Base music OWL ontology, author : Samer Abdallah, Yves Raimond Now event-focused instead of performance-focused The dublin core metadata set (owl DL) is loaded... This applied to each subclass of owl:Thing 1 Allows to map two time lines together Semi infinite time line... canonical coordinate system --> adressed through xsd:duration since the instant 0. time interval (see Allen theory) 1 Represents a linear and coherent piece of time -- can be either abstract (such as the one behind a score) or concrete (such as the universal time line). Two timelines can be mapped using timeline maps. 1 1 1 xsd:date xsd:dateTime this is the `universal' time line -- can adress time intervals on it using date/dateTime -- UTC 1 1 A time point, or a time interval -- an object which has a meaning when refering to a time line Mmmm - OntoClean issue here! 1 1 1 1 1 1 1 1 Use this property if we can adress time points on the time line using a data type, refered to by its uri (such as xsd:int or xsd:double...) -- we may want to define new xsd refers to a point on the time line A discrete timeline where points are adressed through a long int (sample number)