Concept

Definition

Domain Concept

Domain Concept is a kind of thesaurus that is used as pointers to concepts; we could unify different concepts or terms for the same terms by using synonym relationships among them.

Stakeholder

Groups of stakeholders, they specified what is expected from a system

Goal

Goals are indicative statements to identify and correlate requirements to be achieved by the system under development.

Requirement

(Functional Requirement): is an outcome of behavior that shall be provided by a function of a system, A non-functional requirement (also a quality requirement)

Function Requirements

Define what a product must do.

Requirements artifacts comprise all concepts related to requirements knowledge

Non-Functional Requirements

Describe the quality attributes of a system.

Actor

The real users who interact with the system

Activity

High Level Function -> Sub-function -> Process -> Activity

Constraint

Constraints of the functionality.

Scenario

Scenario A textual description of a sequence of user actions that leads to the desired result.