Types of Evolutionary Process Models
- Iterative Model
- Incremental Model
- Spiral Model
Iterative Model
In the iterative model first, we take the initial requirements then we enhance the product over multiple iterations until the final product gets ready. In every iteration, some design modifications were made and some changes in functional requirements is added. The main idea behind this approach is to build the final product through multiple iterations that result in the final product being almost the same as the user wants with fewer errors and the performance, and quality would be high.
Incremental Model
In the incremental model, we first build the project with basic features and then evolve the project in every iteration, it is mainly used for large projects. The first step is to gather the requirements and then perform analysis, design, code, and test and this process goes the same over and over again until our final project is ready.
Spiral Model
The spiral model is a combination of waterfall and iterative models and in this, we focused on risk handling along with developing the project with the incremental and iterative approach, producing the output quickly as well as it is good for big projects. The software is created through multiple iterations using a spiral approach. Later on, after successive development the final product will develop, and the customer interaction is there so the chances of error get reduced.
What are Evolutionary Process Models?
Evolutionary model is a combination of Iterative and Incremental model of software development life cycle. In this article, we are going to understand different types of evolutionary process models with the help of examples.