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Doctoral thesis:
Maintaining Semantics in the Integration
of Network
Interoperable Product Data Models
Doctoral thesis submitted as a partial fulfillment of
the
requirements for a degree of 'Doutor em Engenharia de
Produção'
at the Universidade Federal de Santa Catarina, Brasil. Author:
Vinícius
Medina Kern. Advisor: Ricardo Miranda Barcia, Ph. D. Co-advisor
(Virginia
Tech): Jan Helge Bøhn, Ph. D.
This thesis was written in both English and
Portuguese.
The author strongly recommends the reading of the English version.
Please
see details in the Foreword.
Foreword
The doctoral research reported in this thesis was part of the
"sandwich"
program of the Brazilian National Research Council (CNPq), with the
credits
taken at the Federal University of Santa Catarina, Graduate Program in
Production Engineering (UFSC/PPGEP, Brazil). From August, 1994, to
November,
1995, the research was conducted at the Virginia Polytechnic Institute
and State University (Virginia Tech, USA). From November, 1995, to
October,
1996, the research was conducted at the National Institute of Standards
and Technology (NIST, USA). At UFSC/PPGEP, the thesis project was
approved
in a qualifying examination in June, 1996, and the thesis was defended
in December, 1997.
During the literature review, one term paper (Kern 1994), and three
congress papers (Kern & Bøhn 1995) (Kern, Bøhn, &
Barcia 1996) (Kern, Barra, & Barcia 1996) were published. The
language
in which the papers and the thesis were written is English. In order to
comply with UFSC policies, the thesis was published in Portuguese with
the title "Manutenibilidade da Semântica de Modelos de Dados de
Produtos
Compartilhados em Rede Interoperável", and the English version
was
included in the appendix.
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Abstract
Data in engineering applications has been managed using database
management
systems or dedicated mechanisms embedded in CAx systems. Current
industrial
competitiveness trends point to the necessity of integrating
engineering
applications. Two major demands arise: the use of a mechanism to
provide
for network interoperable access to data, and the necessity of handling
data models supported by different paradigms. This doctoral thesis
introduces
the problems of product data exchange and interoperability among
applications
using standard formats, and discusses the problem of semantic loss in
the
translation of product data models for network interoperable access. An
analysis of the problems that emerge in this translation, with the
objective
of assessing the maintainability of data semantics across a distributed
network, is performed.
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Keywords
-
Product data exchange
-
Data sharing
-
STEP (STandard for the Exchange of Product model data)
-
PDES (Product Data Exchange using STEP)
-
EXPRESS
-
SDAI (Standard Data Access Interface)
-
CORBA (Common Object Request Broker Architecture)
-
IDL (Interface Definition Language)
-
Interoperability
-
Engineering Databases
-
Virtual Enterprises
-
Industrial Virtual Enterprises (IVE)
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Copyright ©
Vinícius
Medina Kern