[Crm-sig] NEW ISSUE 380 continued: revision of P81, P82 (ISSUE 380 continued)

Martin Doerr martin at ics.forth.gr
Tue Mar 24 19:14:43 EET 2020


Dear All,

Here my revision of P81, P82. I have added the phrases in bold, and 
added examples. This should go into version 7.0.
I have kept the quantification many to one, because keeping 
simultaneously multiple estimates is aquestion of provenance. If the 
maintainers of the KB believe all estimates are correct, they should 
replace them by the estimate as described in bold, and document the 
arguments for the individual periods. On the other side, if they decide 
to keep different time-spans for the same period per estimate, the query 
mechanism should compute and evaluate based on the resulting estimate as 
described in bold.

Please comment.

Best,

Martin

---------------------------------------------------------------------------------------------------------------------------

"P81 ongoing throughout" (at least)

και "P82 at some time within"(at most) :

P81 ongoing throughout
Domain: E52 <#_E52_Time-Span> Time-Span
Range: E61 <#_E61_Time_Primitive> Time Primitive
Quantification:    many to one, necessary (1,1:0,n)

Scope note:         This property associates an instance of E52 
Time-Span with an instance of E61 Time Primitive specifying a minimum 
period of time covered by it. Since Time-Spans may not have precisely 
known temporal extents, the CIDOC CRM supports statements about the 
minimum and maximum temporal extents of Time-Spans. This property 
allows  a Time-Span’s minimum temporal extent (i.e. its inner boundary) 
to be assigned an E61 Time Primitive value. Time Primitives are treated 
by the CIDOC CRM as application or system specific date intervals, and 
are not further analysed. *If different sources of evidence justify 
different minimum extents without contradicting each other, the smallest 
interval including these extents will be the best estimate.**This should 
be taken into account for information integration.
*
Examples:       *   The time-span of the development of the CIDOC 
CRM(E52) /ongoing throughout/ 1996-2019(E61) (observed until time of 
documentation 1.1.2020)
                          *   The time-span of the construction of the 
imperial palace in Beijing under Emperor Yong Le(E52) /ongoing 
throughout/ 1407-1419 (E61)


P82 at some time within
Domain: E52 <#_E52_Time-Span> Time-Span
Range: E61 <#_E61_Time_Primitive> Time Primitive
Quantification:    many to one, necessary (1,1:0,n)

Scope note:         This property describes the maximum period of time 
within which an E52 Time-Span falls. Since Time-Spans may not have 
precisely known temporal extents, the CIDOC CRM supports statements 
about the minimum and maximum temporal extents of Time-Spans. This 
property allows  a Time-Span’s maximum temporal extent (i.e. its outer 
boundary) to be assigned an E61 Time Primitive value. Time Primitives 
are treated by the CIDOC CRM as application or system specific date 
intervals, and are not further analysed. *If different sources of 
evidence justify different maximum extents ***without contradicting each 
other*, the resulting intersection of these extents will be the best 
estimate. **This should be taken into account for information integration.
*

Examples:  * The time-span of the development of the CIDOC CRM (E52) /at 
some time within/ 1992-infinity (E61)
                     * The time-span of the Battle of the Teutoburg 
Forest (E52) /at some time within 9AD (E61)/
/                    * /The time-span of the construction of the 
imperial palace in Beijing under Emperor Yong Le (E52) /at some time 
within/ 1406-1420(E61)
------------------------------------------------------------------------------------------------------------------------------------------------ 


-- 
------------------------------------
  Dr. Martin Doerr
               
  Honorary Head of the
  Center for Cultural Informatics
  
  Information Systems Laboratory
  Institute of Computer Science
  Foundation for Research and Technology - Hellas (FORTH)
                   
  N.Plastira 100, Vassilika Vouton,
  GR70013 Heraklion,Crete,Greece
  
  Vox:+30(2810)391625
  Email: martin at ics.forth.gr
  Web-site: http://www.ics.forth.gr/isl

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