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Papers by SAMUEL DUARTE GOMES

Proceedings of the 12th International Conference on Enterprise Information Systems, 2010

We will present in this paper how to ensure a knowledge evaluation and evolution in a knowledge m... more We will present in this paper how to ensure a knowledge evaluation and evolution in a knowledge management system by using a Semantic Wiki approach. We describe a Semantic Wiki called WikiDesign which is a component of a Knowledge Management system. Currently WikiDesign is use in engineering department of companies to emphasize technical knowledge. In this paper, we will explain how WikiDesign ensures the reliability of the knowledge base thanks to a knowledge evaluation process. After explaining the interest of the use of semantic wikis in knowledge management approach we describe the architecture of WikiDesign with its semantic functionalities. At the end of the paper, we prove the effectiveness of WikiDesign with a knowledge evaluation example for an industrial project.

Journal of Biomedical Science and Engineering, 2012

In order to help companies to improve their competetiveness, it is important to develop new desig... more In order to help companies to improve their competetiveness, it is important to develop new design methodologies. In this framework, a Functional And Robust Design (FARD) methodology dedicated to routine design of "highly productive" modular product ranges is proposed including principles of functional analysis, Design For Assembly (DFA), and techniques of modelling and simulation for ergonomics consideration. This paper focuses on the application of this original method applied to mechanical vibration and ergonomics problems of a scraper. Including biomechanical aspect in the design methodology, it is possible to identify the impact of a vibration tool on its users using numerical models of the tool coupled to a finite element model of the human hand. This method can proactively warn very early, in the design process, the risks of causing musculoskeletal disorders and facilitate an optimization of the mechanical tool. This study is a first step in a context of human-centered design.

Robotics and Computer-Integrated Manufacturing, 2011

The paper describes a novel framework for an Assembly-Oriented Design (AOD) approach as a new fun... more The paper describes a novel framework for an Assembly-Oriented Design (AOD) approach as a new functional part of the Product Lifecycle Management (PLM) strategy, by considering product design and assembly sequence planning phases concurrently. Integration issues of product lifecycle into the product development process have received much attention over the last two decades, especially at the detailed design stage. The main objective of the research is to define assembly sequence into preliminary design stages by introducing and applying assembly process knowledge in order to provide an assembly context for the product development process, particularly for product structuring. The proposed framework highlights a novel algorithm based on a mathematical model integrating boundary conditions related to DFA rules, engineering decisions for assembly sequence and the product structure definition. This framework has been implemented in a new system called PEGASUS considered as an AOD module for a PLM system. A case study of applying the framework to a Catalytic-Converter and Diesel Particulate Filter subsystem , belonging to an exhaust system from an industrial automotive supplier, is introduced to illustrate the efficiency of the proposed AOD methodology.

Concepts, Methodologies, Tools, and Applications

International Journal of Product Development, 2009

Collaborative design methods and tools are increasingly integrated within automotive and aeronaut... more Collaborative design methods and tools are increasingly integrated within automotive and aeronautics industries in order to reduce costs and lead time, but also to improve product quality and value. Design tasks involve many actors and experts throughout the product lifecycle, which starts with product requirements / functional specification / product modelling / manufacturing and ends with its destruction or recycling. Software supporting collaborative design, such as PLM (Product Lifecycle Management) systems, is needed to help design team members in their project tasks. ACSP platform is a web-based PLM system. It supports the design team members in carrying out collaborative activities in product-process-design projects. An improvement of the ACSP platform has been proposed by introducing multi-agent systems at several levels of the ACSP architecture. This improvement is based on the RIO methodology and on many FIPA specifications. With implementation Multi-Agent Systems (MAS) for content and knowledge management in collaborative engineering, one can develop autonomy, reactivity, pro-activity and social ability in the Man-Machine relationships.

Since the last decade, considering the globalization process of the economy, the market evolution... more Since the last decade, considering the globalization process of the economy, the market evolution has tended to reduce product costs and to decrease time devoted to the product design and development. In this context, it is also important to consider the growing need for improving product performance and for integrating user specifications very early in the design process. In order to answer these needs, this paper proposes a specific design method based on Axiomatic Design methodology and a functional analysis in order to reduce the time dedicated to routine engineering. This method is directly integrated into our self-developed PLM system-Product Lifecycle Management-in order to work in a worldwide and collaborative design environment. The main objective of our methodology is to define the CAD model geometry according to the modifications and the customer needs. In order to manage such control, we can identify functional parameters and functional rules through the functional requirements and the input constraints. Moreover, we can extract the specific parameters and the specific rules from the older CAD models stored in the Product Data Management system or PDM from the previous and validated project. Our method explains how to obtain and link the different parameter types and rules through the definition of a theoretical Functional Knowledge which relates a 3D geometry entity to a customer need. This knowledge aims at giving an input to a knowledge management system. It also defines a specific architecture of the 3D CAD product based on the system components divided in functional entities. This specific architecture is used in order to perform and lay the foundation of a Knowledge-Based Engineering methodology or KBE. Moreover, this specific CAD architecture gives us a possibility to develop our data mining methods which are included into our KBE approach.

