Concrete domains

Additional datatype support

Support for the following datatypes has been added to Snow Owl:

• Boolean
• DateTime
• Decimal
• Integer
• String

Available datatypes

Classification performance

Snow Owl will provide integrated reasoners sufficient information to classify the above datatypes. We continue to recommend the ELK reasoner and include it as the default reasoner. To improve classification performance, we normalize datatypes before reasoning. We used the Australian Medicines Terminology (AMT) v3.0 previous release to test the classification performance on an ontology with large numbers of numerical datatypes. We found that the full classification and semantic differencing (i.e. identifying the ontological changes) process takes about a minute on a fast desktop computer (3.4 GHz i7).

Import

Snow Owl supports importing concrete domains as specified in the 'RF2 Specification Change Request - Addition of Concrete Domains' change request.