The E52 Scope Notes need to stress that times spans may not have precisely known temporal extents.
New scope note:
A determination of a range of dates or duration without any further connotations, to be used to confine periods, events, and any other phenomena valid for a certain time. A time appellation is a verbal form which refers to a time-span. The time-span itself is a temporal extent in the sense of Galilean physics. Different time-appellations may express the same time-span. The Time-Span represents the real extent of the entity it refers to, which is always fuzzy to a certain degree and only known in approximation. Respective properties of Time-Span allow to express approximations of a time-span according to our knowledge.
Example follows as before.
MD, 19/6/02
Scope note to be rewritten as follows:
A determination of a range of dates or duration without any further connotations, to be used to set limits to the temporal extent of periods, events and any other phenomena valid for a certain time. A time appellation is a verbal form which refers to a time-span. The time-span itself is a temporal extent in the sense of Galilean physics. Different time-appellations may express the same time-span. The Time-Span represents the real extent of the entity it refers to, which is always fuzzy to a certain degree and only known in approximation. Respective properties of Properties of time-span allow the expression of approximations of a time-span according to our knowledge.
Proposal accepted, Copenhagen 3/7/2002.