Terms, Definitions and Abbreviations Terms and Definitions Please note: the definitions of terms are only valid in a certain context. This glossary applies only within the context of this document. If available, definitions were taken from IEC 63278-1:2023. API specification of the set of operations and events that forms an API in a selected technology API Operation specification of the operations (procedures) that may be called through an API Asset Administration Shell (AAS) standardized digital representation of an asset Note: Asset Administration Shell and Administration Shell are used synonymously. [SOURCE: IEC 63278-1:2023, note added] interface shared boundary between two entities defined by functional characteristics, signal characteristics, or other characteristics as appropriate interface operation interface operations define interaction patterns via the specified interface operation executable realization of a function Note 1: the term method is synonymous to operation. Note 2: an operation has a name and a list of parameters [ISO 19119:2005, 4.1.3]. [SOURCE: Glossary Industrie 4.0, editorial changes] service distinct part of the functionality that is provided by an entity through interfaces [SOURCE: IEC 63278-1:2023; IEC 60050-741:2020, 741-01-28] service specification specification of a service according to the notation, architectural style and constraints of a selected technology Note: one or multiple API Operations can be assigned to one service specification. Submodel representation of an aspect of an asset [SOURCE: IEC 63278-1:2023] SubmodelElement element of a Submodel [SOURCE: IEC 63278-1:2023] Abbreviations Abbreviation Description AAS Asset Administration Shell AASX Package file format for the AAS AML AutomationML, Automation Markup Language API Application Programming Interface BITKOM Bundesverband Informationswirtschaft, Telekommunikation und neue Medien e. V. BLOB Binary Large Object CDD Common Data Dictionary GUID Globally unique identifier ID Identifier IDTA Industrial Digital Twin Association IEC International Electrotechnical Commission IRDI International Registration Data Identifier ISO International Organization for Standardization JSON JavaScript Object Notation MIME Multipurpose Internet Mail Extensions OPC Open Packaging Conventions (ECMA-376, ISO/IEC 29500-2) OPCF OPC Foundation OPC UA OPC Unified Architecture maintained by the OPC Foundation PDF Portable Document Format RAMI4.0 Reference Architecture Model Industrie 4.0 RDF Resource Description Framework REST Representational State Transfer RFC Request for Comment ROA Resource Oriented Architecture SOA Service Oriented Architecture UML Unified Modeling Language URI Uniform Resource Identifier URL Uniform Resource Locator URN Uniform Resource Name UUID Universally Unique Identifier VDE Verband der Elektrotechnik Elektronik Informationstechnik e. V. VDI Verein Deutscher Ingenieure e.V. VDMA Verband Deutscher Maschinen- und Anlagenbau e.V. W3C World Wide Web Consortium XML eXtensible Markup Language ZIP archive file format that supports lossless data compression ZVEI Zentralverband Elektrotechnik- und Elektronikindustrie e. V.