Explain about the incremental model

Q. Explain about the incremental model.

ð     Diagram:-

 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)  In this model the product is designed, implemented, integrated and tested as a series of                          incremental builds.

       5) The incremental model combines elements of the linear sequential model with the iterative                  philosophy of prototyping,

       6)   Each linear sequence produces deliverable increments of the software.

       7) The incremental model is iterative in nature. When an incremental model is used, the first                    increments are often a “core product”.

       8)   Thai is basic requirements are addressed, but many supplementary features remain

undelivered.

       9)   Incremental development is useful when staffing is unavailable for a complete implementation              by  the business deadline that has been established for the project.

10) Each build consist of code pieces from various modules interacting to provide a specific   functional capability.

·         Example:

Word processing software developed using the incremental paradigm, might deliver basic file

management editing and document production in the first increment, more sophisticated editing and document production capabilities in second increment;

Spelling and grammar checking in third increment and advanced page layout capability in fourth increment and at the end the software get’s ready to use.