| Resource | Count | SKOS mapping |
| "A desktop event: activity performed by an user. A "hook" class that should be extended by other ontologies such as desktop service ontology to specify which application or service was involved in the desktop event." | 1 |
| "An event of primary or intended use of the resource by the user. Primary or intended use is defined as the use by the consumer of the resource, such as watching a movie or listening to a song. Not to be confused with a low-level read on a file." | 1 |
| "An event that lead to changes of the resource that are meaningful to the user" | 1 |
| "An event which refers to the timespan in which a resource was in the focus of the user." | 1 |
| "An event: activity that have a specific start datetime and possibly a duration" | 1 |
| "Duration of the event. Deprecated in favor of nuao:end." | 1 |
| "Relates an event to the agent initiating the event." | 1 |
| "Relates an event to the resource that was targetted in the event." | 1 |
| "Relates an event to the resources that are involved in the event." | 1 |
| "The start time of the first event" | 1 |
| "The start time of the first modification" | 1 |
| "The start time of the first usage" | 1 |
| "The start time of the last event" | 1 |
| "The start time of the last modification" | 1 |
| "The start time of the last usage" | 1 |
| "The time of the start of the event" | 1 |
| "The time the event finished" | 1 |
| "The total amount of time a resource was in focus during a UsageEvent. This property should be used to 'compress' several FocusEvent instances into the essential information." | 1 |
| "The total duration of all events" | 1 |
| "The total duration of all modifications" | 1 |
| "The total duration of all usages" | 1 |
| "The total number of events" | 1 |
| "The total number of modifications" | 1 |
| "The total number of usages" | 1 |