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A&EAlarms and Events

AMQPAdvanced Message Queuing Protocol

APIApplication Programming Interface

COMComponent Object Model

DAData Access

DCSDistributed Control System

DDSData Distribution Service

DXData Exchange

HDAHistorical Data Access

HMIHuman-Machine Interface

LDAPLightweight Directory Access Protocol

MESManufacturing Execution System

MQTTMessage Queue Telemetry Transport

OPCOPC Foundation (a non-profit industry association) formerly an acronym for “OLE for Process Control”. Acronym no longer used.

PLC Programmable Logic Controller

SCADASupervisory Control And Data Acquisition

SOAPSimple Object Access Protocol

UA Unified Architecture

UADPUA Datagram Protocol

UDDIUniversal Description, Discovery and Integration

UML Unified Modelling Language

WSDLWeb Services Definition Language

XMLExtensible Markup Language

XMPPExtensible Messaging and Presence Protocol