Dissertations / Theses on the topic 'Connaissances du designer'
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Colaço, Westphal Tacla Iéda. "De la modélisation de la compétence du designer industriel à une méthode pour valoriser son potentiel d'innovation." Compiègne, 2004. http://www.theses.fr/2004COMP1492.
Full textLn this thesis we argue thatt subjectivity should not be the only source of inspiration and expression of the industrial designer. Structuring and systematising the flow of information thatt the industrial designer receives and passes on enables him/her to cross the border between subjective and objective aspects and to find a balance. To explore this subject, we focus on the operational level where the practice of the industrial designer is observable. We claim that the innovative potential of the industrial designer's competence can be developed by the use of a method which would help him/her in evaluating choices and in particular in justifying more easily their relevance. We propose a method for the Convergence of Innovating Activities and Dealing with Information flows (CAIDI). This method is intended for industrial designers working in multifunctional teams. It aims at facilitating the balance of three information sources : customer-network, technology and market
Tayar, Nina. "Gestion des versions pour la construction incrémentale et partagée de bases de connaissances." Phd thesis, Université Joseph Fourier (Grenoble), 1995. http://tel.archives-ouvertes.fr/tel-00005065.
Full textChi, Cheng. "Personalized pattern recommendation system of men’s shirts based on precise body measurement." Electronic Thesis or Diss., Centrale Lille Institut, 2022. http://www.theses.fr/2022CLIL0003.
Full textCommercial garment recommendation systems have been widely used in the apparel industry. However, existing research on digital garment design has focused on the technical development of the virtual design process, with little knowledge of traditional designers. The fit of a garment plays a significant role in whether a customer purchases that garment. In order to develop a well-fitting garment, designers and pattern makers should adjust the garment pattern several times until the customer is satisfied. Currently, there are three main disadvantages of traditional pattern-making: 1) it is very time-consuming and inefficient, 2) it relies too much on experienced designers, 3) the relationship between the human body shape and the garment is not fully explored. In practice, the designer plays a key role in a successful design process. There is a need to integrate the designer's knowledge and experience into current garment CAD systems to provide a feasible human-centered, low-cost design solution quickly for each personalized requirement. Also, data-based services such as recommendation systems, body shape classification, 3D body modelling, and garment fit assessment should be integrated into the apparel CAD system to improve the efficiency of the design process.Based on the above issues, in this thesis, a fit-oriented garment pattern intelligent recommendation system is proposed for supporting the design of personalized garment products. The system works in combination with a newly developed design process, i.e. body shape identification - design solution recommendation - 3D virtual presentation and evaluation - design parameter adjustment. This process can be repeated until the user is satisfied. The proposed recommendation system has been validated by some successful practical design cases
Louis-sidney, Ludovic. "Modèles et outils de capitalisation des connaissances en conception : contribution au management et à l'ingénierie des connaissances chez Renault - DCT." Phd thesis, Ecole Centrale Paris, 2011. http://tel.archives-ouvertes.fr/tel-00659298.
Full textBaouch, Yacine. "Améliorer les démarches d’écoconception en prenant en compte les connaissances locales." Thesis, Université Grenoble Alpes (ComUE), 2016. http://www.theses.fr/2016GREAI026/document.
Full textIn an ecodesign process, designers try to reduce the environmental impact of the product while keeping the usual objectives of competitiveness, quality, and time to market. In a highly competitive context, companies require support to easily and strongly integrate the environment, while, at the same time, keeping a real long term perspective. The originality of this thesis is that it addresses this challenge through knowledge, and thus stakeholder, perspective. We demonstrate how a lack of local knowledge can affect the integration of environmental concerns into the design process. That is why we propose a three step answer to improve the ecodesign approach: (1) K2stor methodology highlights failures linked to a need of local knowledge, (2) K2afé approach creates a social interaction situation between the stakeholders to construct target knowledge and (3) K2alligraphie is a formalism developed to facilitate the sharing of Life Cycle Analysis reasoning between its users. These three proposals have been tested in an industrial context and through observations. The analysis of the usage of these three propositions lead us to confirm their efficiency. Finally, an ecodesign knowledge platform is outlined
Wang, Xiaohui. "Dfkn : un modèle hybride de connaissances pour la conception." Valenciennes, 1998. https://ged.uphf.fr/nuxeo/site/esupversions/61efe636-d96f-4210-a7c2-a6a427246cfa.
Full textAbeille, Joël. "Vers un couplage des processus de conception de systèmes et de planification de projets : formalisation de connaissances méthodologiques et de connaissances métier." Thesis, Toulouse, INPT, 2011. http://www.theses.fr/2011INPT0051/document.
Full textThe work presented in this thesis deals with aiding system design, development project planning and its coupling. Aiding design and planning is based on the formalization of two kind of knowledge: methodological knowledge that can be used in all kind of design projects and business knowledge that are dedicated to a particular kind of design and/or planning. The first chapter presents a state of the art about coupling system design process and project planning process and gives the problem of our work. Then, two parts deal with design and planning coupling thanks to, on one hand, methodological knowledge, and on the other hand, business knowledge. The first part presents three types of methodological coupling. The structural coupling defines design and planning entities and permits its simultaneous creation of and its association. The informational coupling defines feasibility and verification attributes for these entities and synchronizes its attribute states. Finally, the decisional coupling consists in proposing, in a single dashboard, the necessary and sufficient information to make a decision by the design project actors. The second part proposes to formalize, to exploit and to capitalize business knowledge. This knowledge is formalized with ontology of concepts. Then, two mechanisms are exploited: a case reuse mechanism that permits to reuse and adapt former design projects and a constraint propagation mechanism that allows propagating decisions from design to planning and reciprocally
Tapissier, Edouard. "Conception d’un système de management des connaissances à destination d’une PME." Thesis, Paris, ENSAM, 2019. http://www.theses.fr/2019ENAM0017/document.
Full textABSTRACT : This thesis focuses on the creation of a knowledge management system (KMS) design method for SMEs. Knowledge management (KM) can indeed be profitable to SMEs, but existing frameworks that take their specificities and needs into account face several problems. We thus interested ourselves in how to design a sustainable and adapted KMS for a SME? A literature study hinted 2 hypotheses. The first is that the characteristics and the needs of the SME can be used to choose KM tools and practices adapted to a SME, and build a custom made KMS. The second concerns the need to guide the designer and to involve the end user in the design process, in order to make the KMS sustainable and adapted. To tackle this problem, we designed a 3-step method. The first step consists in auditing the company’s important characteristics in regard to KM and its needs. The second step offers a tools and practice database and a selection process based on the company audit. The selected tools and practices are then used to design a tailor-made KMS while taking resources into account and involving end users. The third step consists in implementing the KMS in the firm, training the users and allowing them to perform the necessary evolutions according to emerging needs. This method was applied in Sysnav, a 25 employees SME, and resulted in the design of a well-adapted KMS
Ory, Jérémie. "Connaissances pour la conception et la perception de styles topographiques." Thesis, Paris Est, 2016. http://www.theses.fr/2016PESC1058/document.
