First International Conference on Practical Aspects of Knowledge Management October 30 - 31, 1996, Basel, Switzerland
Workshop on Product Knowledge Sharing for Integrated Enterprises ----------------------------------------------------------------
ORGANIZERS:
Harold Boley - German Research Center for Artificial Intelligence (DFKI GmbH), Kaiserslautern, Germany (boley@informatik.uni-kl.de)
Nicola Guarino - National Research Council, LADSEB-CNR, Padova, Italy (guarino@ladseb.pd.cnr.it)
With the sponsorship of European Union's PDTAG (Product Data Technology Advisory Group)
SHORT DESCRIPTION:
Product knowledge is scattered across paper files, computer media, and the heads of engineers. How can it be made explicit, accessed, shared, and integrated in order to minimize revision loops and translation costs between product generations?
We will compare strategies and techniques for integrating "legacy systems" -- databases, knowledge bases, and (hyper)texts -- into so-called *corporate memories*. Besides product-modeling standards like ISO 10303 (STEP) and ISO 13584 (parts libraries), emphasis will be put on common *ontologies*, facilitating communication and interoperability of database schemas, modelling methods, and software tools.
Our representative tasks:
(1) Techniques for integrating heterogeneous sources with varying conceptual schemas. (2) Formalization of reusable knowledge about product functions, geometry, or materials. (3) Links between product and process knowledge for fast response time to product-specification changes.
CALL FOR PAPERS:
The aim of this workshop is to present and compare practical approaches to product knowledge sharing and integration within and between organizations.
For any manufacturing enterprise, form and content of product knowledge are subject to change during the entire product life cycle. In its explicit form, product knowledge is scattered among various kinds of sources, including paper files and computer media; in its implicit form it belongs to the competence of specific experts, or to the shared experience of the whole company.
So-called *corporate memories* try to capture both kinds of knowledge, to make it more accessible and reusable. The goal is to minimize revision loops in the production cycle and to increase flexibility wrt the demands of the market. Real-world corporate memories may comprise databases, knowledge bases, (hyper)texts and other electronic documents.
Suitable techniques of knowledge sharing and integration play a crucial role here: knowledge has to be collected, stored and distributed for a variety of people to solve a variety of tasks. Most techniques rely on a common, rigorously defined, terminology or *ontology*: it describes, in a unified way, the meaning of the relevant pieces of information to facilitate communication between people and interoperability of different database schemas, modelling methods and software tools. Recent data modeling standards like ISO 10303 (STEP) for basic product knowledge and ISO 13584 for parts libraries represent concrete approaches in this direction.
The workshop is a natural development -- in a real-world setting -- of earlier initiatives on knowledge sharing and integration such as the two conferences on Building and Sharing Very Large Knowledge Bases KB&KS93-95, the ECAI-92 and IJCAI-93 workshops on Knowledge Sharing, the ARPA-94 workshop on Ontology Use and Development, the ECAI-94 workshop on Comparison of Implemented Ontologies, the IJCAI-95 workshop on Basic Ontological Issues in Knowledge Sharing, the ECAI-96 workshop on Ontological Engineering, as well as the informal workshop on Corporate Memories held at EURISCO in Fall 94.
In order to simplify in-depth analyses and comparisons, the focus of discussion will be limited to *product* knowledge, but the interactions between product and process knowledge will be of interest as well. Relevant areas are product data modelling, ontological engineering, data and knowledge integration.
In the spirit of this conference, three practical tasks related to the above issues have been isolated; high-quality papers are sought which relate their own approach -- methods or tools -- with one (or more) of these tasks.
Task 1: Integration of Product Legacy Knowledge.
Describe the methodology used to integrate in a single piece of "corporate memory" the knowledge already existing (in some machine-readable format) in the company *before* the integration process is initiated. Such knowledge should be related to a particular product or component of moderate complexity. Emphasis should be given to the techniques used to extract, recognize and compare the implicit modeling assumptions corresponding to knowledge distributed on such heterogeneous sources as databases with varying conceptual schemes, knowledge-based systems focused on particular tasks, natural language manuals and specifications, as well as CAD data. These modeling assumptions are usually reflected in the vocabulary used to denote concepts, relations, and attributes; of particular interest will be the use of ontologies and linguistic resources in order to perform a semantic unification of such terms.
