IT:AD:Functional Requirements

(UP)

* See also:

• IT:AD:Requirements
• IT:AD:Domain Functional Requirements
• IT:AD:System Functional Requirements
• IT:AD:Supplemental Specifications
• IT:AD:System Functional Requirements
• IT:AD:Non-Functional Requirements

Functional requirements are those that describe the Functions a System performs, as opposed to Constraints and Qualities, which are described in IT:AD:Supplemental Specifications.

It's important to understand that there are more than one kind of functional requirements.

Specifically, there are the following:

• Domain Functional Requirements:
  • This is what is most commonly understood as Functional Requirement, but there are also:
• System Functional Requirements.
  • Examples of System functionality that is in this set are:
    • DateTime Service
    • Caching Service
    • Host Settings Service
    • Settings Service
    • Data Persistence Service
    • Diagnostic Logging Service
    • Authentication Service
    • Authorisation Service
    • Auditing Service
    • Cryptographic Service
    • Help Service
    • Licensing Service
    • etc.