Benoit Eynard

UML based specifications of PDM product structure and workflow

The paper deals with the use of a UML approach for the specifications of a PDM system (product data management) implementation. A PDM system enables the management of the whole product data and related information about its entire lifecycle. The main goal of this paper is to highlight the added value of using an object-oriented approach for modelling, specifying and implementing a PDM system on a business case study. The chosen object-oriented approach and the used UML diagrams for the modelling and integration of product, process, and resource data is detailed for a turboprop aircraft project.

Review on Application of Data Mining in Product Design and Manufacturing

Implementation of data mining technology in some areas such as banking, finance, marketing, insurance, health care, etc. has given very good results. However, applications of data mining in product design and manufacturing are not as broad as expected and many challenges are still ahead. This work analyzes the reasons for the limitation of data mining application in manufacturing industry and focuses on reviewing the state-of-the-art of the applications of data mining in product design and manufacturing. Some points of views are also discussed and finally this paper is concluded.

Compared implementations of PDM systems based on UML specifications

With regard to product development processes, the PDM (Product Data Management) system aims at the management of product data and related documents. The specification and implementation of such a system strongly depends on company needs and also on the system characteristics. Generally the PDM system requires a specific way of structuring product data and its management. In recent works, the use of the UML approach has been proposed to formalise the specifications in order to enable the implementation of a PDM system. The main goal of this paper is to study the implementation of such UML based specifications through two different PDM systems, in order to assess their functionalities according to the needs of product development process management. The case study used is extracted from a turboprop aircraft project.

Beyond geometric CAD system: implementation of STEP translator for multiple-views product modeller

A new kind of Computer-Aided Design (CAD) system is proposed to support the integration and collaboration in Concurrent Engineering (CE). The kernel of the system is the Co-operative Design Modeller (CoDeMo), which supports the multiple-views knowledge integration in the product definition. The enhancement of CoDeMo and CAx systems interoperability is required for achieving a consistent design support environment. This paper mainly deals with CoDeMo interoperability capabilities based on STEP AP203 Edition 2 standard. The aim is to show the benefit and efficiency of STEP-based application in the integration approach of CoDeMo and CAx systems. The architecture, development and application of the STEP pre-processor are described, respectively. A case study is given to illustrate the translation process of product data and to demonstrate the interest of the STEP translator.

Cooperative Decision Making for Diagnosis of Complex System based on Game Theory: Survey and an Alternative Scheme

Fault detection and diagnosis (FDD) is a decision problem. Game theory as part of economic theory was first articulated in 1944 and has since become an interdisciplinary approach to the study of human behavior, interaction, and decision-making. For the interest may be brought forth, by introducing game theory into FDD domain, we present a literature survey on this topic within the view of information fusion. After the general introduction on the topics of FDD, game theory and information. Fusion, we put forward the problem statement. Based on the analysing result of several game-theoretic approaches applied to FDD, we propose an alternative processing model and algorithm on game theory based diagnosis information fusion for complex system. At last the cooperative decision making for diagnosis of a machining center is taken as an instance to verify the feasibility of the alternative scheme.

Design Knowledge for Decision-Making Process in a DFX Product Design Approach

Product design is a knowledge-intensive process and involves large quantities of decisions. The efficiency and effectiveness of these decisions depend on the provision of many kinds of related knowledge to designers from different sources throughout the product lifecycle. First, this paper makes a literature review about the related works on product design knowledge and classifies the product design knowledge into three categories, namely product, process and product support knowledge. Secondly, the knowledge needs of product design decisions are analyzed. The decisions made during the design process have a critical impact both on the design solution obtained but also on the design process itself. These decisions are of many different types and made by different kinds of engineers and managers. This work illustrates decision-making in product design and some related works are reviewed. The decision-making during the product design process is analyzed and classified into two main categories, namely organizational and technical decisions, which are illustrated in a three dimensional figure. Finally, some conclusions and future works are discussed.

Manufacturing Quality Information Classification based on Group Technology and Quality BOM

Finding information from manufacturing quality information to support product design decisions is necessary for improving design quality. Based on the review of group technology and quality bill of material, the classification and coding of manufacturing quality information is proposed in which combines the manufacturing quality information families with part families. Then the application of classified and coded manufacturing quality information is illustrated for further use to support design decisions