In large systems unique well-known names are often assigned to a piece of equipment, a measurement, or a control artifact. Such user-assigned names are often referred to as “Tag Names”. When a Node in a Server represents an entity with an assigned Tag Name, the Tag Name is often used as the Name or Description attribute for that Node, but short of browsing all Nodes in all Servers, there is no easy way to find a Node with a particular Name or Description. OPC 10000-17 defines a mechanism to assign a well-known name called an “alias name” to any Node in a Server and a centralized way to look up that Node by its alias name.