= Modelling, Methods, and Technology SIG =

The focus of the MMT SIG is on the basics needed to establish and maintain correct and reliable reference data. For more, see the [http://www.posccaesar.com/en-GB/PortalObject/2622/POSCCaesar.aspx MMT SIG homepage].

== Ongoing activities ==

 * Coming soon: We will be publishing details about ''templates'' developed in the IDS project. Templates are n-ary predicates, for which definitions are stated in terms of rules (currently implemented in SWRL). This provides for a convenient and precise interface to the ontology, and is intended to be used by the various SIG's in their work on creating and maintaining ontologies for their respective subdomains.

In order to present of template definitions, support for entering diagrams of ISO 15926 models, using a simplified set of [http://www.tug.org/applications/Xy-pic/ xy-pic] commands, has been added to the Wiki. Here is an initial example:
{{{
#!LatexEquation
\TemplateDiagram{
  !c{car}{Car}{CO Individual} [r] !r{rel}{CO Assembly} [r] !c{wheel}{Wheel}{CO Individual}
  !s{rel}{car}{CO Whole}{wheel}{CO Part}
%  !d{rel}{car}{0:1}{wheel}{3:*}
   "rel" [ur(.5)] !c{card}{3:*}{Cardinality}
   "rel" - "card"|{\roletype{End 2 Cardinality}}
   "card" [u(.5)] !c{3}{3}{ExpressReal}
   "card" - "3"|{\roletype{Minimum Cardinality}}
  }
}}}



== Template Development ==

A document describing the current list of templates defined in the [wiki:IntelligentDataSetsPrototype IDS] project, with roles and brief definitions in natural language, can be found [http://trac.posccaesar.org/raw-attachment/wiki/IntelligentDataSetsPrototype/sc_template_defs.html here].

The following is a list of pages that describe individual templates, with definitions, diagrams, and so forth.

 * [wiki:TemplateDescriptionCIPcSQQ]

== Presentations ==

Presentations from [http://www.posccaesar.com/en-GB/PortalObject/2803/POSCCaesar.aspx Semantic Days 2008] are available in Powerpoint format. We intend to provide PDF formatted copies shortly.
 * A Tutorial on semantic technology, with special focus on templates for ISO 15926. [source:SIG/MMT/work/presentations/IDS-tutorial-Semantic-Days-2008.ppt Download slides]
 * A presentation of SIG MMT, describing this Trac and the need for template interfaces for creating reference data. [source:SIG/MMT/work/presentations/MMT-SIG-support.ppt Download slides]


== Links ==

 * [http://rds.posccaesar.com/2008/02/OWL/ISO-15926-2_2003 The 15926-2 standard in OWL] (non-authoritative). If you wish to open this, consider [http://protege.stanford.edu/download/download.html Protege] 3.4 beta (note: build 126 or later).

 * [http://www.steptools.com/sc4/archive/oil-and-gas/15926-0002-lifecycle_integration.exp?rev=1.1&content-type=text/vnd.viewcvs-markup The 15926-2 standard in EXPRESS] (authoritative), with [http://www.tc184-sc4.org/wg3ndocs/wg3n1328/lifecycle_integration_schema/lifecycle_integration_schema.html documentation in HTML] 

 * Under development, an [http://trac.posccaesar.com/svn/SIG/MMT/work/models/ISO_15926_RDL.htm overview of ISO 15926 reference data resources]  contains a series of resources (files and links) related to Models, Methods and Technology for ISO 15926. ''Please note that access to these resources currently requires logging in, that display requires Internet Explorer, and that some of the links are limited to internal DNV use for the time being''.

Contact: Johan W. Klüwer, johan.wilhelm.kluewer@dnv.com.