gets released into the production environment. Then the quality analysts start looking for errors, bugs, system development life cycle example and other possible issues within the software. Next, they check the features against customer expectations and verify the product requirements.

system development life cycle example

If you are looking for a reputed software development partner, you can connect with us for a free 30 minutes consultation. Our team has been supporting and maintaining the platform for 4+ years already. The cooperation between the customer and our outsourced development team has strengthened over the years after the product launch and turned into a strategic and friendly relationship. At the solution stabilization stage, a test automation specialist ensured that the system worked as intended.

System Development Life Cycle: Development

For example, testing may involve a defined number of end users and use case scenarios in order to be deemed successful, and maintenance may include quarterly, mandatory system upgrades. During the Analysis stage, the focus is on gathering and understanding the requirements of the system. This includes conducting interviews, studying existing processes, and identifying stakeholders’ needs.

It entails determining and defining the project scope in order to develop a complete action plan for the project, as well as identifying the issues that the solution will address. This word has been around for many decades and stems from a time when organizations were much more centralized. Still, as IT as a field and IT services as a market have evolved, SDLC has become an integral aspect of how custom software development company develop software solutions.

Disadvantages of the Agile Development Model:

However, it also has some drawbacks that should be considered before implementing this methodology. The Agile model prioritizes collaboration and the implementation of small changes based on regular feedback. The Agile model accounts for shifting project requirements, which may become apparent over the course of SDLC. Verification and validation methodology requires a rigorous timeline and large amounts of resources. It is similar to the Waterfall model with the addition of comprehensive parallel testing during the early stages of the SDLC process. This approach implies a linear type of project phase completion, where each stage has its separate project plan and is strictly related to the previous and next steps of system development.

  • Projects pass through four main phases again and again in a metaphorically spiral motion.
  • Because this document determines all future development, the stage cannot be completed until a conceptual design review has determined that the system specification properly addresses the motivating need.
  • Other than this, tracking and reviewing the network’s performance, environment stability, and product behavior post launching is advisable.
  • Agile is gradually becoming a mainstream technology expanding its reach beyond coding.
  • This can include resolving new issues that arise as a result of user reports or dealing with leftover bugs that were not able to be corrected before launch.
  • Larger systems may require longer maintenance stages compared to smaller systems.

After passing this stage, the software is theoretically ready for market and may be provided to any end-users. During the testing stage, developers will go over their software with a fine-tooth comb, noting any bugs or defects that need to be tracked, fixed, and later retested. The analysis stage includes gathering all the specific details required for a new system as well as determining the first ideas for prototypes. Other steps which may appear include project initiation, functional specifications, detailed specifications, evaluation, end-of-life and other steps that can be created by splitting previous steps apart further. It’s critical to follow the seven phases of the System Development Life Cycle whenever you’re working on a new product.


In addition, the team monitors overall system performance, security, and user experience to identify new ways to improve the existing software. 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. They will look at how to best integrate the new software into any existing IT infrastructure the organization may have. Before starting development on a new system, it’s critical to understand how an SDLC will fulfil the overall requirements and help achieve the best result.

Phases 4 through 7 represent an iterative process whereby a prototypical ES is evolved, and the final prototype developed through these iterative phases is installed in an operating environment. The next section presents more detailed descriptions of each phase and discusses existing literature and findings in light of these phases. The SDLC process is particularly relevant to the EHR systems because hospitals constantly need to refine their practices to ensure that they are able to provide maximum benefits to their patients. The traditional SDLC cycle involves investigating, analyzing, designing, implementing, and maintaining the system. This is important for the information technology teams at these health centers who are responsible for refining the EHR systems in a manner that maximizes their utility at their particular organization. Since patient needs, staffing, billing, and hospital size and resources are constantly changing, the information system needs to constantly change as well in order to ensure that these needs could be met.

Life Cycle of System Analysis and Design

Now that you know the basic SDLC phases and why each of them is important, it’s time to dive into the core methodologies of the system development life cycle. That is why it’s highly recommended that project managers engage a dedicated team of professional developers. Such a team will possess enough expertise and knowledge to launch a first-class software product that perfectly corresponds to all your expectations, needs, and goals. Successful organizations can take this process to the next level to embrace changes more effectively.

system development life cycle example

SDLC provides a number of advantages to development teams that implement it correctly. The Big Bang model is incredibly flexible and doesn’t follow a rigorous process or procedure. It’s mostly used to develop broad ideas when the customer or client isn’t sure what they want. Developers will choose the right programming code to use based on the project specifications and requirements.

What is system development life cycle testing?

Including this, the development team can prepare for the product launch at this stage itself. In the design phase, developers focus more on the threat modeling process to detect and eliminate possible threats or prepare a mitigation plan. As a result, it becomes easier for software engineering teams to create strategies to address them effectively.

SDLCs can also be more specifically used by systems analysts as they develop and later implement a new information system. Again, since SDLCs utilize extensive paperwork and guideline documents, it’s a team effort and losing one even major member will not jeopardize the project timeline. Developers clearly know the goals they need to meet and the deliverables they must achieve by a set timeline, lowering the risk of time and resources being wasted. T’s important that the software overall ends up meeting the quality standards that were previously defined in the SRS document. By developing an effective outline for the upcoming development cycle, they’ll theoretically catch problems before they affect development.

SDLC: 7 Phases or Stages of the System Development Life Cycle, Models, Perks & More

During the analysis phase, a programmer develops written requirements and a formal vision document via interviews with stakeholders. The project manager is the overall control agent for a strong SDLC process. The System Development Life Cycle (SDLC) provides a well-structured framework that gives an idea, of how to build a system.

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