There are several types of prototypes that can be used in systems analysis and design including patched-up prototypes, nonoperational prototypes, first-of-a-series prototypes, and selected features prototypes. Prototypes allow users to interact with and provide feedback on early versions of a system to help identify requirements, innovations, and needed revisions before significant resources are spent on development. Prototyping is best for systems that are uncertain or unstable, while established systems with certain requirements are less suitable for prototyping.

1. PROTOTYPE CS343 System Analysis and Design

3. Kinds of information sought User Reactions User Suggestions Innovations Revision Plans

4. Kinds of Prototypes Patched-up Prototype Nonoperational Prototype First-of-a-series Prototype Selected features Prototype

10. What system is suitable for prototype? Many times before Certain and stable Structured Only a few times before Uncertain and unstable Unstructured or semi-structured Similar Design Experience Environment Decision Making Less suitable More suitable