Chapter 8 - Prototyping

1. Kinds of Information Sought
2. Initial User Reactions
   • User Suggestions
   • Innovations
   • Revision Plans
3. 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
4. Developing a Prototype
   • Guidelines for Developing a Prototype
     1. Work in manageable modules
     2. Build the prototype rapidly (RAD tools)
     3. Modify the prototype in successive interations
     4. 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
5. Users' Role in Prototyping
   • Interaction with the Prototype
     1. Experiementing with the prototype
     2. Giving open reactions to the prototype
     3. 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]