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This section describes some simple two level models built and implemented against, in various non-health domains, purely by way of example.
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This first example will walk through an idea of building a small mechanical engineering ontology that started life with reference to https://fastenerengineering.com/what-are-pins/ . This ontology then will be used in a GELLO query along with information model instance data.
The ontology was created using a traditional Concepts, Descriptions and Relationships table approach, which also borrowed column headers from SNOMED, to allow an easier import into a terminology server used to SNOMED. 97 concepts were assigned random alphanumeric identifiers and given hierarchical types:
