$Id: experiences.n3,v 1.8 2002/01/08 22:17:04 mdean Exp $ DAML+OIL Experiences Summary http://lists.w3.org/Archives/Public/www-webont-wg/2001Dec/0178.html later intersect with FootnotedIssue http://lists.w3.org/Archives/Public/www-archive/2001Dec/0144.html http://lists.w3.org/Archives/Public/www-archive/2001Dec/0147.html Support for classical relational properties (transitivity, reflexivity, symmetry) is preferable to direct support for partOf, etc. In additional to TransitiveProperty, DAML+OIL should add SymmetricProperty and ReflexiveProperty. classical relational properties Statement ordering can be important, and is not adequately addressed in DAML+OIL. daml:collection parseType compliance datatypes http://lists.w3.org/Archives/Public/www-archive/2002Jan/0016.html (dis)agreements ontology documentation equivalence external constraints Many users prefer a frame orientation, which was largely lost in DAML+OIL. frame orientation daml:imports is insufficient and should be extended or removed. daml:imports http://lists.w3.org/Archives/Public/www-webont-wg/2001Dec/0105.html RDF(S) layering http://www.cs.man.ac.uk/~horrocks/OntoWeb/SIG/ophthalmology.pdf Some users desire an extensible meta-model. meta-model http://lists.w3.org/Archives/Public/www-archive/2001Dec/0142.html RDF and DAML+OIL provide insufficient support for labels across multiple natural languages. multilinguality (internationalization, signs) Direct support for n-ary relations is desirable. n-ary relations query language The ability to express the same thing in multiple ways can be problematic. redundancy There's strong interest in being able to make statements about (asserted) statements. reification roles rules simplification http://lists.w3.org/Archives/Public/www-archive/2001Dec/0143.html http://lists.w3.org/Archives/Public/www-archive/2002Jan/0008.html