Glossary

Address Space
collection of information that an OPC UA Server makes visible to its Clients
Endpoint
physical address available on a network that allows Clients to access one or more Services provided by a Server
JSON
JavaScript Object Notationan is open-standard file format that uses human-readable text to transmit data objects consisting of attribute–value pairs and array data types
JSON API
Application Programming Interface, which uses JSON as a data format vie HTTP, WebSocket and other transport protocols
Node
fundamental component of an Address Space
OPC UA
machine to machine communication protocol for industrial automation developed by the OPC Foundation
Service
client-callable operation in an OPC UA Server
Variable
Node that contains a value
WebSocket
computer communications protocol, providing full-duplex communication channels over a single TCP connection.