Which one of the following models is not suitable for accommodating any change?OptionsWaterfall ModelPrototyping ModelBuild & Fix ModelRAD Model

To determine which model is not suitable for accommodating any change, let's briefly analyze each of the options provided:

1. Waterfall Model: This model follows a linear and sequential approach where each phase must be completed before moving on to the next. It is not very flexible in accommodating changes once a phase has been completed.

2. Prototyping Model: This model allows for iterative development and frequent revisions. Changes can be easily accommodated based on user feedback, making it suitable for accommodating changes.

3. Build & Fix Model: This model emphasizes rapid development without much planning or architecture. While it might allow for some changes mid-development, it is generally not structured enough to effectively manage changes.

4. RAD (Rapid Application Development) Model: This model focuses on quick development and iteration. It supports user feedback and adjustments throughout the development process, making it very accommodating to changes.

Final Answer

The model that is not suitable for accommodating any change is the Waterfall Model. It operates in a strict sequence and is inflexible when it comes to integrating changes once a stage has been completed.