Systems Analysis & Design: Chapter 6
PP Questions & Answers
Agile Modeling - ANSWERSa collection of innovative, user-centered approaches to
system development.
Prototyping - ANSWERSan information-gathering technique useful in seeking:
- User reactions
- Suggestions
- Innovations
- Revision plans
Four types of prototyping - ANSWERS- Patched-up
- Nonoperational
- First-of-a-series
- Selected features
Patched-Up Prototype - ANSWERSa system that works but is patched up or patched
together; a working model that has all the features but is inefficient.
- users can interact with the system
- retrieval/storage of info. may be inefficient
Nonoperational Scale Models - ANSWERSa nonworking scale model that is set up to
test certain aspects of the design; produced when the coding required by the application
is too expensive to prototype but when a useful idea of the system can be gained
through prototyping of the input and output only.
First-of-a-Series Prototype - ANSWERSCreating a pilot; completely operational; useful
when many installations of the same information system are planned.
A full-scale prototype is installed in one or two locations first, and if successful,
duplicates are installed at all locations based on customer usage patterns and other key
factors.
Selected Features Prototype - ANSWERSBuilding an operational model that includes
some, but not all, of the features that the final system will have.
- Not all essential features are included
- Built in modules
- Part of the actual system
Problems with the SDLC - ANSWERS- Extended time required to go through DLC
PP Questions & Answers
Agile Modeling - ANSWERSa collection of innovative, user-centered approaches to
system development.
Prototyping - ANSWERSan information-gathering technique useful in seeking:
- User reactions
- Suggestions
- Innovations
- Revision plans
Four types of prototyping - ANSWERS- Patched-up
- Nonoperational
- First-of-a-series
- Selected features
Patched-Up Prototype - ANSWERSa system that works but is patched up or patched
together; a working model that has all the features but is inefficient.
- users can interact with the system
- retrieval/storage of info. may be inefficient
Nonoperational Scale Models - ANSWERSa nonworking scale model that is set up to
test certain aspects of the design; produced when the coding required by the application
is too expensive to prototype but when a useful idea of the system can be gained
through prototyping of the input and output only.
First-of-a-Series Prototype - ANSWERSCreating a pilot; completely operational; useful
when many installations of the same information system are planned.
A full-scale prototype is installed in one or two locations first, and if successful,
duplicates are installed at all locations based on customer usage patterns and other key
factors.
Selected Features Prototype - ANSWERSBuilding an operational model that includes
some, but not all, of the features that the final system will have.
- Not all essential features are included
- Built in modules
- Part of the actual system
Problems with the SDLC - ANSWERS- Extended time required to go through DLC
