Hi Michelle Raymond, (01)
I will be serving on the NBIMS Models and Implementation Guidance
(MIG) Task Team and curious to hear your suggestions. The task team
charge is here
<www.facilityinformationcouncil.org/bim/pdfs/Models_TT_Charge.pdf>
Important focus includes exchange requirements and the certification
of software. (02)
Please explain more how you see an upper ontology helping to hold it
all together and what to look out for along the way. Many NBIMS
challenges have to do with spatial and measurement problems and
linking proprietary terms to standard language presented in NBIMS. My
assumption is the careful development and implementation of the
"standard language presented in NBIMS" is what will actually get the
whole system to work together. (03)
Currently, the IFDLibrary <http://www.ifd-library.org/> is a
terminology library system based on an ISO standard 12006-3 that has
the potential, in conjunction with OmniClass
<http://www.omniclass.org/> to establish a controlled vocabulary for
the building industry. However, the IFDLibrary is incomplete at this
time and OmniClass is only one of several classification systems
actively used. (04)
Thank you for your perspective, I'm sure it will help to clarify this
complex situation. (05)
Deborah MacPherson (06)
On Thu, Feb 14, 2008 at 5:06 PM, Michelle Raymond
<michellearaymond@xxxxxxxxx> wrote:
> Peter,
>
> Your comment in today's session about hoping the National Building Information
> Model has an Upper Ontology to keep things connected was a good one.
> The Buildings and Facilities Domain space is such that it has many
> sub-domains,
> super-domains and related-domains and thus screams for an Upper
> Ontology to keep it in check.
>
> Since a goal of the NBIMS is to provide a process for ontologies to be
> submitted by various non-core domains and be evaluated and accepted
> into the the BIM Standard, I have been niavely assuming that the
> existing meta-model and its continued development fit the requirements
> to be an Upper Ontology. My here-to limited exploration of the
> surrounding architecture gave me the hooks I needed to consider the
> Standard for a basis of information delivery to decision support
> services and my immediate information need was met. You sparked me to
> look further and after scanning the "Overview, Principles, and
> Methodologies" document, I am happy to report that I would consider
> the BIM founded in an Upper Ontology.
>
> I'd like to hear your opinion.
>
> The full "NATIONAL BUILDING INFORMATION MODELING STANDARD, Version 1 -
> Part 1: Overview, Principles, and Methodologies" document can be found
> at http://www.facilityinformationcouncil.org/bim/pdfs/NBIMSv1_p1.pdf
>
> Below is an extract from page 49, section 3 "Information Exchange Concepts"
> of the document noted.
>
> Best regards,
>
> Michelle Raymond
>
>
> "Commitments may be made to use a specific controlled vocabulary or
> ontology for a domain of interest. The NBIMS domain of interest
> ultimately encompasses all information views related to capital
> facilities. Enforcement of an ontology's grammar may be rigorous or
> lax. Frequently, the grammar for a light-weight ontology is not
> completely specified, that is, it has implicit rules that are not
> explicitly documented. It is important that NBIMS have a tight
> structure to the adopted ontology so as to minimize misinterpretation
> and to allow unambiguous understanding in software exchanges between
> the many domains and interests of the capital facilities industry.
> While vendors may use terms they created to help their marketing and
> branding, it is hoped that, in time, proprietary terms will be linked
> to the standard language presented in NBIMS.
>
> Currently there are no software applications which can support the
> entire scope of endeavors in the capital facilities industry. It is
> likely there never will be. As the uses of BIM expand, the NBIMS
> Committee, through the NBIM Standards, hopes to create a capability
> where each party can choose software best suited to its own
> requirements confident that they will be able to freely collaborate
> with others and efficiently exchange data.
>
> A meta-model is an explicit model of the constructs and rules needed
> to build specific models within a domain of interest. In the case of
> NBIMS the heart of the meta-model is in the Information Delivery Model
> (IDM). A valid meta-model is an ontology, but not all ontologies are
> modeled explicitly as meta-models. A meta-model can be viewed from
> three different perspectives,
> • as a set of building blocks and rules used to build models,as a set
> of building blocks and rules used to build models,
> • as a model of a domain of interest, andas a model of a domain of interest,
>and
> • as an instance of another model, and this where the model views come
> into play.
>
> When modelers use a modeling tool to construct models, they are making
> a commitment to use the ontology implemented in the modeling tool.
> This model making ontology is usually called a meta-model, with 'model
> making' as its domain of interest.
>
> One of the primary roles of NBIMS is to set the ontology and
> associated common language that will allow information to be machine
> readable between team members. Ultimately, these boundaries will
> encompass everyone who interacts with the built and natural
> environments. In order for this to occur, the team members who share
> information must be able to map to the same terminology. Common
> ontologies will allow this communication to occur." - 2007,
> "NATIONAL BUILDING INFORMATION MODELING STANDARD, Version 1 - Part 1:
> Overview, Principles, and Methodologies" pg 49.
>
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