Chapter 8 - Prototyping
- Kinds of Information Sought
- Initial User Reactions
- User Suggestions
- Innovations
- Revision Plans
- Approaches to Prototyping
- Kinds of Prototypes
- Ptached-Up Prototype - system works but is patched together
- Nonoperational Prototype - nonworking scale model
- First-of-a-series Prototype - pilot
- Selected Features Prototype - operational model that includes some but not all features (usually modular)
- Prototyping as an Alternative to the Systems Development Life Cycle
- SDLC takes a long time to go through all phases
- user requirements change over time
- Developing a Prototype
- Guidelines for Developing a Prototype
- Work in manageable modules
- Build the prototype rapidly (RAD tools)
- Modify the prototype in successive interations
- stress the user interface
- Disadvantages of Prototyping
- Managing the Project
- Adopting an Incomplete System as Complete
- Advantages of Prototyping
- Changing the System Early in its Development
- Scrapping Undesirable Systems
- Designing a Systems for Users' Needs and Expectations
- Users' Role in Prototyping
- Interaction with the Prototype
- Experiementing with the prototype
- Giving open reactions to the prototype
- Suggesting additions to and/or deletions from the prototype
- Prototyping and the "Year 2000 Crisis"
Exercises: (due - noon Oct. 8, 1998)
e-mail to summers_wayne@ColumbusState.edu your answers to the following problems: #3 on page 218
turn in on Oct. 8th a solution to Group Project # (this may be completed in a small group of 3 to 4 students)
Explore the MRE HyperCase company and e-mail the answers to the questions on page 216[This can be done in a group of 2-3]