Software Development Life Cycle Models

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Software Development Life Cycle (SDLC) models guide the development process to ensure high-quality software. Different SDLC models are chosen based on the specific needs of the project and organization. In this section, we explore the popular SDLC models, providing you with an understanding of their unique aspects, advantages, and drawbacks.

Waterfall Model

Learn about the Waterfall model, the earliest SDLC approach that is linear and sequential. This model is simple to understand and use, with distinct goals for each phase of development.

Iterative Model

Explore the Iterative model, an SDLC model that designs, implements and tests an increment of the software during each iteration, progressively improving the software with each cycle.

Spiral Model

Understand the Spiral model, a risk-driven SDLC model that combines aspects of the Waterfall and Iterative models with a focus on early identification and reduction of project risks.


Discover the V-Model, a type of SDLC model where the execution of processes happens in a sequential manner in a V-shape, emphasizing verification and validation.


Delve into DevOps, a modern SDLC model that focuses on bringing the development and operations teams together to ensure continuous integration, delivery, and deployment.