Full textThe design of topographic maps of reference is characterised both by an increasing amount of reference geographic databases and by design geo-services operating in distributed architectures. In this context, one of the major challenges consists in enriching the current knowledge on cartographic design in order to preserve the maps quality, i.e. they are legible, effective and usable. We assume that the topographic style renders maps legible and effective thanks to the visual codes and guides, well-known by the users. Our research purpose aims at formalising the concept of a topographic style as a cartographic family with a recognizable visual signature in order to produce new topographic maps.We propose to formalize key concepts of visual signature and cartographic family in a unified model. We validate and instantiate this model in setting up interviews of cartography experts and in designing user’s experiments allowing to evaluate the visual recognition of maps and graphic signs belonging in Swisstopo and IGN-France cartographic families. With results of the two user’s experiments, we characterize the visual signature of the two cartographic families. Then, we propose cartographic design guidelines in order to produce reference topographic maps based on the characterisation of the visual signature for two cases studies: (1) design a map belonging in a given cartographic family, (2) design a map on the border of two countries / two national mapping agencies
Dai, Xinghang. "Cooperative knowledge discovery from cooperative activity : application on design projects." Thesis, Troyes, 2015. http://www.theses.fr/2015TROY0020/document.
Full textModern design projects tend to be more and more complex and multi-disciplinary in terms of both organization and process. Knowledge management enables a company to reuse its experience in order to improve organizational learning. Several knowledge engineering methods are defined to obtain expert knowledge. However, no knowledge approaches have succeeded to extract cooperative knowledge due to its particular features: cooperative knowledge is produced in cooperative activities; no single actor can claim to explain globally the cooperative activity with no personal bias. How can we reuse cooperative design project knowledge is the new challenge. In my thesis “knowledge discovery from cooperative activities, application on design projects”, the term “knowledge discovery” is redefined according to knowledge engineering approaches, and guided by the spirit of knowledge management. The nature of cooperative knowledge is studied and a novel approach of classification is proposed to discover knowledge from cooperative activities, and it is further elaborated in the context of design projects, examples on software engineering, eco-design and mechanical design are demonstrated
Mcharek, Mehdi. "Gestion des connaissances pour la conception collaborative et l’optimisation multi-physique de systèmes mécatroniques." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLC098/document.
Full textMechatronic products are complex and multidisciplinary in nature. The requirements to design them are often contradictory and must be validated by the various disciplinary engineering (DE) teams. To address this complexity and reduce design time, disciplinary engineers need to collaborate dynamically, resolve interdisciplinary conflicts, and reuse knowledge from previous projects. In addition, they need to work seamlessly with the Systems Engineering (SE) team to have direct access to requirements and the Multidisciplinary Design Optimization (MDO) team for global validation. We propose to use Knowledge Management techniques to structure the knowledge generated during collaboration activities and harmonize the overall design cycle. Our primary contribution is a unification approach, elaborating how SE, DE, and MDO complement each-other and can be used in synergy for an integrated and continuous design cycle. Our methodology centralizes the product knowledge necessary for collaboration. It ensures traceability of the exchange between disciplinary engineers using graph theory. This formalized process knowledge facilitates MDO problem definition
Giovannini, Antonio. "A knowledge representation framework for the design and the evaluation of a product variety." Thesis, Université de Lorraine, 2015. http://www.theses.fr/2015LORR0002/document.
Full textThe product variety design is an essential process in order to deal with the flexibility requested by the mass-customisation. During the product variety stage, customers and expert are involved in the definition of the best variety. Therefore a deep understanding of the links between knowledge coming from the customer domain, product domain and process domain is needed. In this thesis the research focus is on the formalisation of this knowledge. Indeed, even if many efforts are present in the knowledge representation literature, logics are always used to build these links. But appropriate reflections about the use of logics can lead to recognise the risk of ambiguity of the representations, i.e. more than one interpretation of the same represented object are possible. This ambiguity would make the represented knowledge not appropriate for the product variety design. In this work, we propose a framework for the knowledge representation based on the anti-logicism. Since the samples of anti-logicist systems (e.g. multi-agents, robots) have shown an intelligent behaviour without a representation based on logics, we use the principles the anti-logicism to propose our knowledge representation framework. A knowledge representation framework that allows to connect the customer requirements to the manufacturing process parameters is proposed. The core feature of the models based on this framework is the non-ambiguity. Indeed, each piece of knowledge that composes the model can be interpreted in one unique way. This feature allows the perfect collaboration between customer, product engineers and process engineering during the variety design stage. Once the pieces of knowledge coming from different domains are integrated in one model, the framework explains how to generate alternatives of product-process variety by starting from a given customer set. Finally a criterion to compare the different generated alternatives of product-process variety is proposed. A method to instantiate the framework on a 3D CAD has been developed. Moreover, a prototype that uses the knowledge model along with a mathematical solver to propose the best variety has been developed. The impact of the framework on the selection process and on the design process of a customisable product (i.e. water coil) is tested. The test of the instantiation and the prototype allows to show the advantages and the limit of the proposals
Laverne, Floriane. "Concevoir avec la Fabrication Additive : Une proposition d’intégration amont de connaissances relatives à une innovation technologique." Thesis, Paris, ENSAM, 2016. http://www.theses.fr/2016ENAM0042/document.
Full textThe onset of Additive Manufacturing (AM) upsets design practices and is receiving attention because its potential is promising for product innovation. However, while innovation issues are paramount during early design stages, few designers have sufficient knowledge about AM and use it poorly to develop creative solutions. Thus, our research objective is the increase of the innovation capacity of the design team through the integration of AM knowledge into early design. To do this, we propose to use “just needed” AM knowledge, i.e., AM knowledge whose contents, supports and instancing are tailored to the design team needs. Moreover, we propose that this integration takes place in a design model that allows the Design With Additive Manufacturing (DWAM) approach. Our contributions are both the proposal of a methodology based on Knowledge Management dedicated to the identification, the capitalization and the valorization of the “just needed” AM knowledge; and of a design model in 3 stages, in which the useful for DWAM approach AM knowledge is specified. Finally, this enriched model is valued in a digital tool in order to improve collaborative and concurrent design
Fernandez, Laure. "Transposition en architecture des connaissances d'ingénierie environnementale et des savoirs relatifs au choix des matériaux." Thesis, Toulouse, INSA, 2010. http://www.theses.fr/2010ISAT0020/document.
