[sdw] Can OWL time describe time frequency? (#1133)

chat43 has just created a new issue for https://github.com/w3c/sdw:

== Can OWL time describe time frequency? ==
I am designing a smart home ontology, and I want to associate the service with certain time-frequency descriptions, such as "At 3:00 every Tuesday" or "At 5:00 on the last day of each month". Can OWL time describe these?

1. For "At 3:00 every Tuesday". As far as I know, OWL Time has a class GeneralDateTimeDescription. If we define an instance of GeneralDateTimeDescription, its property week of day has value Tuesday, property hour has the value 3, property minute has the value 0, and property second has the value 0. We don't give value to other properties (year, month) ...). Does this mean "At 3:00 every Tuesday"?

2, "At 5:00 on the last day of each month ." Since the last day of each month is different, we cannot describe it in the ontology using a specific date. So is there any way to express the concept of the last day of the month?

Please view or discuss this issue at https://github.com/w3c/sdw/issues/1133 using your GitHub account

Received on Thursday, 20 June 2019 10:49:10 UTC