In planning for a generalized "directory" component (see comment in ), it seems inevitable we will have to somehow infer data types other than strings in page metadata.
We already interpret mummy:order as integer, but only after the fact, dynamically, when reading it. In the future this can be changed by creating type rules for the mummy: ontology.
We need to decide on a more general facility for specifying a "publication date". The best approach seems to be to infer the type of properties with no particular namespace indicated (i.e. in the URF ad-hoc namespace), using the pattern xxxOn to indicate a local date (i.e. _YYYY-MM-DD_). Ontology-based type definition for other namespaces is being relegated to GUISE-132.