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IHM Tables of Contents: 02030405060708091011121314

Proceedings of the 2003 Conference of the Association Francophone d'Interaction Homme-Machine

Fullname:Proceedings of the 15th International Conference of the Association Francophone d'Interaction Homme-Machine
Editors:Thomas Baudel
Location:Caen, France
Dates:2003-Nov-25 to 2003-Nov-28
Publisher:ACM
Standard No:ISBN 1-58113-803-2; ACM DL: Table of Contents hcibib: IHM03
Papers:51
Pages:298
Links:Association Francophone d'Interaction Homme-Machine
The missing link: integrating paper and electronic documents BIBAFull-Text 1-8
  Wendy E. Mackay
Despite the prevalence of computers and on-line documents, paper persists. As physical objects, paper documents are easy to use, flexible, portable and have proven extremely difficult to replace. Even though they all use computers, engineers still annotate large paper engineering drawings, video producers still sketch and rearrange paper storyboards, air traffic controllers still plan traffic flows with paper flight strips, and biologists still record experiments and organise multimedia data in paper notebooks.
   In this article, I argue that we should seriously reconsider the urge to replace all paper documents with on-line ones, accessible only with a mouse and keyboard and viewable only a screen. Instead, we should begin to think about "interactive paper": which maintains the ease-of-use of physical paper, while enabling us to benefit from the full spectrum of interactive computing.
Models for universal usability BIBAFull-Text 9-16
  Fabio Paternò
This paper discusses how model-based approaches can support designers and developers to address a number of challenges raised by universal usability, such as the possibility of obtaining user interfaces able to adapt to any device and usability evaluation tools able to analyse any users who can be located anywhere. The paper provides an overview concerning results that can be obtained in this area with links to activities carried out in current projects. Lastly, a research agenda for the field is proposed and discussed.
Aging and user disfunctionings: implications for information system design BIBAFull-Text 17-23
  Jean-Claude Sperandio
Researches in ergonomics are carried out on factors of work inducing a premature ageing or pathologies, with the purpose of designing or improving workplaces, devices and organisations less noxious for the health or more compatible with possible handicaps of operators. This paper concerns the seniors users of computerized devices.
Ergonomic criteria adapted to human virtual environment interaction BIBAFull-Text 24-31
  Cédric Bach; Dominique Scapin
This paper introduces a version of Ergonomic Criteria adapted to HVEIs (Human Virtual Environment Interactions) which have been tested for validity. An experiment based on an assignment task (Ergonomic Criteria to usability problems) has been conducted to ensure appropriate understanding of the different criteria. The results of this study identify criteria that are clearly understood and criteria that need further improvement.
Modéling and implementing adaptative pedagogical hyper documents BIBAFull-Text 32-39
  Sofiane Benadi; Patrick Prévot; Jean-Yves Ramel
Today, a large number of interactive systems are developed thanks to hypermedia documents particularly in the education field. Due to the lack of experience feedback, it is always necessary to carry out reflections on the architecture of these systems in order to efficiently manage the knowledge to be transmitted. We investigated a study on architectures of such systems during the design and the creation of a new environment that enables adaptive pedagogical hypermedia management. We propose a division of the system in three parts: the Support layer, the Structure layer and the Semantic layer. Then, transmitted information is structured and adapted according to user profiles. Our approach is based on XML technologies and allows the pedagogical document to be presented in a form adapted to the learner. Using an example, this paper presents the different structures that enable addition of the meta data required to construct these adaptive documents. Always starting from the same example, the processes involved during document generation and the web environment we should use during their consultation are also described.
Lessons learned from the implementation of a reflexive groupware system BIBAFull-Text 40-47
  Grégory Bourguin
Strongly influenced by Human Sciences, the CSCW research domain has fully integrated the need for malleability in groupware systems. However, even if we understand why groupware need malleability, it is still difficult to know how to achieve it. We have been working for a few years on the DARE project, a reflective groupware. We then defined the co-evolution principle. DARE has now ended. This paper presents some of the lessons that were derived from this work. These lessons have been used to create a new reflective groupware called CooLDA (Cooperative Layer supporting Distributed Activities) that should support co-evolution more successfully.
A theoretical framework to characterize multichannel interaction in electronic commerce BIBAFull-Text 48-55
  Vincent Chevrin; Alain Derycke; José Rouillard
This paper presents an initial study of multichannel interactions within the framework of the E-Marketing. A analysis and prediction theoretical framework, based on the one hand on concepts resulting from psycholinguistics, and the other hand on information theories, more managerial, is proposed. An initial synthesis in terms of index properties of the channels is given. Lastly, some multichannel scenarios and devices are described in detail.
A groupware environment for transient virtual organization building BIBAFull-Text 56-63
  Ludovic Collet; Xavier Le Pallec; Alain Derycke; Frédéric Hoogstoel
The Reciprocity project aims to provide an environment for inter-organisational collaborations. The main goal of this project, based on a peer-to-peer approach, is to not bother social mechanisms that are inherent in such organisations. The major contributions of this project concern the respect of social hierarchy, resource sharing mechanisms that are less restricted and a reliable reflect of contributions of each participant.
