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RIF: Classification of Use Cases

From: Francois Bry <bry@ifi.lmu.de>
Date: Thu, 22 Dec 2005 16:04:21 +0100
Message-ID: <43AAC075.8020604@ifi.lmu.de>
To: public-rif-wg@w3.org
Cc: Francois Bry <bry@ifi.lmu.de>, Paula Patranjan <paula.patranjan@pms.ifi.lmu.de>

Dear Friends,

During the last telecon of the W3C RIF WG, the question has been
discussed, but as far as we could hear/understand not resolved, how to
classify the use cases submitted so far.

In our opinion, a good classification is important because otherwise
there is a risk that only a few use cases remain considered by the WG.
This, in our opinion, is undesirable: A rich set of different and
complementary use cases is essential for demonstrating the
importance/relevance of a Rule Interchange Format.

May we suggest a classification scheme along the following complementary
criteria (or axes)? Note that the values proposed below for a criteria
are not necessarily exclusive, ie several values of a same criteria
might apply to a same use case.

1. application field: standard web, semantic web, web services, trust
negociation, business process modeling, contextualization/personalization,

2. type of rules:
normative rules (or structural rules, or integrity constraints),
deductive rules (or deduction rules or database views or constructive
active (or reactive rules).

(These three kinds of rules are explained eg at:

3. data accessed (ie data "queried" in rule bodies): XML/HTML, RDF,
Topic Maps, OWL.

4. data generated (ie data "constructed" in rule heads): XML/HTML, RDF,
Topic Maps, OWL.

5. relationship to query language(s): query language(s) that can be
used for accessing data (ie query languages that can be called in rule

Possibly, the classification scheme given above can be refined or extended.

We volonteer to classify the use cases if this is considered usefull (and
if we are given enough time, say up till thre end of January).

We wish you all a merry Xmas and happy new year!


Francois (Bry) and Paula (Patranjan)
Received on Thursday, 22 December 2005 15:04:39 UTC

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