Re: [IEEE P-1788] Voting begins: Motion P1788/M0013.02:ComparisonOperations : NO

[Dominique Lohez <dominique.lohez@xxxxxxx>]

My vote is NO

Rationales

1) The comparison operations SHOULD be defined at defined at level 1 and 
then developed at  level   2 and further
    Such an approach would be consistent with the the methodology alway 
used in the working group up to now

2) The primitive operations  provided by the  standard MUST be  be 
defined such that for any pair of intervals  one and only one operation 
provided the true result.
    This is not the  case for the  primitive  operations proposed in   
the motion 13
     I think that the relative position of intervals sharing a common 
bound should be carefully distinguished, since these operations will 
reveal of crucial for the discussion of reverse operators.

     A good starting point could be the work  of ALLEN for bounded 
intervals quoted by  Vladik       Kreinovich  in a previous mail 

http://en.wikipedia.org/wiki/Allen's_Interval_Algebra



      However further work is needed to be able to handled both bounded 
and unbounded intervals

3) For the shake of convenience further very often used relations MAY be 
defined


Sincerely,

Dominique LOHEZ

--
Dr Dominique LOHEZ
ISEN
41, Bd Vauban
F59046 LILLE
France

Phone : +33 (0)3 20 30 40 71
Email: Dominique.Lohez@xxxxxxx