Based on the ArchiMate 3 documents or objectives, a data object is a passive structure element that represents a piece of data that can be manipulated by behavior elements such as application functions or services. A passive structure element is a structural element that cannot perform behavior. Active structure elements can perform behavior on passive structure elements.

References: ArchiMate® 3.2 Specification, Chapter 4 Generic Metamodel, Section 4.1 Behavior and Structure Elements, Subsection 4.1.1 Active Structure Elements  1 ; ArchiMate® 3.2 Specification, Chapter 10 Application Layer, Section 10.2 Passive Structure Elements  1 .

According to the ArchiMate 3.2 Specification 1 , a capability is an ability that an active structure element, such as an organization, person, or system, possesses. A requirement is a statement of need that must be realized by a system. Capabilities and requirements are both motivation elements that represent the reasons for designing and implementing an architecture.

The ArchiMate language defines two relationships that are permitted between capabilities and requirements:

Assigned to: This relationship links a requirement to a core element (such as a business actor, a business service, a business process, an application service, an application component, etc.) that is responsible for realizing it. The core element may be assigned to a capability that enables it to realize the requirement.

Realizes: This relationship links a capability to a requirement that is fully or partially realized by that capability.

Based on the ArchiMate 3 documents or objectives, the generic metamodel defines two main types of elements: structure and behavior. Structure elements represent the structural concepts that model the static construction or composition of concepts of the same or different types. Behavior elements represent units of activity performed by one or more active structure elements.

References: ArchiMate® 3.2 Specification, Chapter 4 Generic Metamodel, Section 4.1 Behavior and Structure Elements  1 ; ArchiMate® 3.0.1 Specification - The Open Group  2 .