Policy advice is a notoriously difficult task. Those who do the decision support analytics usually have like negative deadlines and there is never enough time to search for data, you just take what you have. INSPIRE Directive attempted to provide this data fast and fast does not mean only the download times but search-to-download times.
Since the European INSPIRE catalogue concentrates everything from the Member States, we used graph analysis to demonstrate problems analyst faces when searching for data. The very basic example of looking for an authoritative data source for addresses quickly changes into a nightmare, as the picture below demonstrates. 