Full textNowadays, environmental proceedings can use more and more methods and design tools to start with the conception. However, these technical methods turn out to be untapped into architectural projects. This question orientated our research towards environmental quality of materials and processes of implementation. Through the update of the knowledge and innovative methods, our work tends to increase the capacity of operational practice in architecture. The implementation of a design assistance tool - easy to use for non experts and providing several clearly configuration fields, based on caseworks and linked to quality of materials - is a significant evolution in architectural communities. We point up several innovative propositions for future design assistance tools. We illustrate it by the setting up of a prototype named MaTerre’iO. This mock up informs architectural designers about the knowledge upon materials, and more specifically on the environmental engineering knowledge.The main repercussion of our researched work is to contribute to initiate an innovating interface between environmental engineering topics and expectations of architectural design
Roldan, Reyes Eduardo. "Extraction et modélisation de connaissances : Application à la conception de procédés." Thesis, Toulouse, INPT, 2012. http://www.theses.fr/2012INPT0133/document.
Full textDesign is a complex and crucial process within the lifecycle of products and production processes. In the current context, design engineers and researchers notice an increasing in complexity of products and processes, in order to meet all the requirements coming from all the participants(manufacturers and users alike) in the life cycle and in the normative world as well. Knowledge management is an important asset to accelerate this process and improve its efficiency. Current research on knowledge management is producing new methods and tools to identify, formalize, exploit and disseminate knowledge from past designs experiences to produce new solutions rapidly. Among existing approaches, Case-Based Reasoning (CBR) and Constraint Programming (CP) are suited to needs identified in Process Engineering. Based on the analysis of these two approaches, this work proposes a coupling of CBR and the CP to provide a methodological framework and a software tool to assist design. The CBR allows to capitalize and retrieve past experiences. However, transforming the past solution to fit the new problem requirements needs the addition of new knowledge also known as Adaptation Knowledge. CP, meanwhile, offers an appropriate framework to model and manage knowledge required to obtain an appropriate solution to a problem, but also the adaptation knowledge. In addition to the formalization of adaptation knowledge, one of the remaining major difficulties lies in knowledge acquisition. In the proposed approach, the traditional CBR cycle has been modified to create a user interaction loop. When an adaptation failure occurs, this loop is activated and the expert is asked to make the necessary changes to achieve an appropriate solution. This correction is an opportunity to acquire this new knowledge online, which will be subsequently updated and added into the system. A case study on the design of a unit operation of Process Engineering is used to illustrate the approach
Badin, Julien. "Ingénierie hautement productive et collaborative à base de connaissances métier : vers une méthodologie et un méta-modèle de gestion des connaissances en configurations." Phd thesis, Université de Technologie de Belfort-Montbeliard, 2011. http://tel.archives-ouvertes.fr/tel-00911883.
Full textCarvajal, perez Daniel. "Gérer le patrimoine de création Dom Pérignon : Modéliser et organiser la transmission de connaissances pour la générativité." Thesis, Paris Sciences et Lettres (ComUE), 2018. http://www.theses.fr/2018PSLEM058.
Full textHow can knowledge transmission help designers in the luxury industries to reinvent the brand's objects and experiences while remaining rooted in its heritage? This open question in the management and design sciences is of interest to the luxury sector, and especially to Dom Pérignon, in constant quest of renewal. Indeed, to innovate without betraying tradition is at the origin of several tensions. In this thesis, we show how the transmission of a "creative heritage" can help designers in the luxury industry to overcome these tensions. By studying the creative heritage of Dom Pérignon and those contained in various haute cuisine books, we highlight three characteristics of this creative heritage that constitute as many lines of research: First, we describe the positive effects on the originality and the operational efficiency that the transmission of a creative heritage can have on the collectives of designers leading innovation projects. Secondly, by using design theories, we construct a formal model linking the knowledge structures and the types of generativity that a creative heritage can promote. We show that a same domain can contain several generativities, that a same creative heritage can favor several types of generativity that might seem incompatible in principle, and that these different types of generativity can evolve over time. Finally, we show that the design of a creative heritage requires interactions between experienced and recipient designers to formalize, reorganize and share a language of the known and a language of the unknown. The latter is composed of the elements of the former. We also highlight that the formal structure of a creative heritage can reflect the structure of the design organization
Blondet, Gaëtan. "Système à base de connaissances pour le processus de plan d'expériences numériques." Thesis, Compiègne, 2017. http://www.theses.fr/2017COMP2363/document.
Full textIn order to improve industrial competitiveness, product design relies more and more on numerical tools, such as numerical simulation, to develop better and cheaper products faster. Numerical Design of Experiments (NDOE) are more and more used to include variabilities during simulation processes, to design more robust, reliable and optimized product earlier in the product development process. Nevertheless, a NDOE process may be too expensive to be applied to a complex product, because of the high computational cost of the model and the high number of required experiments. Several methods exist to decrease this computational cost, but they required expert knowledge to be efficiently applied. In addition to that, NDoE process produces a large amount of data which must be managed. The aim of this research is to propose a solution to define, as fast as possible, an efficient NDoE process, which produce as much useful information as possible with a minimal number of simulations, for complex products. The objective is to shorten both process definition and execution steps. A knowledge-based system is proposed, based on a specific ontology and a bayesian network, to capitalise, share and reuse knowledge and data to predict the best NDoE process definition regarding to a new product. This system is validated on a product from automotive industry
Varret, Antoine. "De la conception collaborative à l'ingénierie peformante de produits optimisés à base de connaissances métier." Phd thesis, Université de Technologie de Belfort-Montbeliard, 2012. http://tel.archives-ouvertes.fr/tel-00720656.
Full textEl, Mawas Nour. "Architecture pour la co-conception des jeux sérieux participatifs et intensifs en connaissances." Thesis, Troyes, 2013. http://www.theses.fr/2013TROY0020/document.
