What is OPC UA is a very simple question.
UA provides a very flexible and adaptable mechanism for moving data between Enterprise type systems and the kinds of controls, monitoring devices and sensors that interact with real world data..
It provides more open transports, better security and a more complete Information model than OPC which I will refer to as OPC Classic.
UA is a more secure, open, reliable mechanism for transferring Information between Servers and Clients.
OPC UA which I will refer to as UA throughout this book is the next generation of OPC technology.
The answer when you are discussing a complex Technology architecture like OPC UA isn\'t as simple.
What is OPC UA is a very simple question