Comet: a new generation of widget for supporting user interface plasticity BIBAFull-Text 64-71
  Olfa Daâssi; Gaëlle Calvary; Joëlle Coutaz; Alexandre Demeure
Adaptation of User Interfaces (UI) to context of use is becoming a major issue in HCI. By context of use, we mean the (user, platform, environment) triplet. Plasticity refers to the ability of UIs to withstand variations of context of use while preserving usability. Based on a reference framework that provides designers with a powerful tool for reasoning about plasticity, this paper addresses plasticity at the level of interactors. Comets (COntext sensitive Multi-target widgETS) are a new kind of widget that support adaptation at any level of abstraction: concepts and tasks, abstract, concrete and final UIs. This paper proposes a model as well as run-time software mechanisms that support the design of comets as well as run-time adaptation. Run-time is ruled according to a set of strategies and politics.
A groupware environment for transient virtual organization building BIBAFull-Text 72-79
  Olivier Delotte; Bertrand David; René Chalon
In this paper we describe an environment and a process for the design and evolution of context-sensitive collaborative systems. Contextualisation and adaptation are the main characteristics of this environment. The initial design is based on scenarios, which are converted into a global behaviour model. This model is then mapped on the 3-level software architecture (application level, generic collaborative support, network infrastructure). The AMF-C architecture model is used for modelling the application level in order to obtain an adaptable collaborative system. This adaptation is based on a library of patterns and software components and by taking into account new scenarios which modify the behaviour model as well as the software architecture.
Plasticity of user interfaces: towards an evolution model based on conceptual graphs BIBAFull-Text 80-87
  Alexandre Demeure; Gaëlle Calvary
This paper deals with Plasticity of User Interfaces (UI). Plasticity refers to the ability of UIs to withstand variations of context of use while preserving usability. By context of use, we mean a (user, platform, environment) triplet. Adaptation is a three-step process involving recognition of the situation, computation of a reaction to cope with the situation, and execution of the reaction. This paper covers both computation and execution of the reaction. It proposes a graph of descriptions and an evolution model for respectively capitalizing UIs and specifying the adaptation to perform in case of change of context of use. These notions are based on conceptual graphs.
Semantic feedback in geographical information retrieval systems BIBAFull-Text 88-95
  Franck Dumoncel; Mohamed Ould Ahmed Limam; Mauro Gaio
Based on previous works on geographical information (GI) modeling and information retrieval, we report on the development of a human-system interface for the AnteServeur Geographique project. The AnteServeur project is a middleware system that implements a framework for retrieving geographical data of heterogeneous nature. After a brief overview of various existing frameworks for GI retrieval and a short description of the principles of the bimodal interface, this paper focuses on the spatial model underlying our approach and "semantic feedback" carried out.
Architecture of a dialog system with an assistant agent BIBAFull-Text 96-103
  Fabrício Enembreck; Jean-Paul Barthès
This paper describes a dialog system allowing a human user and a personal assistant agent to communicate through natural language. The Assistant uses explicit task representation and knowledge representation to achieve an intelligent dialog. The dialog architecture is independent from the knowledge or task representation and includes different models: dialog models, task models, user models and domain models. The paper describes how the dialog manager uses the models to conduct the dialog and how the approach is related to other approaches in the same domain. The system has been implemented in a collaborative environment in order to personalize services and to improve interaction.
Structured contextual forum: a study for e-learning BIBAFull-Text 104-111
  Sébastien George
All distance working or learning environments provide communication tools. However, these communication tools are unlinked to users' activities. This separation does not encourage users to discuss the activities they carry out and to question each other about the difficulties they experience. In a distance learning context, providing classical communication tools is not sufficient to create true interactions between learners and to encourage collective knowledge building. Our research work aims at providing each user with a contextual and partial view of a particular forum which contains discussions related to the activity being carried out by this user. The results of this work are a model of contextual forum and a computer tool based on this model that is called CONFOR (CONtextual FORum).
Modeling hypermedia documents for adaptative presentation BIBAFull-Text 112-117
  Halima Habieb-Mammar; Franck Tarpin-Bernard; Patrick Prevot
The aim of this paper is to describe a hypermedia document modelling method. This model enables presentation adaptation for users. A user model is described. The main components of this model, besides demographic and behavioural ones, are 25 cognitive indicators divided into 5 cognitive sectors: memory, attention, executive functions, language and visuo-spatial abilities. The adaptation process uses these two models to adapt the multimedia document to the user model.
First steps in the retro-engineering of a GUI toolkit in the B language BIBAFull-Text 118-125
  Francis Jambon
This paper provides a progress report on an initial approach of retro-engineering of a graphical toolbox using the B method. Nowadays, dependable systems which feature graphical user interfaces do not use Widgets libraries, safety of which was ensured. The use of formal methods (the B method in our study) is an interesting solution making it possible to guarantee some of the properties (safety and conformity) of these Widgets. We show that retro-engineering of classical Widgets (Button, Slider) or more elaborate ones (RangeSlider) is possible but error prone and reveals some badly controlled concepts.
