Chapter 8: Building Information Systems Flashcards
3 Tenets of Business Process Redesign?
Identify the processes
Analyse the processes
Design the new processes
What is the prototyping approach?
Build working prototype for users to evaluate and use feedback to make changes
What is the Agile Development Approach?
Rapid delivery of working software by breaking down into smaller projects done quickly with continuous feedback
Principles:
Interaction/individuals > processes
responsiveness > adherence to plans
customer collaboration > contract negotiation,
functioning software > extensive documentation
What is meant by parallel conversion?
Old and new system used simultaneously
What is meant by cut-over/flash cut/big bang conversion?
Immediately replace all modules to new system
What is meant by phased conversion?
Break new into modules, implement one by one
What is meant by pilot conversion?
Introduce new by business unit
What are the steps of the systems development process (traditional)?
- System Analysis
- System Design
- Programming
- Testing
- Conversion
- Production/Maintenance
What is a business process?
Sequence of atleast 2 activities which starts with a request and ends with a fulfilment of the request.
What are the elements of an activity?
Input, transformation/resource allocation, output