The software development life cycle (SDLC) serves as an IT infrastructure that identifies the work to be conducted in every stage in the software development process. In SDLC, there is a structure followed by the development team within the different software teams involved in the project. The different teams prepare a detailed plan citing all the necessary data regarding the development, maintenance, and specific software to be used.
The software development life cycle lists the systematic tasks to do in achieving the software quality and the overall development process. This is popularly known as the software development process.
Common stages of SDLC models
Whatever is the selected SDLC model, each takes the basic stages.
#1. Planning and analyzing project requirements
Every SDLC model begins with analysis. The stakeholders of the chosen model meet to discuss the final software product’s requirements. At the initial stage, the main objective is citing the full details of the system needs. Also, it is necessary to ensure that all the different teams involved in the project have all the necessary info they need to carry out the tasks and how each task will be executed. Oftentimes, the quality assurance specialists play a critical role in the discussions who evaluate the process and recommend suggestions as necessary even at the development stage.
#2. Designing the project framework
This second SDLC phase is where the software developers conduct the actual design of the project infrastructure. Various technical inquiries are raised during this stage and discussed in detail to both the stakeholders and the customers. Also, other factors are being defined such as project technologies, the delegation of team tasks, limitations, schedules, and budget. Most project decisions are held based on predefined requirements.
#3. Development and programming
Once the requirements are approved, the process proceeds to the next stage. This is where the actual development takes place. The developers begin the source code writing while considering the pre-approved requirements. The system administrators modify the software environment while front-end programmers create the program user interface and the logic for improved interaction with the server.
In the program development, it undergoes four stages such as establishing algorithm, writing source code, compiling information, and testing and debugging.
The testing stage involves the debugging system. All the code errors that have been overlooked during the development are reviewed, documented, and returned to the developers to do some fixes. The testing process continues until all the critical issues are resolved and stabilize the software workflow.
Once the program is completed without critical issues, it is time to release the software product for end-users. Following the launch of the new version of the program, the tech support team uses it. This group is in-charge in providing user feedback. The tech support team seeks consultations and supports users during product implementation. Also, at this stage, updates of selected components are included. This ensures the software is updated and free from any potential security breach.
Software maintenance is conducted for future reference. This includes software enhancements and new changes or upgrades that take longer than the expected time to build the initial software development.