Task 2: Representing Reusable Product Knowledge
Formalize, integrate, and maintain some key module(s) of shared corporate knowledge relevant for a product or its production. In particular, this may be reusable knowledge about product functions, geometry, or materials, or about production plans or balances. Justify the chosen representation language wrt expressive power, efficiency, and embeddability. Discuss multiple uses of the formalized knowledge, as for construction *and* recycling, materials selection *and* substitution, or (skeleton) plan reuse. Describe knowledge-maintainance operations for adapting to changes in the product or production environment. Show how this product knowledge can be integrated with other, less or differently formalized, parts of enterprise know-how, and discuss the role of product knowledge interchange standards like STEP in this perspective. Extract methodological guidelines to formalize larger portions of reusable product knowledge.
Task 3: Product-Process Mapping
Represent the specification of a product and the process of its production so as to facilitate the mapping of (customer changes in) the product specification to (appropriate changes in) the production process. Examples for demonstrating the product-process mapping may vary from workpieces, to motors, to vehicles, or to plants, as long as these can be represented intuitively. The mapping itself may vary from the association of production plans with product features to the checking of process constraints in product designs, to the generation of CNC programs from CAD geometries. An important practical challenge is the modularization of both product knowledge and product-process links in such a manner that routine changes in product modules only effect changes in corresponding process modules. Generally, the challenge is to maximize system support for the product-process mapping in order to obtain the added value of minimal adaptation time of production units to product changes.
PAPER SUBMISSIONS:
Submission format:
max 12 pages including bibliography, 12 pt font, text body of about 15 x 23 cm; both electronic and hardcopy submissions are accepted; email submissions must be either plain ASCII or postscript (*.ps) files; use only the main workshop address below.
Time schedule:
May 31: statement of submission intent: preliminary title, possibly abstract; one of the tasks described above should be clearly indicated.
June 24: submission deadline
July 15: notification of acceptance/rejection (via email only)
September 9: final full papers due (hardcopy ONLY).
WORKSHOP ADDRESSES:
Harold Boley (main workshop address) DFKI GmbH, Bau 57 Erwin-Schroedinger-Strasse D-67663 Kaiserslautern Germany email: sharint@dfki.uni-kl.de http://www.dfki.uni-kl.de/~vega/CoMem/CoMemEnglish.html phone: +49-631-205-3459
Nicola Guarino National Research Council, LADSEB-CNR Corso Stati Uniti, 4 I-35127 Padova Italy email: guarino@ladseb.pd.cnr.it http://www.ladseb.pd.cnr.it/infor/Ontology/ontology.html phone: +39-49-829-5751
PARTICIPATION:
Besides to people presenting a paper, the workshop is open to practitioners interested in concretly applying product knowledge technology. Workshop participants presenting a paper will, however, qualify for a reduced conference fee. Refer to the main conference's general information below for participation details.
DEMOS:
Software demos related to the workshop topics (but not necessarily to a particular paper) are encouraged. Conference organizers will provide a room where participants can give demos of their systems during lunch breaks or at other times. Lunch and exhibition / demos will be in the same or in adjacent rooms.
GENERAL INFORMATION:
Please refer to the main conference's address below (not to the workshop address) for all further issues concerning the conference in general (not the workshop in particular).
* Conference proceedings: The proceedings distributed at the conference will be informal. A published version may be produced later. It is also possible to have in that proceedings only short, more high-level versions of the workshop contributions while each workshop may produce a book with more detailed papers on its own.
* conference fees: workshop participants presenting a paper: 250 Fr. (including coffee breaks and lunch) Students: 200 Fr. (including coffee breaks but excluding lunch) Academia: 500 Fr. (including coffee breaks and lunch) Industry: 1750 Fr. (including coffee breaks and lunch) Conference dinner will require an extra fee.
* web page for the conference: http://expasy.hcuge.ch/sgaico/html/pakm.html
* main conference's address: Ulrich Reimer email: reimer@swssai.uu.ch Rentenanstalt / Swiss Life Informatik-Forschungsgruppe Tel.: +41-1-7114061 Postfach Fax: +41-1-7115007 CH-8022 Zuerich, Switzerland
-- Nicola
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Nicola Guarino National Research Council phone: +39 49 8295751 LADSEB-CNR fax: +39 49 8295778 Corso Stati Uniti, 4 email: guarino@ladseb.pd.cnr.it I-35127 Padova Italy
http://www.ladseb.pd.cnr.it/infor/Ontology/ontology.html (*** UPDATED 18 March, 1996 ***)