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Page de résumé pour ULgetd-10272011-210837

Auteur : Elsen, Catherine
E-mail de l'auteur : Catherine.Elsen@ulg.ac.be
URN : ULgetd-10272011-210837
Langue : Français/French
Titre : La médiation par les objets en design industriel, Perspectives pour l'ingénierie de conception/The objects' mediation in industrial design, Prospects for design engineering
Intitulé du diplôme : Doctorat en sciences de l'ingénieur
Département : FSA - Département ArGEnCo
Jury :
Nom : Titre :
Blavier, Adelaïde Membre du jury/Committee Member
Darses, Françoise Membre du jury/Committee Member
Kubicki, Sylvain Membre du jury/Committee Member
Lieberman, Henry Membre du jury/Committee Member
Teller, Jacques Membre du jury/Committee Member
Duysinx, Pierre Président du jury/Committee Chair
Leclercq, Pierre Promoteur/Director
Mots-clés :
  • CAD tools/outils CAO
  • sketch/esquisse
  • 3D representations/représentations 3D
  • mediating objects/objets médiateurs
  • design ergonomics/ergonomie de la conception
  • design engineering/ingénierie de la conception
  • design process/processus de conception
  • design support tool/outil de soutien à la conception
  • SBIM
  • industrial design/design industriel
  • draughtsman/dessinateur
  • designer
  • preliminary design/conception préliminaire
Date de soutenance : 2011-12-14
Type d'accès : Public/Internet
Résumé :

The preliminary ideation phase, determining more than 70 % of a project’s total costs, is a crucial part of the design process. It usually gathers several actors around the innovative solving process of a complex problem : it merges their complementary expertise, the use of mediating objects as well as a mysterious part of creativity in order to reach a solution if not innovative, at least satisfactory.

With the introduction of always more powerful Computer Aided Design tools, industrial design sees its every-day practices drastically evolving : these software still not support designers during their preliminary design phases and free-hand sketches, on the other hand, encounter increasing difficulties to meet today time-to-market pressures.

This thesis analyzes free-hand sketches’ and CAD tools’ respective and complementary strengths as supports to preliminary design phases. Advanced design engineering concepts, nurturing the study of the particular articulation existing between both mediating objects, are associated with dedicated Human Factors methodologies for the analysis of every-day professional practices. The research project draws its main qualitative and quantitative results from three field studies and two experimentations, bringing together more than forty professional designers and three design companies.

Its multi-disciplinary approach leads to models and recommendations that directly nurture the definition of a new design support system. The specifications tend to respect, augment or, on the contrary, reject some aspects of these mediating objects and aim at supporting a design process always in respect with designers’ constraints and real needs.

Beyond the concepts of our support system, we discuss some results that are of interest for communities of design engineering and human-computer interaction. Among these results are :

- the extension of the preliminary design phase’s boarders ;

- the non-dichotomous approach of rough and detailed mediating objects ;

- the coexistence of two design moves : in addition to Schön’s «see-transform-see» theory, the externalization of a strong mental image or a strong pre-inventive form explains the early uses of CAD tools ;

- the study of tool’s uses and misuses and graphic and semantic contents of external representations all along the design process, reintroduced in a simplified four-steps model ;

- the study of shifts occurring between 2D and 3D representations and their implications for the system’s automatization ;

- and, at the strokes’ scale, the study of the exploitable key-features and the strokes’ cycles and their implications for the temporality of assistance.

The thesis also discusses the added-value of its theoretical and methodological background for the materialization of a design-engineering community that articulates designer, mediating objects, design process and end-users in a coherent system, sound basis for the specification of adapted and adopted design support systems.

Autre version :
Fichiers :
Nom du fichier Taille Temps de chargement évalué (HH:MI:SS)
Modem 56K ADSL
[Public/Internet] 01_These_C.ELSEN_chap_1_2.pdf 8.92 Mb 00:21:14 00:00:47
[Public/Internet] 02_These_C.ELSEN_chap_3.pdf 6.93 Mb 00:16:30 00:00:36
[Public/Internet] 03_These_C.ELSEN_chap_4_5_6_7.pdf 15.87 Mb 00:37:47 00:01:24

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