Full textThis PhD aims to confront some scientific challenges concerning the scenarios’ conception of Serious Games, their use through a better share by designers within the context of targeted learning. The findings motivating our work are (1) the significant participation of trainers in the design phase, (2) the growing needs for expert trainers to formalize scenarios describing rarely complex situations, (3) the divergence of existing serious games to these designers which cover a limited number of scenarios due to their high cost, (4) the low re-use’ level of scenarios that have already happened in daily life.Our questioning will lead us to see how we must design serious games for training in complex areas of expertise where reference knowledge is neither stabilized nor unanimous, but rather dynamic and continuously evolving. After having examined the principal mains of application of the Serious Game and having defined it, the study of this questioning led us to propose the ARGILE (Architecture for Representations, Games, Interactions, and Learning Among Experts) architecture, suitable for "participatory and knowledge-intensive" serious games
Geromin, Anthony. "Synthèse des connaissances métiers pour l’émergence des modèles géométriques, application aux arbres de transmission de puissance mécanique." Thesis, Paris, ENSAM, 2019. http://www.theses.fr/2019ENAM0034.
Full textAlthough many new methodological and modelling concepts have been proposed by the scientific community, current industries are still focusing their engineering design process on CAD model since they assume it is the starting point of many analyses with respect to product life cycle (CAM, FEA, LCA…). Presented work shows the application of modelling concepts that lead the progressive justification of CAD model with respect to knowledge synthesis by least commitment. Design experts are first formalizing their knowledge that is therefore translated to form features and parameters (topology, position, orientation, dimensions…). The results show that this new design approach and models support design intents and rational, but the generated CAD model is not fully justified. That drives to many conclusions: CAD model is many often non-100% rational by designers’ knowledge, design solution space is therefore larger than the one modelled in CAD software and could be used to foster innovation. Presented design methodology was applied to helicopter’s drive shaft design, implemented throughout KANO 3D software and deployed within the company Asquini MGP
Valtchev, Petko. "Construction automatique de taxonomies pour l'aide à la représentation de connaissances par objets." Université Joseph Fourier (Grenoble), 1999. http://www.theses.fr/1999GRE10276.
Full textBouzeghoub, Mokrane. "Secsi : un système expert en conception de systèmes d'informations, modélisation conceptuelle de schémas de bases de données." Paris 6, 1986. http://www.theses.fr/1986PA066046.
Full textTalbourdet, Fabien. "Développement d'une démarche d’aide à la connaissance pour la conception de bâtis performants." Thesis, Vaulx-en-Velin, Ecole nationale des travaux publics, 2014. http://www.theses.fr/2014ENTP0010/document.
Full textBoth aspirations of users and improvements in the thermal regulation require that the comfort and the energy efficiency of new buildings improve. In addition to these requirements, regulations are strengthening in many fields such as acoustics, fire safety and mechanical performance. The combined effects of these factors are making it increasingly hard to design buildings. This thesis presents a knowledge-aid approach for designing high-performance buildings based on an optimization method. This approach aims to provide clear knowledge of the potential of projects (exploration of various options) for architects and design offices at the beginning of the design that will allow them to design the best possible high-performance buildings. This potential is evaluated using external and internal geometric parameters as well as the energy characteristics of buildings. This approach also allows them to assess geometries and design solutions which are intended to be used for their projects.This approach will be applied to an office building in Lyon, France. For the tested case, the approach obtains quickly efficient solutions and also finds, for some parameters, values to design efficient solutions on part of the Paretofront or in this entire front. This application of the approach also shows that there may be solutions which are close in terms of energy needs and cost but could be very different on design parameters. This problem could influence robustness of the approach but highlights a new problem. This thesis then lays the foundation of a new study on this topic
Longueville, Barthélémy. "Capitalisation des processu de décision dans les projets d'innovation: Application à l'automobile." Phd thesis, Ecole Centrale Paris, 2003. http://tel.archives-ouvertes.fr/tel-00009965.
Full textLes contributions de ce travail de recherche sont centrées sur la compréhension des mécanismes de décision et le support à leur bon déroulement. En premier lieu, un modèle de processus de décision, appelé INDIGO est proposé. Il a pour objectif de représenter l'ensemble des informations associées aux processus de décision, regroupées en un modèle unique, multi-vues. Il s'agit de la vue structure de la décision (les éléments d'information de l'espace de décision), de la vue processus de décision (les activités de décision), de la vue organisation de la décision (les acteurs impliqués dans la décision). Un Système de Gestion des Connaissances, appelé MEYDIAM est ensuite proposé. Il est fondé sur la proposition d'une nouvelle approche de Gestion des Connaissances. Il permet la création et la réutilisation de connaissances liées à la décision par l'utilisation d'informations structurées par le modèle INDIGO. MEYDIAM est principalement constitué dune mémoire de projet. Cet outil, au moyen d'interfaces appelées objets de connaissances, permet de capturer, au fil de l'eau les informations associées aux processus de décision et de les
réutiliser. Les contributions ont été validées via une maquette informatique testée dans le cadre des projets d'innovation du groupe PSA PEUGEOT CITROËN.
Fayemi, Pierre-Emmanuel. "Innovation par la conception bio-inspirée : proposition d'un modèle structurant les méthodes biomimétiques et formalisation d'un outil de transfert de connaissances." Thesis, Paris, ENSAM, 2016. http://www.theses.fr/2016ENAM0062/document.
Full textBiomimetics applies principles and strategies which stem from biological systems in order to facilitate technological design. Providing a high innovation potential, biomimetics could become a key process for various business. However, there are still a few challenges to overcome in order for the bioinspired design to become a sustainable approach. The work which has been carried out addresses this bioinspired design diffusion with two distinct focuses. First of all, they tend to standardize conceptual fields for bio-inspiration and biomimetic process models to enable the evaluation of tools supporting said design process. This methodological assessment, addressed from an objective and subjective point of view, results in the formalization of a structuring model, a classification tree which guides designers through the biomimetic process. Alongside the development of this methodological reference framework establishment, the work tends to overcome another obstacle of the bioinspired design implementation which is the interaction between biology and engineering. By developing a specific tool, the research studies offer a model which functionally describes biological systems without biological expertise prerequisites. The concatenation of these accomplishments addresses the main issue of these disciplinary fields: its development through the dissemination of its application to industrial innovation, in order to encourage the emergence of “biomimetic products” at the expense of “bio-inspired accidents”
Kwassi, Elvis Daakpo. "Proposition d'une méthodologie pour l'optimisation de formes structures mécaniques." Thesis, Reims, 2012. http://www.theses.fr/2012REIMS007.
