Software development workflows can be categorized by different standards. Below is a brief introduction to the mainstream types:
-
Waterfall Model This is a traditional software development model. It divides the software development lifecycle into sequential phases: requirement analysis, design, coding, testing and delivery. Work on the next phase cannot start until the previous one is fully completed. Its major drawback is poor adaptability to frequently changing requirements.
-
Iterative Model Developed to address the flaws of the Waterfall Model, it splits the entire development work into multiple iterative cycles. Each iteration delivers a functional version of the software. It features greater flexibility and stronger responsiveness to changes.
-
Incremental Model Evolved based on the Iterative Model, the Incremental Model splits the software into multiple small modules. Each module goes through separate design and implementation before integrated testing is carried out. Its strengths lie in quick delivery of lightweight functional modules, as well as simpler management and maintenance.
-
Agile Model The Agile Model prioritizes rapid software delivery amid volatile requirements. It centers on team collaboration and human factors, enabling fast iterations and timely responses to changing demands.
Besides the above workflows, many other development models are widely adopted, including the Spiral Model, Fountain Model and DevOps. Each model comes with distinct advantages and disadvantages. The selection of a suitable workflow should be determined by the specific context and requirements of the project.