A perennial problem in the Construction, Infrastructure and Engineering Asset industries is managing the information about physical assets required for a multitude of processes. More recently, physical asset data is becoming part of Digital Twin projects. To support asset data exchange, many companies are now using RDF-based Object Type Libraries (OTL). An OTL is a library of classes and properties that describe the kinds of assets and their characteristics. In some disciplines, OTLs are called Reference Data Libraries or Engineering Class Libraries.

One large barrier to shared data across Digital Twins and other large engineering, infrastructure or construction projects is that it has often the case that each project defines its own OTL creating the need for new interfaces for each project when integrating with the company central asset database and other internal applications.