Full textEngineering design optimization of mechanical structures is nowadays essential in the mechanical industry (automotive, aeronautics etc.). To remain competitive in the globalized world, companies need to create and design structures that in addition to complying specific mechanical performance should be less expensive with short production time. Engineers must then realize forms and shapes that are a better compromise, between mechanical and functional performance, weight, manufacturing costs etc. In this manuscript, we propose an integration of optimization process in a functional process design of a methodological point of view. It has the advantage of taking into account the integration of business knowledge needed to design the structures in the optimization process. The process can’t be properly applied only if we master the fundamentals of the optimization. This led us in a first time, to talk about the engineering design optimization of mechanical structures in general, and the algorithms used in the different disciplines available to engineers. Our proposed optimization process was completed by decision trees that allowed the engineers to make choices based on their optimization problems in foundry, plastics and stamping companies. This optimization process integrated with a functional design approach will be illustrated with industrial examples that allow us to validate our proposal and demonstrate the effectiveness of the choices from decision trees
Caradant, Dominique. "Application du concept d'objet a la representation et a l'utilisation de connaissances dans un systeme de conception assistee par ordinateur en architecture." Toulouse 3, 1987. http://www.theses.fr/1987TOU30082.
Full textToure, Carine. "Capitalisation pérenne de connaissances industrielles : Vers des méthodes de conception incrémentales et itératives centrées sur l’activité." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSEI095/document.
Full textIn this research, we are interested in the question of sustainability of the use of knowledge management systems (KMS) in companies. KMS are those IT environments that are set up in companies to share and build common expertise through collaborators. Findings show that, despite the rigor employed by companies in the implementation of these KMS, the risk of knowledge management initiatives being unsuccessful, particularly related to the acceptance and continuous use of these environments by users remains prevalent. The persistence of this fact in companies has motivated our interest to contribute to this general research question. As contributions to this problem, we have 1) identified from the state of the art, four facets that are required to promote the perennial use of a platform managing knowledge; 2) proposed a theoretical model of mixed regulation that unifies tools for self-regulation and tools to support change, and allows the continuous implementation of the various factors that stimulate the sustainable use of CMS; 3) proposed a design methodology, adapted to this model and based on the Agile concepts, which incorporates a mixed evaluation methodology of satisfaction and effective use as well as CHI tools for the completion of different iterations of our methodology; 4) implemented the methodology in real context at the Société du Canal de Provence, which allowed us to test its feasibility and propose generic adjustments / recommendations to designers for its application in context. The tool resulting from our implementation was positively received by the users in terms of satisfaction and usages
Souili, Wendemmi Moukassa Achille. "Contribution à la méthode de conception inventive par l'extraction automatique de connaissances des textes de brevets d'invention." Thesis, Strasbourg, 2015. http://www.theses.fr/2015STRAD026.
Full textPatents are industrial property titles that give their holders a monopoly over the patented invention. It is possible to find a sort of history of the evolution of the artifact. In this context the designer often like to do research in patent documents in order to benefit from the knowledge contained inside to structure the inventive process. Developed to assist designers in their innovation approach, the Inventive Design Method (IDM) is part of the pattern of dialectic. IDM has clarified the concepts at stake in the description of the evolution of technical systems and artifact. These items often interest designers and are essential to understanding the underlying problem and collecting of all features on which to act; and the effect of variations on the artifact. This thesis, firstly, deals with patent document analysis from a linguistic point of view, in order to know its typology. Then, it is possible to identify in the patent document, the knowledge likely to be useful to IDM and formalize it as a computer program. The approach proposed in this paper is based on text mining techniques. It uses a method based on linguistic markers using lexical and syntactic patterns from the field of natural language processing. This method of extraction of useful concepts for IDM allows the establishment of a kind of initial mapping of past and possible changes in the future of the artifact characteristics. The interest is also to greatly facilitate the preliminary analysis of knowledge on the said artifact
Fatfouta, Naouress. "Towards a support system for simulation aided-design in the development phase of automotive industry." Electronic Thesis or Diss., université Paris-Saclay, 2020. http://www.theses.fr/2020UPASC025.
Full textThis research aims to support the simulation-aided design process in the development phase of vehicles. The development phase is supported by modelling and simulation and consists of iteratively refining the design specifications, evaluating the vehicle's performance and solving design issues encountered. We are in a context of simulation-aided design since the decision about the vehicle design is mainly based on simulation. In this thesis research, our focus is mainly on the crash simulation analysis process. The simulation-aided design is knowledge-intensive; it depends heavily on the knowledge of analysts and experts.First, we identify the difficulties and challenges encountered in the design issue resolution process. Therefore, we conduct an empirical study to understand better the simulation-aided design process in use in the company. The industrial challenges have been identified based on a two-level analysis, the analysts' team level and the project level. The challenges include the access and share of knowledge, data consistency, and the formalisation of approaches and the process. The empirical study confirms that knowledge is a key factor for the improvement of the simulation-aided design process.Moreover, we propose an ontology to formalise crucial knowledge for car crash simulation. The ontology we have developed is called the Crash Simulation Post-Processing Ontology. This ontology formalises knowledge related to the post-processing phase of car crash simulation and the interpretation of simulation results. The aim is to formalise knowledge related to the resolution of design issues and the proposal of design changes.Furthermore, the multidisciplinary, highly collaborative and contextual nature of engineering design has raised the need to support integrated and collaborative product development. Successful collaborative engineering design depends on the ability to manage and share engineering knowledge. Therefore, nowadays, knowledge management plays a crucial role in business competitiveness, hence our proposal of an integrated and collaborative ontology-based approach to knowledge management. We develop an ontology-based knowledge management support system with a focus on knowledge retrieval. The architecture of the support system is proposed, and implementation for its evaluation is undertaken. The support-system proposed is proven effective for capturing engineering knowledge, facilitating design-issue resolution and saving analysts' time
Khayat-Mellah, Nadia. "Étude de l'intégration d'une base de connaissances à un système de gestion de bases de données pour la CAO en architecture." Châtenay-Malabry, Ecole centrale de Paris, 1989. http://www.theses.fr/1989ECAP0111.
Full textPereira, Andréa Franco. "Applications des connaissances issues du développement durable, de l'environnement et de la systémique, au design industriel de produits dans une approche de "macroconception"." Compiègne, 2001. http://www.theses.fr/2001COMP1344.
Full textChaouachi, Amor. "Modelisation d'images coherentes, en objets, dans une base de connaissances : application a l'enseignement assiste par ordinateur." Toulouse 3, 1987. http://www.theses.fr/1987TOU30114.
Full textBelloy, Philippe. "Intégration de connaissances métier dans la conception : un modèle pour les pièces mécaniques : application à l'usinage et à l'estampage." Université Joseph Fourier (Grenoble), 1994. http://www.theses.fr/1994GRE10219.
