What is SDLC?
SDLC is a systematic software development process that ensures the quality and correctness of the software created. The SDLC process aims to produce high-quality software that meets customer expectations. System development should be completed within a predefined time frame and cost. The SDLC consists of a detailed plan that explains how to plan, build, and maintain a particular piece of software. Each phase of the SDLC life cycle has its own process and deliverables that feed into the next phase. SDLC stands for Software Development Life Cycle and is also referred to as Application Development life-cycle.
Defining the SDLC
What is SDLC | 7 Phases of SDLC | Betsol A systematic approach that creates a structure for developers to design, build and deliver high-quality software based on customer requirements and needs. The primary goal of the SDLC process is to produce cost-effective, high-quality products. The process includes a detailed plan that describes how to develop, maintain, and replace the software.
7 Phases of the SDLC (Software Development Life Cycle)
Phase 1: Project planning
Project Planning | First step in SDLC | BetsolThe first phase of the SDLC is all about “What do we want?” Project planning is a critical role in the software delivery lifecycle, as this is where the team estimates costs and defines requirements for new software.
Phase 2: Requirements gathering and analysis
Requirements gathering and analysis | The second step in the SDLC | Betsol The second step of the SDLC is to gather as much information as possible from the client's product requirements. Discuss every detail and specification of the product with the customer. The development team then analyzes the requirements with respect to the software design and code. Further investigation of the validity and possibility of incorporating these requirements into the software system. The main goal of this phase is for everyone to understand even the smallest detail of the requirement. Hardware, operating systems, programming and security are just some of the requirements.
Stage 3: Design
Design | The third step in the SDLC | BetsolIn the design phase (SDLC step 3), the program developer checks whether the prepared software meets all the requirements of the end user. In addition, if the project is technologically, practically and financially feasible for the customer. Once the developer has decided on the best design approach, he selects programming languages such as Oracle, Java, etc. to suit the software.
Once the design specification is ready, all stakeholders will review the plan and provide feedback and suggestions. It is absolutely mandatory to collect and incorporate stakeholder input into the document as a small mistake can lead to cost overruns.
Phase 4: Coding or Implementation
Coding or Implementation | The fourth step in the SDLC | BetsolTime to code! It means translating the design into a computer-readable language. In this fourth phase of the SDLC, tasks are divided into modules or units and assigned to different developers. Developers then start building the entire system by writing code using their chosen programming languages. This phase is considered one of the longest in the SDLC. Developers need some predefined coding guidelines and programming tools like interpreters, compilers, debugger to implement the code.
Developers can show business analysts the work done in case any modifications or improvements are needed.
Phase 5: Testing
Testing | Fifth Step in SDLC | Betsol Once the developers have built the software, it is deployed in a test environment. Then the test team will test the functionality of the entire system. In this fifth phase of the SDLC, testing is done to ensure that the entire application works according to the customer's requirements.
After testing, QA and testing team can find any bugs or defects and communicate the same to developers. The development team then fixes the bugs and sends it to QA for retesting. This process continues until the software is stable, error-free and working according to the business requirements of the system.
Phase 6: Deployment
Development | The sixth step in the SDLC | BetsolSixth SDLC Phase: Once testing is complete and the product is ready for deployment, it is released for customers to use. The size of the project determines the complexity of the deployment. Users are then provided with training or documentation to help them operate the software. Again, a small round of testing is done in production to ensure there are no environmental issues or any impact of the new release.
Phase 7: Maintenance
Maintenance | Seventh Step in SDLC | BetsolThe real problem starts when the customer actually starts using the developed system and they need to be solved from time to time. Maintenance is the seventh phase of the SDLC where the developed product is cared for. As the end user environment or technology changes, the software is updated
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