A reference kernel model for feature-based CAD systems supported by conditional attributed rewrite systems

Mandorli, Ferruccio; Otto, Harald E.; Kimura, Fumihiko

doi:10.1145/164360.164468

Cited by 10 publications

(11 citation statements)

References 27 publications

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“…A promising approach, introduced to represent knowledge about objects at a higher level of abstraction than geometry, is the feature-based methodology [8,15]. A feature is considered to be a data structure that represents the structure of a geometrical object, embodying both geometrical and non geometrical data, and defined in the specific context of the application [9].…”

Section: Heel Model Definitionmentioning

confidence: 99%

Developing applications for the Portuguese Shoe Industry

Gameiro¹,

Almeida²,

Freitas³

et al. 2004

Proceedings of the 3rd International Conference on Computer Graphics, Virtual Reality, Visualisation and Interaction in Africa

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In this paper a set of specific applications under development for the Portuguese Shoe Industry are presented. The applications include CAD/CAM, the visualisation of graphical information (related to shoe and shoe components models) and the management of production and prototyping information.Besides describing some of the R&D details of the applications developed by the authors, this paper aims to present a case study of a successful technological application. It is part of a more general process for the introduction, in this industrial sector, of new production, management and administrative working philosophies, which are based on the centralisation of information and integrated global solutions.

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Section: Heel Model Definitionmentioning

confidence: 99%

Developing applications for the Portuguese Shoe Industry

Gameiro¹,

Almeida²,

Freitas³

et al. 2004

Proceedings of the 3rd International Conference on Computer Graphics, Virtual Reality, Visualisation and Interaction in Africa

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“…Many research works on product model representation have been carried out in the past years, and a large bibliography is available about this topic (Shah 1994, Mandorli 1993). …”

Section: Knowledge Basementioning

confidence: 99%

Methodologies and Tools for Co-operative Interaction in the Design Process

Bottoni

Costabile

Mandorli

et al. 1998

Globalization of Manufacturing in the Digital Communications Era of the 21st Century

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Product and process technology are rapidly evolving, and competition is becoming more and more globally based. The increased competition has forced the market to move from mass production to customer-driven production: customers are placing an increasing emphasis on quality and reliability, but at the same time looking for good value. Providing environments which support the concurrent engineering paradigm and the co-operative interaction among the different actors involved in the design process can help manufacturers to reduce design cycle time and improve product value. The aim of our work is to investigate the use of currently available technology for co-operative interaction in the design process and suggest new solutions to improve the application of such a paradigm to the mechanical engineering field.

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“…Within our framework (Otto 1992, Mandorli 1993, Otto 1993a) we adopt a multi-layer model to represent design object descriptions. All conceptual layers consist of modeling domains made of sets of related typed attributed entities (cf.…”

Section: Definition and Validation Of Featuresmentioning

confidence: 99%

“…However, if the identifier scope of a certain modeling/reasoning space is within the scope of one administration I computation facility, as it is the case in most procedural programming languages and term rewriting systems, name clashes and extensionality problems can be solved by renaming and type/term inference. In the approach we have taken, we have no limitation at the implementation level of low level functionality due to our reference kernel architecture (Otto 1992, Mandorli 1993, Otto 1993a, as long as the basic structure of an attributed entity is maintained. Therefore above mentioned issues become a non-trivial problem within the context of geometric modeling based on Breps.…”

Section: Interfacing Features and Geometry Using An Entity Monitormentioning

confidence: 99%

“…In previous works we have introduced the CARW as a computational framework to represent feature-based design objects in terms of (typed) attributed symbols with respective domains. Further feature-based design (Otto 1992, Mandorli 1993, Otto 1993a, Otto 1994a and recognition (Mandorli 1991, Cugini 1992a operations in terms of conditional rewriting rules describe modification/evaluation of the design object model. To provide a reflective capability for our system, we extend the use of a CARW and introduce a meta CARW, which is able to perform actions over a CARW (cf.…”

Section: A Framework Based On a Carw Manager For Computationmentioning

confidence: 99%

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Reflective control of attributed entities in feature-based CAD systems using a CARW system manager

Mandorli

Cugini

Otto

et al. 1996

Knowledge Intensive CAD

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Requirements necessary to integrate intelligent computer aided design systems in future KAE/CAM systems aimed at supporting concurrent engineering and the handling of product data, propounding extensions and new developments of system architecture, data structures and functionality. Indispensable among these are an integrated and flexible formalization of the knowledge base and a modular system architecture which can be easily modified to suit current demands. Within our developed framework we propose a homogeneous representation of declarative, procedural, and control knowledge based on a conditional attributed rewriting system (CARW). Design, reasoning and computation are carried out in domains of typed attributed entities, which are replenished with reflective capabilities. Due to the rule-based approach, a high degree of flexibility and modularity can be achieved, while perpetuating the system's overall control in the form of a CARW manager. The objective of this study is to investigate how far our approach satisfies the requirements under consideration. Of major interest are-within the given scope-consistency aspects among attributed entities of different domains and the use of reflective techniques to support status evaluation of design features, their operators as well as design strategies.

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A reference kernel model for feature-based CAD systems supported by conditional attributed rewrite systems

Cited by 10 publications

References 27 publications

Developing applications for the Portuguese Shoe Industry

Developing applications for the Portuguese Shoe Industry

Methodologies and Tools for Co-operative Interaction in the Design Process

Reflective control of attributed entities in feature-based CAD systems using a CARW system manager

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