Full textEl, amine Mehdi. "Intégration de la maturité des connaissances dans la prise de décision en conception mécanique : application à un système solaire." Thesis, Paris, ENSAM, 2015. http://www.theses.fr/2015ENAM0046/document.
Full textThe successful development of industrial products has a considerable economic challenge for the company. Decisions on concepts and product architecture have a significant impact on the overall cost of the product life cycle. Manufacturers are then increasingly encouraged to adopt methods to streamline design decisions. These methods must be consistent with the level of knowledge acquired on alternative design, the nature of decision making and assessment tools available. Thus, both methods of decision support have been developed in this thesis based on the study design phase.A first method is proposed for the upstream design stage in which the goal of the company is to reduce the number of concepts initially proposed to focus its efforts and resources on the most promising concepts. During this phase, the products are defined very loosely. Designers must then make a lot of assumptions when proposing role models to assess the concepts. These models, which express a knowledge of explicit nature, are insufficient to make choices concepts. To overcome this difficulty, we are moving in our study to the implicit knowledge (or subjective), obtained through the experience and expertise acquired by the designers. To integrate this knowledge in decision-making, it is first formalized through tools such as preferably functions. The overall approach to decision support proposed for combining both the implicit knowledge and explicit knowledge (represented by the role models) to assess each concept in terms of ability to meet the minimum requirements for validation and level fitness with the design goals. The objectives and preferences of decision makers are, in turn, structured and formalized through the OIA model (Observation-Interpretation-Aggregation) previously developed in the laboratory I2M-BMI.A second method was proposed for the downstream design phase that aims to set the parameters of the final product (choice of materials, dimensions, etc.) after the concept was chosen. During this phase, the product is defined in a more precise manner and behavior patterns are more representative of the relevant physical phenomena of the concept studied. These models are however based on assumptions which sometimes lead to a questioning their accuracy, especially for some design parameters. Fix the product parameters based solely on these patterns of behavior requires taking into account their accuracy level. We have therefore developed an accuracy indicator of these models that integrates on the one hand, an objective assessment which is the measure of difference between the model and a reference behavior (assumed correct) and, secondly, on a subjective assessment that is based on the distance measurement with the reference solution (prototyped solution) and trusts functions established by the designers. The combination of objective and subjective assessment of the accuracy provides at the end a general indicator of accuracy able to cover the entire design space. The indicator thus obtained is used in a method of decision support that qualifies each candidate solution in terms of risk posed by the accuracy of the models and level of satisfaction of design objectives (based the model OIA)
Roger, Émilie. "Le contrôle de la gestion des connaissances d'un fournisseur stratégique : une application aux projets de la Direction des applications militaires du Commissariat à l'énergie atomique." Thesis, Aix-Marseille, 2014. http://www.theses.fr/2014AIXM2013/document.
Full textInterorganizational knowledge management is a growing concern for organizations and, in particular, for those which belong to the French nuclear deterrence. It contributes to the mastery of knowledges required for the success of a project implying several companies. Carried out in the military applications Division of the French atomic energy Commission, our PhD thesis looks at the process allowing a client organization to participate to the way a supplier acquire, conserve, transfer and apply knowledges relevant to the deliveries that it purchased. Focusing on the client / strategic supplier relationship, the research addresses an unexplored aspect of interorganizational knowledge management: the knowledge management control of a strategic supplier. Since knowledge management control of a strategic supplier can be defined as the influence that a customer may have on how a strategic supplier manages its knowledge, research demonstrates that it allows the client to participate in knowledge management deployed by the strategic supplier. From a design science approach, our PhD thesis deals with this research object owing to the design of a methodological guide which proposes a dedicated process. The results of the research lead to the design of a process which consists in four stages. If it was in use, the process implementation could help a customer to control knowledge management of a strategic supplier and, finally, enable the mastery of knowledges related to the purchased deliveries
Bruneau, Marina. "Une méthodologie de Reverse Engineering à partir de données hétérogènes pour les pièces et assemblages mécaniques." Thesis, Compiègne, 2016. http://www.theses.fr/2016COMP2267/document.
Full textThis thesis deals with a methodology of Reverse Engineering (RE) of mechanical assemblies from heterogeneous data in a routine context. This activity consists, from the existing data of a part or an assembly, in rebuilding their digital mock-up. The data used in entrance of our process of RE can be drawings, photos, points clouds or another existing version of the digital mock-up. The proposed approach, called Heterogeneous Data Integration for Reverse Engineering (HDI-RE), is divided into three steps : the segmentation, the signature and the comparison of the initial data with a knowledge database. The signatures of the studied object are compared with the signatures of the same type existing in the database in order to extract components ordered by similarity (distance with the object). The parameterized digital mock-up which is the most similar to the object is then extracted and its parameters identified from the initial data. Data set processing, called "heterogeneous" data, requires a solution which is able to manage on one hand, the heterogeneousness of the data and the information which they contain and on the other hand, the incompleteness of some data which are in link with the noise (into points cloud) or with the technology used to digitize the assembly (ex: scanner or photography)
Kherroubi, Souad. "Un cadre formel pour l'intégration de connaissances du domaine dans la conception des systèmes : application au formalisme Event-B." Thesis, Université de Lorraine, 2018. http://www.theses.fr/2018LORR0230/document.
Full textThis thesis aims at defining techniques to better exploit the knowledge provided from the domain in order to account for the reality of systems described as complex and critical. Modeling is an essential step in performing verifications and expressing properties that a system must satisfy according to the needs and requirements established in the specifications. Modeling is a representation that simplifies the reality of a system. However, a complex system can not be reduced to a model. A model that represents a system must always fit into its observational theory to account for any anomalies that it may contain. Our study clearly shows that the context is the first issue to deal with as the main source of conflict in the design process of a system. The approach adopted in this thesis is that of integrating knowledge of the domain by associating the system to design with declarative formalisms qualified of descriptive ones that we call ontologies. We pay a particular attention to the Event-B formalism, whose correct-by-construction approach called refinement is the main mechanism at the heart of this formalism, which makes it possible to make proofs on abstract representations of systems for expressing and verifying properties of safety and invariance. The first problem treated is the representation and modeling of contextual knowledge in V&V of models. Following to the study looked at the different sources of conflict, we established new definitions and rules for a refinement context knowledge extraction for Event-B V&V. A study of logical formalisms that represent and interpret the context allowed us to define a new mechanism for better structuring Event-B models. A second study concerns the contribution that domain knowledge can make to the V&V of models. We define a logic for the Event-B formalism with domain constraints based on the description logic, and we define rules to integrate domain knowledge for model V&V. The evaluation of the proposals made deal with very complex case studies such as voting systems whose design patterns are also developed in this thesis. We raise fundamental issues about the complementarity that the integration of domain knowledge can bring to Event-B models by refinement using ontological reasoning, and we propose to define a new structures for a partially automated extraction on both levels, namely the V&V
Brun, Juliette. "Modéliser le pouvoir expansif de la structuration des connaissances en conception innovante : mise en évidence des effets génératifs du K-preordering grâce à l'étude du non-verbal." Thesis, Paris Sciences et Lettres (ComUE), 2017. http://www.theses.fr/2017PSLEM007/document.
