Datasheet Datum
A class with identifier http://rds.posccaesar.org/ontology/plm/rdl/PCA_100029505
| Source ontology | Datasheet Ontology |
| natural language definition | A 'datasheet datum' is an entry on a 'datasheet' that is suitable for making an elementary assertion. |
| Comment | The use of "elementary" in the definition of 'datasheet datum' means that any part of a datasheet datum fails to express a full a assertion. Thus, if a datum reads "Linesize out 0.5 inch", neither of "Linesize out", "0.5", and "inch" expresses a statement on its own. |
| A datasheet datum will often be used to represent a semantic relationship in reified form. We use the term "proto-semantic" to informally describe the purpose of this kind of representation: a typical datasheet datum of interest contains information that motivates the introduction of semantic axioms. | |
| See also | |
| Example | A composite field with label "weight", a subfield for unit of measure, and a subfield for a numeric value for recording the mass of the datasheet subject; a field labelled "coating" with a subfield for recording the coating type of the datasheet subject; an unlabelled field that provides the title of the datasheet; a field labelled "operating conditions" to indicate the start of a topical datasheet section. |