What are the methods for performing requirements determination?
- traditional method
- contemporary method
- radical method
What are the types of traditional methods?
- Individual interview
- group interview
- firsthand observation
- document analysis
what is individual interview & cons of it?
conducting an interview for only 1 person
- contradicting & inconsistent
- new requirements need new interview session
what is group interview & the cons of it?
conducting an interview with a group of users. This allows agreement & disagreement. Present of synergy
- difficult scheduling
what is firsthand observation & the cons of it?
Observe user utilizing the system.
- limited time & time consuming
What is document analysis? What are the pros & cons?
Reviewing existing documentation on the system development.
- identify requirements, organizational values, reason for current system
. contradicting & duplications
. outdated
. incomplete methodologies
What are the types of contemporary methods?
- JAD meeting
- CASE Tool
- Prototyping
What is JAD?
- Joint Application Design meeting together with users, managers, system analysists, & developers.
- Use when there is unclear requirements
- highly focus, intensive group-oriented
What is CASE tool?
- Use during JAD session for system modeling, design & prototyping.
What is prototyping? What are the pros & cons?
Turning requirements into working system models
- unclear user requirements
- miscommunication
- complex design
. lack of documentation
. bypass SDLC checks
What are the types of radical methods?
- Business Process Reengineering
2. Disruptive technologies
What are BPR & Disruptive technology?
BPR: Achieving breakthrough with radical changes within business processes for products. Reduce redundant steps & combined steps.
Disruptive technology: Disrupt long-held rules to achieve radical changes.