Full textThe thesis investigates the generative power of knowledge structuration for innovative design. Analyzing the generativity of non-verbal knowledge structures - especially, architectural drawings -, this work identifies a new design method by showing that the transformation of links between knowledge bases fosters concept generation. In particular, a restructuration that aims to design a splitting structure - a structure avoiding modular and deterministic links between knowledge bases - has a strong generative power. During collective creativity sessions, non-verbal tools such as sketches, pictures or 3D-printing, can enhance knowledge restructuration: however, three necessary conditions, which are presented in the thesis, have to be met in order to ensure performance of the non-verbal tools used during the session. Moreover, this generative restructuration - also called K-preordering - differs from the classic design exploration by alternative concepts generation. But the two design modes are not mutually exclusive: the thesis proposes a design process that alternates K-preordering and concept generation. This process is applied in two studies, which were led as action research and intended to foster the reorganization of knowledge structures that were both stabilized and shared at the organizational level. In particular, these studies show how such a process helps enhancing the design of transdisciplinary research programs
Hong, Yan. "Développement d’un système intelligent d’aide à la création de vêtements personnalisés pour des personnes à morphologie atypique par exploitation de connaissances." Thesis, Lille 1, 2018. http://www.theses.fr/2018LIL1I014/document.
Full textThis PhD research project aims at developing a new Personalized Garment Design Support System (PGDSS) for People with Atypical Morphology (PWAM). This system enables to quickly develop garments adapted to their special Functional, Expressive and Aesthetic (FEA) needs and atypical morphologies. In order to realize the proposed PGDSS, two subsystems are developed: the Personalized Fashion Recommendation System (PFRS) and Virtual 3D-to-2D Garment Prototyping Platform (VGPP). The PFRS is developed for selecting the most relevant personalized garment design solutions in terms of color, fabric and style, while the VGPP enables designers to quickly create virtual garments according to their design criteria (product profiles) and visualize them in order to adjust design parameters. The proposed PGDSS can be fully used online. It can be further connected to a garment e-shopping platform or an offline automatic garment manufacturing system.The design factors for personalized garments have been identified and analyzed in my PhD research. The new products generated by the proposed system will meet the specific demands and functions imposed by people with atypical morphology in terms of ergonomics, biophysics, psychology, aesthetics, comfort and convenience. The proposed system is able to offer more personalized designs at low-cost level for highly customized garment market
Bugeaud, Florie. "ISamsara : pour une ingénierie des systèmes de services à base de méréologie et d'hypergraphes." Troyes, 2011. http://www.theses.fr/2011TROY0005.
Full textThe « service orientation » and its challenges are now well known within companies. How-ever, the analysis of the activities of services designers at a telecommunications operator, as well as the state of the art about the service theories and models show the still ill-specified nature of that term. Our work is anchored in the discipline of computer science, but it pursues the discussion of the SSME multidisciplinary approach (Service Science Management and Engineering). It first redefines the concept of service according to a systemic perspective. It also adopts a theory of the service relationship as a « traffic relationship », and various philosophical inspirations that help us to ontologically conceive reality as nested and interconnected processes. Therefore, we formalize the service as a dynamic phenomenon emerging from the coordination of heterogeneous entities, for which the « agencements theory » seems useful. Then, we propose to represent and simulate these « servicial agencements » with a hypergraph and a mereo-relational ontology revealing the structure but also to the calculated experience’s scenarios. The proposed method and tool’s proof of concept for the modeling and simulation of servicial agencements (iSamsara) are part of the problem of constructing a real Services Systems Engineering. Moreover, this work takes place in a con-text of knowledge engineering related to the process of opportunities study of a telecom operator
Schmitt, Daniel. "Expérience de visite et construction des connaissances : le cas des musées de sciences et des centres de culture scientifique." Phd thesis, Université de Strasbourg, 2012. http://tel.archives-ouvertes.fr/tel-00802163.
Full textSchofer, Malte. "Processus et méthodes pour la résolution de problèmes interdisciplinaires et pour l'intégration de technologies dans des Domaines fortement Basés sur la Connaissance." Thesis, Paris, ENSAM, 2015. http://www.theses.fr/2015ENAM0005/document.
Full textMost of the major technological challenges of the 21st century like e.g., reduction of greenhouse gas emission and sustainable energy supply, but also the bio- and nano-technological revolutions require intensified collaboration between different disciplines of engineering design as well as of natural science.The present Ph.D. research tries to provide some insight into the questions of• How to provide methodological support for creative problem solving in interdisciplinary groups composed of engineers and natural scientists?• How to support the process of the integration of a technology originating from a knowledge-intensive domain in order to solve a given design problem?The literature analyzed relevant aspects on several systemic levels (global, institutional, team-, individual and problem- perspective).The review allowed highlighting problems related to both, the activity as such as well as to the methods which seem a priori appropriate to support it. In this regard, incoherent interpretive schemes and majority influence are examples for the former and performance drawbacks as well as learning difficulties associated to hierarchical methodologies are instances of the latter.Based on the results of the literature review, two experiments were conducted.The first experiment inquired into the impact of disciplinary group composition (H1) as well as of the applied methodology (H2) on the creative group problem solving process and its outcomes.In a laboratory experiment 60 participants, 45 with a life science background and 15 with a mechanical engineering background were trained either in instances of intuitive approaches (Brainstorming, Mind Mapping) or in analytical, hierarchical methodology (TRIZ/USIT). Then, they had to solve an ill-defined medical problem in either mono- or multidisciplinary teams. The creative process as well as the output was documented using questionnaires and documentation sheets. Further the output was evaluated quantitatively by two domain experts before it was categorized qualitatively.Statistical analyses (ANOVA, Correlation parameters and Attraction rates), to a certain extent, support H1 and H2. More importantly however, the experiment shows differences related to method performance in general and as a function of disciplinary group composition in particular.The second experiment investigated whether concepts of TRIZ and its derivatives ((A/U)SIT) are appropriate to provide support for the process of technology integration before the background of an industrial NCD/NPPD process (H3).In order to test this hypothesis a model was developed which allows the identification and resolution of problems which typically appear during the integration of a specific technology into a given application. The model incorporates two of the most important concepts of TRIZ, and is sought to facilitate creative problem solving attempts in both, mono- and multidisciplinary teams.The said model was tested during an industrial NCD study in the roller bearing industry. After the case study, the participating engineers were asked to compare the applied model and the associated technology integration process with existing approaches used in the company.The results of the experiment point to superior performance of the presented model in terms of knowledge transfer-related and idea quality-related criteria. However, required resources for process conduction and necessary effort for the learning of the approach were considered comparable to existing approaches.The present Ph.D. work contributes to the understanding of creative problem solving in interdisciplinary groups in general and related to technology integration in particular. Especially the comparison of more pragmatic intuitive methods with more hierarchical analytical approaches depending on disciplinary group composition provided relevant insight for R&D processes
Brichni, Manel. "Towards a continuous improvement cycle for knowledge capitalization : A case study at STMicroelectronics." Thesis, Université Grenoble Alpes (ComUE), 2015. http://www.theses.fr/2015GREAM026/document.
