Identifying design requirements
The design requirements specify the functions that the design must perform and the objectives that the design must meet.
There are two types of requirements: functional requirements and nonfunctional requirements. Functional requirements specify the objectives or functions that a design must meet. Nonfunctional requirements define how the design accomplishes the functional requirements.
Typical functional requirements include the following:
- Business goals
- Business rules
- Legal, regulatory, and compliance requirements
- Application system requirements
- Technical requirements
- Administrative functions
Typical nonfunctional requirements include the following:
- Performance
- Security
- Capacity
- Availability
- Manageability
- Recoverability
When ...
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