- From: Ian Horrocks <ian.horrocks@comlab.ox.ac.uk>
- Date: Sun, 15 Mar 2009 19:01:56 +0000
- To: Peter F. Patel-Schneider <pfps@research.bell-labs.com>
- Cc: alanruttenberg@gmail.com, sandro@w3.org, public-owl-wg@w3.org
I would prefer to omit *any* qualification and simply say: "OWL 2 QL enables conjunctive queries to be answered using standard relational database technology; it is particularly suitable for applications where relatively lightweight ontologies are used to organize large numbers of individuals or where it is useful or necessary to access the data directly via relational queries (e.g., SQL)." Ian On 11 Mar 2009, at 17:00, Peter F. Patel-Schneider wrote: > From: Alan Ruttenberg <alanruttenberg@gmail.com> > Subject: Re: changes to document overview (done) > Date: Wed, 11 Mar 2009 12:11:17 -0400 > >> In this bit: >> >> "OWL 2 QL enables conjunctive queries to be answered using standard >> relational database technology; it is particularly suitable for >> applications where relatively lightweight ontologies are used with >> very large datasets, and where it is useful or necessary to access >> the >> data directly via relational queries (e.g., SQL)." >> >> my concerns would be that "very large datasets" could be >> misleading. I >> don't know that QL has been used with more than a few million rows >> and >> some people think of such as small. Also, I would put as coequal the >> large data sets and the need to use relational database. Therefore I >> would rephrase as: >> >> "OWL 2 QL enables conjunctive queries to be answered using standard >> relational database technology; it is particularly suitable for >> applications where relatively lightweight ontologies are used to >> organize relatively large numbers of individuals or where it is >> useful >> or necessary to access the data directly via relational queries >> (e.g., >> SQL)." >> >> -Alan > > Good change. > > peter >
Received on Sunday, 15 March 2009 19:02:35 UTC