Full textAt STMicroelectronics, the Business Intelligence team is daily confronted to exploit data and information to create reports about manufacturing activities in order to supervise it. In such an industrial organization, products change regularly and data can quickly become obsolete. Consequently, over time, the number of created reports is highly growing, while knowledge about their creation is lost. This is shown in a qualitative and quantitative evaluation of the main part of the STMicroelectronics' knowledge system.As a result, problems related to knowledge obsolescence, duplication, non-centralization and proliferation continuously arise. Therefore, this work addresses the general following research question:How to ensure a continuous expert knowledge capitalization?To answer this question, a continuous improvement cycle for knowledge capitalization is proposed. Its objective is to effectively and continuously capitalize expert knowledge while targeting business needs and providing an evolving solution. It is based on a Business Intelligence for Business Intelligence system (BI4BI). Since knowledge is embedded not only in systems and tools, but also in human minds and practices, our proposed knowledge capitalization solution also involves people and organizations: it proposes to collect users' feedbacks and insights to integrate them in knowledge representation and in our BI4BI tool
Cassier, Jean-Laurent. "Argumentation et conception collaborative de produits industriels." Phd thesis, Grenoble INPG, 2010. http://tel.archives-ouvertes.fr/tel-00557483.
Full textGroux-Leclet, Dominique. "Une approche par plans et par modélisation du domaine appliquée à l'enseignement de la rhumatologie : le système ARIADE : Apprentissage de la Rhumatologie Intelligemment Assistée par orDinatEur." Compiègne, 1993. http://www.theses.fr/1993COMP666S.
Full textBrunel, Stéphane. "Étude des activités collaboratives de conception en tant que situation d'apprentissage : application à l'ingénierie des produits et à l'ingénierie didactique." Phd thesis, Université Sciences et Technologies - Bordeaux I, 2008. http://tel.archives-ouvertes.fr/tel-00429635.
Full textDonfack, Guefack Pierre Sidoine V. "Modélisation des signes dans les ontologies biomédicales pour l'aide au diagnostic." Thesis, Rennes 1, 2013. http://www.theses.fr/2013REN1B018/document.
Full textIntroduction: Making a reliable medical diagnosis requires the identification of the patient’s disease based on the observation of signs. Moreover, ontologies provide an adequate and efficient formalism for medical knowledge representation. However, classical ontologies do not allow representing knowledge associated with medical reasoning such as probabilistic, imprecise, or vague knowledge. Material and methods: In the current work, general knowledge representation methods are proposed. They aim at building ontologies fitting to medical diagnosis. They allow to represent: (a) imprecise or vague knowledge by discretizing concepts (definition of several distinct categories thanks to threshold values or by representing the various possible modalities), (b) probabilistic knowledge (sensitivity, specificity and prevalence) by reification of relations of arity greater than 2, (c) absent signs by relations and (d) medical reasoning and reasoning on the absent signs by SWRL rules. An abductive reasoning engine and a probabilistic reasoning engine were designed and implemented. The methods were evaluated by use of real patient records. Results: These methods were applied to three domains (the plasma cell diseases, the dental emergencies and traumatic knee injuries) for which the ontological models were developed. The average rate of correct diagnosis was 89.34 %. Discussion-Conclusion: In contrast with other methods proposed by Fenz and García-crespo, the proposed methods allow to have a unique model which can be used both for abductive and probabilistic reasoning. The use of such a system will require beforehand its integration in the hospital information system for the automatic exploitation of the electronic patient record. This integration might be made easier by the use of the ontology on which the system is based
Bonnat, Catherine. "Etayage de l'activité de conception expérimentale par un EIAH pour apprendre la notion de métabolisme cellulaire en terminale scientifique." Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAS017/document.
Full textThe thesis work involves a scaffold of the experimental design activity carried out by high school students in scientific activities using a TEL system (Technology Enhanced Learning).This type of activity promotes learning, but it is also a complex task that leads to difficulties identified in the literature. The situation highlights a specific cellular metabolism, the alcoholic fermentation, this topic being studied in high school biology classes. Students have to design an experimental procedure to highlight this metabolism.The first step of the thesis consisted in knowledge modelling for designing an experimental situation in biology. The framework used to model knowledge, is the Anthropological Theory of Didactics (ATD) and more precisely the praxeology model (Bosch & Chevallard, 1999). An epistemological analysis has been done in order to identify difficulties in this situation: difficulties related to knowledge and also to experimental procedure.A structured procedure was modelled into steps, actions and parameters, which takes into account difficulties identified a priori and implemented in a web environment named LabBook,.This TEL system offers fixed scaffolds in order to help students in an experimental design activity.The situation implemented in LabBook has been tested in three biology classes in high school, during two sets of experimentation. The analysis is based on the students’ productions and their answers to questionnaires (pre-test and post-test).The results analysis showed that the experimental design activity promotes learning and changes students’ conceptions. Regarding design experiment, the pre structuration helps students to produce relevant and communicable procedures.This reveals that students are able to use the pre-structured experimental procedure tool in LabBook.This is a requirement for students’ errors diagnosis in order to propose automatic personalised feedbacks. We make recommendations for such feedbacks based on the praxeology model developed in this thesis