This paper focuses on industrial design and simulation processes especially in automotive and aer... more This paper focuses on industrial design and simulation processes especially in automotive and aerospace areas. Designers use business models (called expert models) such as CAD (Computed Aided Design) and CAE (Computed Aided Engineering) models to optimize and streamline the engineering process. Each expert model is driven by fine grained data (with knowledge encapsulated) such as parameters, expert rules, mathematic relations (parametric models, for example) which are shared by several users and in several different domains (mechanical, thermal, acoustic, fluid, etc) and exploited at the same time in a concurrent engineering context. It is the basis of an imperfect collaboration process due to the fact that existing tools do not manage encapsulated knowledge well and are unable to ensure that parameters and rules are consistent (same value of parameters for example) throughout different heterogeneous expert models. In this context, we propose an approach to manage knowledge using configurations synchronized with expert models which enable designers to use parameters consistently in a collaborative context. Our approach is called KCModel (Knowledge Configuration Model): it allows capitalization on, traceability, re-use and consistency of explicit knowledge used in configuration.

iiis.org

Out of 100 hours of engineering work, only 20 are dedicated to real engineering and 80 are spent ... more Out of 100 hours of engineering work, only 20 are dedicated to real engineering and 80 are spent on what is considered routine work. Readjusting the ratio of innovative vs. routine work is a major concern and the subject of research topics. Our research concerns systems and methodologies conceived to accelerate these routine processes. This article focuses on a methodology for capitalization of manufacturing knowledge (FabK) and its application towards the conception and verification of a new product. To validate our hypotheses, a series of experiments through a design process, with the aid of a Product Lifecycle Management (PLM) tool and a geometric modeler, have been implemented.

This paper presents a knowledge management experiment realized in an industrial company. Our rese... more This paper presents a knowledge management experiment realized in an industrial company. Our research concerns the development of a knowledge engineering module integrated in a collaborative eGroupware system. This platform is used by engineers to realise their projects in a collaborative way and in following a defined professional process. The first step of our approach is based on the modelling of the professional process used by professional actor. We have developed a formalism called RIOCK (Role Interaction Organisation Competence and Knowledge) to identify the emanating Knowledge resulting from the interaction between the roles played by professional actors. According to the obtained cartography of Knowledge, we have defined a typology of Knowledge and built an ontology to create a representation language in order to share and broadcast Knowledge. In other hand, the RIOCK models allow us to design a knowledge engineering module based on a multi-agent system. This system monitors the action of the professional actors inside the eGroupware and capitalizes, annotates, and broadcasts Knowledge in using the semantic web technologies and the ontology.

This paper presents a knowledge management experiment realized in an industrial company. Our rese... more This paper presents a knowledge management experiment realized in an industrial company. Our research concerns the development of a project memory to capitalize Information and Knowledge created, shared and reused in a product design project. The project memory is based upon a domain ontology called OntoDesign which enables to easily exploit it. This is implemented with the Semantic Web technologies in order to provide a framework for the annotation and the reuse of knowledge. This article describes the design rationale of OntoDesign.

International Journal on Interactive Design and Manufacturing (IJIDeM), 2010

Nowadays, companies have to cope with numerous constraints at organisational and technical levels... more Nowadays, companies have to cope with numerous constraints at organisational and technical levels in order to improve their competitiveness edges such as productivity, efficiency, and flexibility. Integrated product-process design becomes more and more complex to manage because of increasingly customized products related to various stakeholders and concerns geographically distributed. It is still represents a huge challenge, especially in the early phases of product development process. In such a context, the management of information within integrated product-process design highlights needs in a consistent engineering model

2007 Inaugural IEEE-IES Digital EcoSystems and Technologies Conference, 2007

This article presents a knowledge management experiment in a company of four hundred employees. O... more This article presents a knowledge management experiment in a company of four hundred employees. Our researches concerns the development of a MAS associated to e-Groupware in order to build project memories. In SMEs, the development of a product requires a multidisciplinary team where professional actors work together to achieve the same goal. In this collaborative world we observe many exchanges (engineering data, report...) and interactions (meetings, decisions...). Each of these types of communication is at the origin of the emergent knowledge. Consequently we propose an approach based upon the modelling of activities with an organizational meta-model and the use of MAS to trace knowledge and automatically build project memories.

