Timbr fully complies with OWL DL (the computable closed world version of OWL). Timbr’s SQL re-write engine is an inference engine that automatically generates queries based on inference rules, including inheritance, transitivity clause and others. Defining inference in Timbr can be done through Timbr’s visual interface or via SQL statements. In addition, Timbr adds capabilities that can’t be found in OWL only in extensions such as SWRL or in Spin-Rules. In Timbr users simply add business logic using SQL. Timbr can also express aggregations as ontology concepts, which cannot be done in OWL.
