EUROTL Framework overview

The figure below shows a principal view of the EUROTL framework.

The framework essentially consists of the following parts:

• European Road OTL Core Definitions
  This is an ontology that serves as a hub to which more specific domain ontologies may be linked. This ontology covers highly reusable definitions such as provenance, quantities and units, temporal and spatial locations, transport networks, basic support for asset lifecycle and also main asset types and properties as needed for sharing asset lifecycle data.
• Domain ontologies
  which are ontologies that already exist in some form and that covers specific needs for specific use cases. These ontologies are linked with the core definitions using Linking Rule Sets.
• Linking Rule Sets (LRS)
  which are ontologies or mapping descriptions with the only purpose to provide the relationships between elements in ontologies (e.g. between the domain ontologies and the European Road OTL Core Definitions) in a machine-readable way
• Modelling & linking guide (MLG)
  as provided by INTERLINK which contains recommendations for how to model the above ontologies to enable a smooth integration into the framework

EUROTL Core Definitions

This is the main ontology that serves as a hub for linking concepts (schema elements) and data between different domain ontologies. This ontology uses cmo and prov-o as upper ontologies to provide a basic and proven structure. Based on these, it defines a number of basic concepts relevant for road asset management from a lifecycle perspective such as:

• Provenance based on the w3c prov-o ontology
• The General AEC Reference Model (GARM)
• Distinction between physical and spatial objects
• Decomposition of objects (assembly/part)
• Connectivity between objects through ports and connections
• Location and shape
• Activities
• Baselines (lifecycle stages)
• Suitability
• Linked documents (also to non-Linked data)
• Quantities and units

EUROTL Framework Viewer	EUROTL Technical Report
The EUROTL framework viewer displays the entire EUROTL framework. This includes the Core, the domain ontologies, and their connection established by Linking Rule Sets.	The EUROTL technical report contains information solely based on the EUROTL Core. Separate technical reports are available per domain ontology and Linking Rule Set, which can be found further on on this page.

The whole framework is available for viewing in the Laces viewer here.

Framework ontologies