[[TracNav(TracNav/ISO15926inOWL)]]

= ISO 15926-2 in OWL =

Author:

 * [mailto:martin.georg.skjaeveland@dnv.com Martin G. Skjæveland], DNV
 

This page lists and describes the different available OWL representations of various parts of ISO 15926-2.

[[PageOutline(2-4,Contents,inline)]]

----

== ISO 15926-2:2003 entity types ==

The file http://rds.posccaesar.org/2008/02/OWL/ISO-15926-2_2003 contains all the entity types defined in ISO 15926-2:2003 represented as `owl:class`es. The file is generated by translating the EXPRESS file `lifecycle_integration_schema.exp` downloaded from [http://www.steptools.com/sc4/archive/oil-and-gas/15926-0002-lifecycle_integration.exp?rev=1.1&content-type=text/vnd.viewcvs-markup http://www.tc184-sc4.org/EXPRESS/] which ISO 15926-2 (2003) annex B references, to an XML serialization of OWL. A more thorough description of the translation is found in the article [wiki:ISO15926inOWLtranslateEXPRESStoOWL].

This ontology is represented in the OWL sublanguage ''OWL DL'' and has the [http://en.wikipedia.org/wiki/Description_logic#DL_Expressivity DL expressivity] [[LatexEquation(\mathcal{SHN(D)})]], this is partly because the ontology imports the [wiki:ISO15926inOWLPart2#ISO15926-2:2003OWLlist OWL linked list] representation.

== ISO 15926-2:2003 definitions, examples and notes ==

The file http://rds.posccaesar.org/2008/07/OWL/ISO-15926-2_2003_annotations contains definitions, examples and notes of the ISO 15926-2:2003 entity types. The file is generated by transforming a version of the EXPRESS file [http://www.tc184-sc4.org/EXPRESS/ lifecycle_integration_schema.exp] containing this information in comments. This EXPRESS file is not "ISO official", so there is no guarantee of the correctness of the content. There is a [http://www.tc184-sc4.org/wg3ndocs/wg3n1328/lifecycle_integration_schema.html ISO published online version of ISO 15926-2:2003], please report back if you find errors in our OWL representations.

This ontology is represented in the OWL sublanguage ''OWL DL'' and has the [http://en.wikipedia.org/wiki/Description_logic#DL_Expressivity DL expressivity] [[LatexEquation(\mathcal{SHN(D)})]]. This complexity is completely due to the complexity of [wiki:ISO15926inOWLPart2#ISO15926-2:2003entitytypes 2008/02/OWL/ISO-15926-2_2003] which this file imports. All definitions, examples and notes are represented using `owl:AnnotationProperty` which have no effect on the DL expressiveness of an OWL ontology.

== ISO 15926-2:2003 membership relationships ==

The file http://rds.posccaesar.org/2008/07/OWL/ISO-15926-2_2003_entityMembership contains membership relationships between the entity types of ISO 15926-2:2003. These relationships are expressed after an interpretation of the text definitions of the entity types of ISO 15926-2:2003; a discussion on this work is found on the wiki page [wiki:ISO15926inOWLPart2EntityMembership Adding membership relationships to ISO 15926-2 in OWL]. 

The file http://rds.posccaesar.org/2008/07/OWL/ISO-15926-2_2003_entityMembershipCandidates contains candidate membership relationships. See the above mentioned wiki page for more information.


== OWL list ==

The file http://rds.posccaesar.org/2008/02/OWL/list contains an OWL representation of the data structure linked list as described in the article [http://owl-workshop.man.ac.uk/acceptedLong/submission_12.pdf "Putting OWL in Order: Patterns for Sequences in OWL"], Drummond et al., OWL-ED 2006.

This ontology is represented in the OWL sublanguage ''OWL DL'' and has the [http://en.wikipedia.org/wiki/Description_logic#DL_Expressivity DL expressivity] [[LatexEquation(\mathcal{SHN})]].

== Dependence diagram ==

The following diagram displays the dependencies and relationships between the ontologies listed on this page.

{{{
#!graphviz.dot
digraph G { overlap=false;  
node [fontname=Arial, shape=box];
edge  [fontname=Arial, fontsize=8];

"ISO-15926-2_2003_entityMembershipCandidates\n(2008/07)" [URL="http://rds.posccaesar.org/2008/07/OWL/ISO-15926-2_2003_entityMembershipCandidates"];

"ISO-15926-2_2003_entityMembership\n(2008/07)" 
[URL="http://rds.posccaesar.org/2008/07/OWL/ISO-15926-2_2003_entityMembership"];

"ISO-15926-2_2003\n(2008/02)" 
[URL="http://rds.posccaesar.org/2008/02/OWL/ISO-15926-2_2003"];

"list\n(2008/02)"
[URL="http://rds.posccaesar.org/2008/02/OWL/list"];

"ISO-15926-2_2003_annotations\n(2008/07)" 
[URL="http://rds.posccaesar.org/2008/07/OWL/ISO-15926-2_2003_annotations"];


"ISO-15926-2_2003\n(2008/02)" -> "list\n(2008/02)" [label="imports"];
"ISO-15926-2_2003_annotations\n(2008/07)" -> "ISO-15926-2_2003\n(2008/02)" [label="imports"];
"ISO-15926-2_2003_entityMembershipCandidates\n(2008/07)" -> "ISO-15926-2_2003_entityMembership\n(2008/07)" [label="imports"];
"ISO-15926-2_2003_entityMembership\n(2008/07)" -> "ISO-15926-2_2003\n(2008/02)" [label="imports"];
}