a requirement is anything that someone desires.
Requirements are seen as propertie
The requirements express the users necessities and restrictions that are placed on the system.
Requirements can be divided into:
depends on the point of view
A requirement that for a stakeholder can be perceived as being functional, can be considered as non-functional for a different one.
deally, functional requirements must be independent of design and implementation aspects.
ot mention any technological issue.
A functional requirement describes a functionality to be made
available to the users of the system.
, if there are no contradictions among its elements;