Re: [cellml-discussion] UnitsML

2011-09-28 Thread Bernard de Bono
Hi, Is, alternatively, the use of an ontology for units also a consideration? Terms from such an ontology could be applied to the annotation of semantic metadata associated both with (i) model variables, as well as (ii) related datasets. Thoughts most welcome. All the best, Bernard On 28

Re: [cellml-discussion] UnitsML

2011-09-28 Thread Jonathan Cooper
Hi Bernard, I have thought about this a little. The biggest problem with using an ontology is that there doesn't seem to be any possibility of a mechanism for allowing user-defined units. The units ontology at present also doesn't appear to contain enough information to perform units

Re: [cellml-discussion] UnitsML

2011-09-28 Thread David Brooks
Hi Jonathan, Presumably you are referring to the Units Ontology and not ontologies in general? The Units Ontology appears to be mainly a controlled vocabulary with no formal definition of relationships between units (and IMHO, in need of some work, as e.g. microgram per kilogram per day is