Issue 415: Missing inverse of P189

Starting Date: 
Working Group: 
Closing Date: 

Posted by Robert Sanderson on 5/4/2019

Dear all,

In the 6.2.4 PDF, there isn’t a definition of the inverse property of P189 approximates.  One would imagine P189i is approximated by.

Given that the relationship has a direction (A approximates B), and in Geo this would be between Declarative and Phenomenal Places, this seems like an oversight? Or am I missing something about the relationship that means an inverse is not necessary?

Current Proposal: 

Posted by martin on 5/4/2019

Dear All,

It's an oversight indeed!

PLEASE VOTE YES, if you agree with P189 approximates (is approximated by).

Posted by Thanasis Velios on 5/4/2019

Yes, sounds reasonable to me.

Posted by Robert Sanderson on 5/4/2019

In case it wasn’t obvious, a definite YES from me 

Posted by Øyvind    on 6/4/2019

Yes; good you spotted it!



Posted by  Christos Papatheodorou  on 6/4/2019


Posted by Steve Stead on 6/4/2019

A “Yes” from me.

Posted by Christian-Emil on 6/4/2019


Posted by George on 6/4/2019


Posted by Mélanie on 23/4/2019

Yes, thank you Robert for spotting it.


In the 44th joint meeting of the CIDOC CRM SIG and ISO/TC46/SC4/WG9; 37th FRBR - CIDOC CRM Harmonization meeting, the sig corroborated the result of the e-vote on the proposal by MD to edit the label of P189 approximates, to include the inverse property (is approximated by). The proposed change was unanimously accepted (8 sig members voted). The issue is closed. P189 changed .

Paris, June 2019