C-business et urbanisation d'entreprise

Les évolutions permanentes du marché ont forcé la plupart des entreprises à se focaliser sur les processus liés à leur coeur de métier. Ce recentrage les conduit alors soit à externaliser certaines parties de leurs processus, soit former temporairement une association avec d autres partenaires. Ces scénarios de collaboration imposent plusieurs contraintes sur la conception et l organisation du système d information à fin de le rendre facilement adaptable pour suivre les changements au niveau d organisation. Pour que le système d information soit facilement adaptable il est possible de restructurer le système d information en respectant les principes de l urbanisation du système d information couplé par une architecture orienté service, toute fois, cette organisation conduit à des systèmes assez rigides ne donnant pas réellement les capacités d initier des processus collaboratifs. Or, la collaboration impose de prendre en compte les contraintes de sécurité car l approche traditionnelle d urbanisation ne prend pas en considération la possibilité de collaboration et forme des îlots de sécurité ce qui s oppose à la nature transversale de la sécurité. En plus,dans un modèle orienté services, les applications distribuées sur plusieurs site ont peu ou pas de visibilité en matière de l information nécessaires pour assurer la sécurité au nouveau globale. C est dans ce contexte que nous avons proposé d adopter une démarche d urbanisation d entreprise qui promeut une organisation transversale du système de production de l entreprise qui permet une construction incrémentale des processus collaboratifs. Nous sommes parvenus à spécifier un modèle de service industriel construit par regroupement de toutes les fonctions nécessaires autour de la fabrication du produit. Ensuite, nous nous somme proposé de construire un middleware supportant ces services industriels. Cela induit d ajouter un niveau sémantique capable de gérer les propriétés fonctionnelles et non fonctionnelles (qualité de service et sécurité) aux bus de services traditionnels (ESB). Dans le cadre du projet ANR SEMEUSE visant à doter un ESB Open source (PETALS) d un niveau sémantique, notre contribution a plus particulièrement portée sur la spécification et la mise en oeuvre des composants permettant d intégrer de manière contextuelle les politiques de sécuritéMarket evolution has lead most of the enterprise to focus on their core business while setting outsourcing and collaborative strategies to be able to propose the best product-service offers. This Collaborative Business environment challenges Information System (IS) re-organisation to set agile, reactive and interoperable IT supports. To fulfil these requirements, one can reorganise the information system according to the urbanisation paradigm. Coupled to Service Oriented Architecture, this approach provides interoperable information systems. Nevertheless, traditional urbanization strategies lead to a partitioned and rather rigid IS organization aligned on the company s functional structure, which hinders initiating collaborative production processes, since production process is transversal and bypasses all enterprise business areas. To overcome these limits, we propose to adopt a new urbanization strategy that combines the transversal production logic with a service orientation to allow incremental production process building, based on goals to be reached. Despite of the advantages of the collaboration, in the dynamic collaboration scenarios, lack of trust can be a braking force while developing collaborative strategies. To this end, we proposed to integrate security needs and constraints into the definitions of business processes, organizational structure and technical components. Hence, the architecture we propose to implement our enterprise urbanization approach is based on a service-oriented model. We extend the traditional IT service to capture semantics associated to the industrial activity so that an industrial service model is proposed. Then security requirements are added in this model to govern access to different interfaces in a composite service. The implementation of this architecture is achieved using an industrial service bus by adding a security module extended with semantic layer on the top of PEtALS , an open source ESBVILLEURBANNE-DOC'INSA-Bib. elec. (692669901) / SudocSudocFranceF

Current trends on ICT technologies for enterprise information s²ystems

The proposed paper discusses the current trends on ICT technologies for Enterprise Information Systems. The paper starts by defining four big challenges of the next generation of information systems: (1) Data Value Chain Management; (2) Context Awareness; (3) Interaction and Visualization; and (4) Human Learning. The major contributions towards the next generation of information systems are elaborated based on the work and experience of the authors and their teams. This includes: (1) Ontology based solutions for semantic interoperability; (2) Context aware infrastructures; (3) Product Avatar based interactions; and (4) Human learning. Finally the current state of research is discussed highlighting the impact of these solutions on the economic and social landscape

