CTS2-LE UCUM Loader

The UCUM loader imports a terminology that comprises the most common units of measurement contemporarily used in international science, engineering and business.

The loader maps the knowledge contained in the source .tsv-file to the entities of the CTS2-information model. There are attributes that cannot be derived from the file and need to be defined manually. Among these attributes are:

• the uri of the code system (aboutUri): http://unitsofmeasure.org/trac
• the alternative uri of the code system (alternateAboutUri): http://unitsofmeasure.org/trac
• the name of the code system version (resourceID): UcumCodeSystem2013
• the group name: UCUM
• the default language: en
• the name of the graph that represents the code system: urn:cts2:graph#UcumCodeSystem2013

When UCUM is loaded together with the LOINC terminology, the unit of a LOINC concept is referenced in the UCUM code system by means of a 'rdfs:seeAlso' relation. The right picture shows the 'seeAlso' relation between the LOINC concept 'Oxygen saturation in Venous blood' and the UCUM unit 'Percent'.

Further instructions on how to enable the import of UCUM during the installation process can be found here.