System Development Life Cycle (SDLC) Models
A System Development Life Cycle (SDLC) is a framework for software development, which includes the following types:
- Waterfall Model: The linear sequential model should be used for projects with well-defined requirements and a limited scope. It is typically used for projects with well-defined requirements.
- Agile Model: Iterative models are best suited to projects with rapidly changing requirements and high levels of uncertainty. This model allows for flexibility and constant adaptation to changing requirements.
- Spiral Model: Waterfall and Agile are combined in this process, where development takes place in multiple iterations. Each iteration involves risk analysis, design, and implementation.
- V-Model: Each phase of the development process is represented by a V shape in this graphical representation of the Waterfall Model.
- Incremental Model: A software development model is iterative, where each increment builds upon the previous one.
- Rapid Application Development (RAD) Model: Rapid prototyping and iterative development are emphasized in this model for developing software quickly.
- Prototype Model: In this model, a working prototype of the software is quickly developed, and then refined and updated based on feedback from users. A project’s specific needs determine which SDLC model to use, since each model has its own strengths and weaknesses.