Proceedings of the 12th International Conference on Enterprise Information Systems, 2010

We will present in this paper how to ensure a knowledge evaluation and evolution in a knowledge m... more We will present in this paper how to ensure a knowledge evaluation and evolution in a knowledge management system by using a Semantic Wiki approach. We describe a Semantic Wiki called WikiDesign which is a component of a Knowledge Management system. Currently WikiDesign is use in engineering department of companies to emphasize technical knowledge. In this paper, we will explain how WikiDesign ensures the reliability of the knowledge base thanks to a knowledge evaluation process. After explaining the interest of the use of semantic wikis in knowledge management approach we describe the architecture of WikiDesign with its semantic functionalities. At the end of the paper, we prove the effectiveness of WikiDesign with a knowledge evaluation example for an industrial project.

Journal of Biomedical Science and Engineering, 2012

In order to help companies to improve their competetiveness, it is important to develop new desig... more In order to help companies to improve their competetiveness, it is important to develop new design methodologies. In this framework, a Functional And Robust Design (FARD) methodology dedicated to routine design of "highly productive" modular product ranges is proposed including principles of functional analysis, Design For Assembly (DFA), and techniques of modelling and simulation for ergonomics consideration. This paper focuses on the application of this original method applied to mechanical vibration and ergonomics problems of a scraper. Including biomechanical aspect in the design methodology, it is possible to identify the impact of a vibration tool on its users using numerical models of the tool coupled to a finite element model of the human hand. This method can proactively warn very early, in the design process, the risks of causing musculoskeletal disorders and facilitate an optimization of the mechanical tool. This study is a first step in a context of human-centered design.

Robotics and Computer-Integrated Manufacturing, 2011

The paper describes a novel framework for an Assembly-Oriented Design (AOD) approach as a new fun... more The paper describes a novel framework for an Assembly-Oriented Design (AOD) approach as a new functional part of the Product Lifecycle Management (PLM) strategy, by considering product design and assembly sequence planning phases concurrently. Integration issues of product lifecycle into the product development process have received much attention over the last two decades, especially at the detailed design stage. The main objective of the research is to define assembly sequence into preliminary design stages by introducing and applying assembly process knowledge in order to provide an assembly context for the product development process, particularly for product structuring. The proposed framework highlights a novel algorithm based on a mathematical model integrating boundary conditions related to DFA rules, engineering decisions for assembly sequence and the product structure definition. This framework has been implemented in a new system called PEGASUS considered as an AOD module for a PLM system. A case study of applying the framework to a Catalytic-Converter and Diesel Particulate Filter subsystem , belonging to an exhaust system from an industrial automotive supplier, is introduced to illustrate the efficiency of the proposed AOD methodology.

Concepts, Methodologies, Tools, and Applications

International Journal of Product Development, 2009

Collaborative design methods and tools are increasingly integrated within automotive and aeronaut... more Collaborative design methods and tools are increasingly integrated within automotive and aeronautics industries in order to reduce costs and lead time, but also to improve product quality and value. Design tasks involve many actors and experts throughout the product lifecycle, which starts with product requirements / functional specification / product modelling / manufacturing and ends with its destruction or recycling. Software supporting collaborative design, such as PLM (Product Lifecycle Management) systems, is needed to help design team members in their project tasks. ACSP platform is a web-based PLM system. It supports the design team members in carrying out collaborative activities in product-process-design projects. An improvement of the ACSP platform has been proposed by introducing multi-agent systems at several levels of the ACSP architecture. This improvement is based on the RIO methodology and on many FIPA specifications. With implementation Multi-Agent Systems (MAS) for content and knowledge management in collaborative engineering, one can develop autonomy, reactivity, pro-activity and social ability in the Man-Machine relationships.

Since the last decade, considering the globalization process of the economy, the market evolution... more Since the last decade, considering the globalization process of the economy, the market evolution has tended to reduce product costs and to decrease time devoted to the product design and development. In this context, it is also important to consider the growing need for improving product performance and for integrating user specifications very early in the design process. In order to answer these needs, this paper proposes a specific design method based on Axiomatic Design methodology and a functional analysis in order to reduce the time dedicated to routine engineering. This method is directly integrated into our self-developed PLM system-Product Lifecycle Management-in order to work in a worldwide and collaborative design environment. The main objective of our methodology is to define the CAD model geometry according to the modifications and the customer needs. In order to manage such control, we can identify functional parameters and functional rules through the functional requirements and the input constraints. Moreover, we can extract the specific parameters and the specific rules from the older CAD models stored in the Product Data Management system or PDM from the previous and validated project. Our method explains how to obtain and link the different parameter types and rules through the definition of a theoretical Functional Knowledge which relates a 3D geometry entity to a customer need. This knowledge aims at giving an input to a knowledge management system. It also defines a specific architecture of the 3D CAD product based on the system components divided in functional entities. This specific architecture is used in order to perform and lay the foundation of a Knowledge-Based Engineering methodology or KBE. Moreover, this specific CAD architecture gives us a possibility to develop our data mining methods which are included into our KBE approach.

