An interval is a period of time elapsed between the start of an event and end of an event.The start of an event is precedes the end of an event. (Ref. J.F.Allen (1983), Maintaining knowledge about temporal intervals). |
•owl:Thing |
•PHILOSURFICAL-ENTITY |
•CRM-ENTITY |
•TIME-SPECIFICATION |
•TIME-INTERVAL |
TIME-SPECIFICATION |
HAS-UNIT-OF-MEASURE ONLY MEASUREMENT-UNIT |
HAS-END-TIME ONLY TIME-POINT |
HAS-START-TIME ONLY TIME-POINT |
Class(TIME-INTERVAL partial TIME-SPECIFICATION restriction(HAS-UNIT-OF-MEASURE allValuesFrom(MEASUREMENT-UNIT)) restriction(HAS-END-TIME allValuesFrom(TIME-POINT)) restriction(HAS-START-TIME allValuesFrom(TIME-POINT)))