Semantic Mapping Between IAI ifcXML and FIATECH AEX Models for Centrifugal Pumps.
Semantic Mapping Between IAI ifcXML and FIATECH AEX
Models for Centrifugal Pumps.
Begley, E. F.; Palmer, M. E.; Reed, K. A.
NISTIR 7223; 65 p. May 2005.
centrifugal pumps; mapping; information technology
This report describes a semantic mapping between two
extensible markup language (XML)1 specifications
describing a single type of equipment that is used in
heating, ventilation, air conditioning, refrigeration
(HVAC/R) and other types of systems: the centrifugal
pump. The first XML specification is called ifcXML and
represents the information content of the Industry
Foundation Classes (IFC) as defined by the International
Alliance for Interoperability (IAI)2. The second XML
specification, AEX, is the product of a Fully Integrated
and Automated Technology (FIATECH)3 project to define a
language for Automating Equipment Information Exchange.
The differences between these XML specifications for
centrifugal pump information arise from the contrasting
viewpoints DS design, procurement and maintenance of
engineered equipment vs. whole building project DS of the
FIATECH AEX and IAI IFC efforts. The semantic mapping
between these specifcations offers potential benefits to
the AEC/FM community as the basis for harmonization of
the XML structures of the respective XML schemas as well
as the identification and specification of a methodology
for harmonizing schemas representing other types of
equipment, system information, facility information, and
project information. In the near term, the results can
be used to establish exchange mechanisms between
information systems that utilize the different XML
applications in order to test cross-system exchange
scenarios. The rest of this introduction provides
overviews of XML, IAI, IFC and ifcXML, FIATECH, AEX,
uses cases for the IFC and AEX, and centrifugal pumps
that should prove useful for understanding the semantic
mapping presented later in this report.