This paper focuses on industrial design and simulation processes especially in automotive and aer... more This paper focuses on industrial design and simulation processes especially in automotive and aerospace areas. Designers use business models (called expert models) such as CAD (Computed Aided Design) and CAE (Computed Aided Engineering) models to optimize and streamline the engineering process. Each expert model is driven by fine grained data (with knowledge encapsulated) such as parameters, expert rules, mathematic relations (parametric models, for example) which are shared by several users and in several different domains (mechanical, thermal, acoustic, fluid, etc) and exploited at the same time in a concurrent engineering context. It is the basis of an imperfect collaboration process due to the fact that existing tools do not manage encapsulated knowledge well and are unable to ensure that parameters and rules are consistent (same value of parameters for example) throughout different heterogeneous expert models. In this context, we propose an approach to manage knowledge using configurations synchronized with expert models which enable designers to use parameters consistently in a collaborative context. Our approach is called KCModel (Knowledge Configuration Model): it allows capitalization on, traceability, re-use and consistency of explicit knowledge used in configuration.

iiis.org

Out of 100 hours of engineering work, only 20 are dedicated to real engineering and 80 are spent ... more Out of 100 hours of engineering work, only 20 are dedicated to real engineering and 80 are spent on what is considered routine work. Readjusting the ratio of innovative vs. routine work is a major concern and the subject of research topics. Our research concerns systems and methodologies conceived to accelerate these routine processes. This article focuses on a methodology for capitalization of manufacturing knowledge (FabK) and its application towards the conception and verification of a new product. To validate our hypotheses, a series of experiments through a design process, with the aid of a Product Lifecycle Management (PLM) tool and a geometric modeler, have been implemented.

This paper presents a knowledge management experiment realized in an industrial company. Our rese... more This paper presents a knowledge management experiment realized in an industrial company. Our research concerns the development of a knowledge engineering module integrated in a collaborative eGroupware system. This platform is used by engineers to realise their projects in a collaborative way and in following a defined professional process. The first step of our approach is based on the modelling of the professional process used by professional actor. We have developed a formalism called RIOCK (Role Interaction Organisation Competence and Knowledge) to identify the emanating Knowledge resulting from the interaction between the roles played by professional actors. According to the obtained cartography of Knowledge, we have defined a typology of Knowledge and built an ontology to create a representation language in order to share and broadcast Knowledge. In other hand, the RIOCK models allow us to design a knowledge engineering module based on a multi-agent system. This system monitors the action of the professional actors inside the eGroupware and capitalizes, annotates, and broadcasts Knowledge in using the semantic web technologies and the ontology.

This paper presents a knowledge management experiment realized in an industrial company. Our rese... more This paper presents a knowledge management experiment realized in an industrial company. Our research concerns the development of a project memory to capitalize Information and Knowledge created, shared and reused in a product design project. The project memory is based upon a domain ontology called OntoDesign which enables to easily exploit it. This is implemented with the Semantic Web technologies in order to provide a framework for the annotation and the reuse of knowledge. This article describes the design rationale of OntoDesign.

International Journal on Interactive Design and Manufacturing (IJIDeM), 2010

Nowadays, companies have to cope with numerous constraints at organisational and technical levels... more Nowadays, companies have to cope with numerous constraints at organisational and technical levels in order to improve their competitiveness edges such as productivity, efficiency, and flexibility. Integrated product-process design becomes more and more complex to manage because of increasingly customized products related to various stakeholders and concerns geographically distributed. It is still represents a huge challenge, especially in the early phases of product development process. In such a context, the management of information within integrated product-process design highlights needs in a consistent engineering model

2007 Inaugural IEEE-IES Digital EcoSystems and Technologies Conference, 2007

This article presents a knowledge management experiment in a company of four hundred employees. O... more This article presents a knowledge management experiment in a company of four hundred employees. Our researches concerns the development of a MAS associated to e-Groupware in order to build project memories. In SMEs, the development of a product requires a multidisciplinary team where professional actors work together to achieve the same goal. In this collaborative world we observe many exchanges (engineering data, report...) and interactions (meetings, decisions...). Each of these types of communication is at the origin of the emergent knowledge. Consequently we propose an approach based upon the modelling of activities with an organizational meta-model and the use of MAS to trace knowledge and automatically build project memories.