The waterfall model is a popular method of software development and maintenance. It is used extensively in projects where there are few or no uncertainties. Designers and developers complete one stage of development before moving on to the next. They review their work after each stage. The purpose of reviews is to monitor the development.
A distinguishing feature of the waterfall model is that development and testing phases do not overlap. The strictly linear structure has earned the model the name, linear-sequential life cycle model. The waterfall model is old. It originated during 1970s. It was the first process model.
This blog provides an overview of the advantages of implementing this structure for your software projects and concludes with a rundown of situations where it is appropriate to use the waterfall model:
1. The waterfall model is simple.
2. It is easy to understand and implement.
3. The model is rigid, therefore easier to monitor.
4. Each phase has a set of deliverables.
5. The review process maintains quality.
6. Phases do not overlap, therefore there is less confusion.
7. Very efficient development model for smaller projects.
8. Works well where requirements are known.
When it is smart to use the waterfall model:
1. When the requirements are fixed, clear, and well known.
2. When the underlying technology is well understood
3. When the project definition is right
4. When the resources are ample
5. When there is expertise available
6. When the project is short