I

Typical sequence of messages (primitives or notifications) between interacting entities as a solution to often-posed interaction needs.

Note: Usually, in an interaction pattern the entities follow pre-defined roles (e.g. consumer/provider, publisher/subscriber) and associated constraints (e.g., order and direction of primitives/notifications).

Source: Industrie 4.0 – Begriffe/Terms, VDI Statusreport Industrie 4.0 (April 2021)

Textual or formal specification of constraints or conditions on the interactions between entities that are valid in a specified interaction domain.

Source: Industrie 4.0 – Begriffe/Terms, VDI Statusreport Industrie 4.0 (April 2021)

Flow rules and the constraints in the exchange of messages (primitives and notifications) including the specification of their syntax and semantics and the roles of the interacting entities.

Note: The interaction protocol can specify the order of messages in a dialog.

Source: Industrie 4.0 – Begriffe/Terms, VDI Statusreport Industrie 4.0 (April 2021)

Defined connection point of a functional unit which can be connected to other functional units.

Note 1: “Defined” means that the requirements and the assured properties of this connection point are described.

Note 2: The connection between the interfaces of function units is also called an interface.

Note 3: In an information system, the defined exchange of information takes place at this point.

Note 4: Interface places certain requirements on the connection that is to be made.

Note 5: Interface demands certain features.

Source: Industrie 4.0 – Begriffe/Terms, VDI Statusreport Industrie 4.0 (April 2021)

Ability of different components, systems, technologies, or organizations to actively work together for a specific purpose.

Note: Interoperation is collaboration put into practice.

Source: Industrie 4.0 – Begriffe/Terms, VDI Statusreport Industrie 4.0 (April 2021)

Unit which exists objectively, is demarcated and identifiable.

Note 1: An item can be virtual or physical in nature.

Note 2: An item can be a device, subsystem, software program, plan, living organism, organization or the like.

Note 3: An item has a life cycle.

Source: Industrie 4.0 – Begriffe/Terms, VDI Statusreport Industrie 4.0 (April 2021)

L

Suggested structure for describing architectural aspects of I4.0 components and I4.0 systems.

Note 1: vertical axis of RAMI4.0.

Note 2: comparable/similar to IIRA viewpoints.

Source: Industrie 4.0 – Begriffe/Terms, VDI Statusreport Industrie 4.0 (April 2021)

Continuous number of processes which an item passes from creation to dissolution.

Source: Industrie 4.0 – Begriffe/Terms, VDI Statusreport Industrie 4.0 (April 2021)

M

Coherent, sufficiently detailed abstraction of aspects within a field of application.

Source: Industrie 4.0 – Begriffe/Terms, VDI Statusreport Industrie 4.0 (April 2021)

Coherent, sufficiently detailed abstraction of aspects within a field of application.

Source: Industrie 4.0 – Begriffe/Terms, VDI Statusreport Industrie 4.0 (April 2021)