support for "non-existing" properties

[EnnoMeijers]

The 'choose property' allows to enter "non-existing" properties like 'http://schema.org/work1' is that a bug or a feature?

[wouterbeek]

IMO it would be a good usability improvement if non-existing IRIs cannot be defined within existing namespace (as in your example). It is easy to accidentally hit a key and use the wrong property/class as a result.

[wouterbeek]

This may be implemented with an LDF query: if there are no results for {s} ?p ?o on the dataset that is used by the LD Wizard, then {s} does not exist. But this check must only be performed under some conditions: e.g., when {s} shares a predefined IRI prefix.