Now that the DDI Lifecycle 4 RDF vocabulary is available, it would be interesting to see what types of queries can be created and answered from the rdf. For example:
What variables were collected from specific survey instruments
What variables are collected from a survey vs being derived
What surveys has a question been used in
What variables are comparable / share a conceptual variable
Now that the DDI Lifecycle 4 RDF vocabulary is available, it would be interesting to see what types of queries can be created and answered from the rdf. For example: