1. Incremental model is also called as iterative enhancement model.
2. In this model the software is built in an incremental fashion.
3. Fig shows the project is divided into small subsets called as increments and are implemented by individually.
4. The incremental model combines elements of the linear sequential model with the iterative philosophy of prototyping,
5. Each linear sequence produces deliverable increments of the software.
6. The incremental model is iterative in nature. When an incremental model is used, the first increments are often a ―core product.‖
7. Thai is basic requirements are addressed, but many supplementary features remain undelivered. Incremental development is useful when staffing is unavailable for a complete implementation by the business deadline that has been established for the project.
8. In this model the product is designed, implemented, integrated and tested as a series of incremental builds.
9. Each build consist of code pieces from various modules interacting to provide a specific functional capability.