Coalition based approach for shop floor agility – a multiagent approach

Dissertation submitted for a PhD degree in Electrical Engineering, speciality of Robotics and Integrated Manufacturing from the Universidade Nova de Lisboa, Faculdade de Ciências e TecnologiaThis thesis addresses the problem of shop floor agility. In order to cope with the disturbances and uncertainties that characterise the current business scenarios faced by manufacturing companies, the capability of their shop floors needs to be improved quickly, such that these shop floors may be adapted, changed or become easily modifiable (shop floor reengineering). One of the critical elements in any shop floor reengineering process is the way the control/supervision architecture is changed or modified to accommodate for the new processes and equipment. This thesis, therefore, proposes an architecture to support the fast adaptation or changes in the control/supervision architecture. This architecture postulates that manufacturing systems are no more than compositions of modularised manufacturing components whose interactions when aggregated are governed by contractual mechanisms that favour configuration over reprogramming. A multiagent based reference architecture called Coalition Based Approach for Shop floor Agility – CoBASA, was created to support fast adaptation and changes of shop floor control architectures with minimal effort. The coalitions are composed of agentified manufacturing components (modules), whose relationships within the coalitions are governed by contracts that are configured whenever a coalition is established. Creating and changing a coalition do not involve programming effort because it only requires changes to the contract that regulates it

A knowledge based approach to integration of products, processes and reconfigurable automation resources

The success of next generation automotive companies will depend upon their ability to adapt to ever changing market trends thus becoming highly responsive. In the automotive sector, the assembly line design and reconfiguration is an especially critical and extremely complex job. The current research addresses some of the aspects of this activity under the umbrella of a larger ongoing research project called Business Driven Automation (BDA) project. The BDA project aims to carry out complete virtual 3D modeling-based verifications of the assembly line for new or revised products in contrast to the prevalent practice of manual evaluation of effects of product change on physical resources. [Continues.

Tools for enterprises collaboration in virtual enterprises

Virtual Enterprise (VE) is an organizational collaboration concept which provides a competitive edge in the globalized business environment. The life cycle of a VE consists of four stages i.e. opportunity identification (Pre-Creation), partner selection (Creation), operation and dissolution. The success of VEs depends upon the efficient execution of their VE-lifecycles along with knowledge enhancement for the partner enterprises to facilitate the future formation of efficient VEs. This research aims to study the different issues which occur in the VE lifecycle and provides a platform for the formation of high performance enterprises and VEs. In the pre-creation stage, enterprises look for suitable partners to create their VE and to exploit a market opportunity. This phase requires explicit and implicit information extraction from enterprise data bases (ECOS-ontology) for the identification of suitable partners. A description logic (DL) based query system is developed to extract explicit and implicit information and to identify potential partners for the creation of the VE. In the creation phase, the identified partners are analysed using different risks paradigms and a cooperative game theoretic approach is used to develop a revenue sharing mechanism based on enterprises inputs and risk minimization for optimal partner selection. In the operation phases, interoperability remains a key issue for seamless transfer of knowledge information and data. DL-based ontology mapping is applied in this research to provide interoperability in the VE between enterprises with different domains of expertise. In the dissolution stage, knowledge acquired in the VE lifecycle needs to be disseminated among the enterprises to enhance their competitiveness. A DL-based ontology merging approach is provided to accommodate new knowledge with existing data bases with logical consistency. Finally, the proposed methodologies are validated using the case study. The results obtained in the case study illustrate the applicability and effectiveness of proposed methodologies in each stage of the VE life cycle

Hybrid modeling to support the smart manufacturing: concepts, theoretic contributions and real-case applications about Hybrid and Wisdom-based Systems

L'abstract è presente nell'allegato / the abstract is in the attachmen

Framework for collaborative knowledge management in organizations

Nowadays organizations have been pushed to speed up the rate of industrial transformation to high value products and services. The capability to agilely respond to new market demands became a strategic pillar for innovation, and knowledge management could support organizations to achieve that goal. However, current knowledge management approaches tend to be over complex or too academic, with interfaces difficult to manage, even more if cooperative handling is required. Nevertheless, in an ideal framework, both tacit and explicit knowledge management should be addressed to achieve knowledge handling with precise and semantically meaningful definitions. Moreover, with the increase of Internet usage, the amount of available information explodes. It leads to the observed progress in the creation of mechanisms to retrieve useful knowledge from the huge existent amount of information sources. However, a same knowledge representation of a thing could mean differently to different people and applications. Contributing towards this direction, this thesis proposes a framework capable of gathering the knowledge held by domain experts and domain sources through a knowledge management system and transform it into explicit ontologies. This enables to build tools with advanced reasoning capacities with the aim to support enterprises decision-making processes. The author also intends to address the problem of knowledge transference within an among organizations. This will be done through a module (part of the proposed framework) for domain’s lexicon establishment which purpose is to represent and unify the understanding of the domain’s used semantic