Chapter3Chapter 5 Evolutionary Requirements

The FURPS+ Model

Functional

1. features
2. capabilities
3. security

Usability

1. human factors
2. help
3. documentation

Reliablity

1. failure frequency
2. recoverability

Performance

1. response times
2. throughput
3. accuracy
4. availability
5. resource utilization

Supportablity

1. adaptablity
2. maintainablity
3. internationalization
4. configurability

How are Requirements Organized in UP Artifacts

1. Vision
2. Use-Case Model
3. Glossary
4. Supplementary Specification
5. Business Rules

Chapter6 Use-Case

Elements

1. Actors
2. Scenarios
3. Use Cases

Why use Cases

1. more user centric
   1. who is using the system
   2. what are their goals
   3. what are their typical scenarios of use
2. to discover and define functional requirements

Fully-Dressed Use Cases