Glossary

Abbreviations

Abbreviation	Meaning
API	Application Programming Interface
DTD	Digital Twin Data
DTXS	Digital Twin data eXchange Standard
JSON-LD	JSON for Linking Data ( https://json-ld.org)
OWL	Web Ontology Language
RDF	Resource Description Framework
SKOS	Simple Knowledge Organization System
SME	Small and Medium Enterprise

Term	Meaning	Synonyms
database	Storage space for storing records, documents or streams.	-
record	Atomic item stored in database, encapsulating information about structured data.	-
folder	Atomic item stored in database, encapsulating information about folder.	-
document	Atomic item stored in database, encapsulating information about documents (files).	file
stream	Atomic item stored in database, encapsulating information about streams (real-time data).	real-time data
server	A central point providing data storage and management features, as well as the API for connected clients.	platform
client	A technology endpoint connected to the central data management server, providing its data and computational power to the digital twin.	node, edge