Verbal assistance to visual search in complex visualizations BIBAFull-Text 126-133
  Suzanne Kieffer; Noëlle Carbonell
We present an exploratory experiment of the possible contribution of multimodal messages to facilitating visual search in complex scenes (e.g., visualizations of very large data sets). The main objective is to evaluate the actual contribution of verbal information to improving the efficiency (i.e., accuracy and speed) of the detection and selection (using the mouse) of visual targets. The evaluation focuses on the performances and subjective satisfaction of future users in three situations where the main free variable is the target's preliminary presentation: (i) display of the isolated target, (ii) verbal designation + information on its location in the scene, and (iii) multimodal (visual + oral) presentation. Multimodal target presentations improved subjects' performances significantly; they also received the highest subjective ratings.
Multiple pointers: a study and an implementation BIBAFull-Text 134-141
  Eric Lecolinet
This paper describes the main cases of multiple pointer interaction and proposes a new notation (named UDP/C) for classifying and comparing these systems. A technical solution that makes use of two complementary tools is presented in the second part of the paper. This implementation can support most cases of multiple pointer interaction. It is currently based on the X-Window windowing system and the Ubit toolkit.
Perception and meaning: some contribution to web-based user interfaces ergonomics BIBAFull-Text 142-149
  Laure Léger; Thierry Baccino; Charles Tijus
This paper summarizes studies on the effect of visual and semantic object properties on target detection. The results show that the search is oriented by the visual and semantic organization of the visual scene. These results show that visual discriminability, although it doest not always inhibit semantic difficulties, can be used to improve visual search in the design of web interfaces.
Formal description of a multimodal interaction technique in an immersive virtual reality application BIBAFull-Text 150-157
  Amélie Schyn; David Navarre; Philippe Palanque; Luciana Porcher Nedel
Even if the majority of research in the field of Human-Computer Interaction seems to focus on using advanced interaction techniques, such as multimodality or virtual reality, critical systems show that usability of such techniques is only one of the main problems a designer must face with reliability and efficiency. This paper presents, through the study of an example from the field of virtual reality, extensions to previous works in the field of formal description techniques for interactive systems, by adding elements to the ICO formalism, allowing the modelling of multimodal applications.
Helping in collaborative activity regulation: modeling regulation scenarii BIBAFull-Text 158-165
  Stéphane Talbot; Philippe Pernelle
The regulation was introduced into groupware in order to improve the actors collaboration. In our context, the regulation means the ability given to a group or a person that manages a group. This paper describes an approach of setting up about this regulation thanks to the concept of scenario. This last makes possible to describe the practical application common rules, which can be laid down within a group. These scenarios make possible to modify some actions of the actors, it becomes thus actions scenarized. For that, we will present a model of scenario and representation language.
From the workstation to the mobile phone: multi-target interface design BIBAFull-Text 166-173
  David Thevenin
Tools for multitarget generation such as ARTStudio lack flexibility for generation. In this paper we present a dynamic adaptation to achieve more interactive edition and generation. We present requirements for adaptation and a preliminary implementation based on a numerical constraints solver.
Speech-based interaction as seen by blind users: from services evaluation to the evaluation of an interaction model BIBAFull-Text 174-181
  Gérard Uzan; Antony Teixeira
In order to evaluate two conceptually different voice mail systems, we developed a method of analysis relying on the user's memorisation of information rather than on his or her performances and understanding of the service's functionalities. After having analysed the interfaces and according to the rules of the "inclusive design" approach, we confronted blind participants with two interfaces (one already existing interface, the other one based on a new model of interactions). The freedom of navigation and action given to the participants in the voice mail systems, as well as the natural character of the messages created to test the interface, gave this experiment a high degree of ecological validity. The experimental design's goal was to test the effects of the distribution of information within or between messages. This design allowed the uncovering of behaviours aiming at dampening the fugacity and irreversibility of voice messages. The importance of functionalities dealing with temporal constraints, information retention as well as the modalities of interactions with the systems has therefore been proved.
Simulation in work analysis for the design and evaluation of critical situations help systems: the case of flood management BIBAFull-Text 182-189
  Sandrine Cazabat; Jean-Luc Soubie
Work analysis is the main approach in ergonomics for needs analysis, specification and validation of work aid tools. Unfortunately, some working situations cannot be studied by means of classical work analysis methods. In particular, when operators are faced with critical states in the world, such as forest fires or flood management. The characteristics of these situations are their low frequency of occurrence and the high level of stress for the people involved. We propose to adapt work analysis to obtain results without direct observation of operators in real situation, and to build scenarios and carry out simulations for the validation stage of the tool.
User interface prototyping as seen from three viewpoints in the context of a supervision system BIBAFull-Text 190-197
  Mouldi Sagar
This study is part of the project to re-design the control room in the largest Belgian cement factory (REBIRTH Project). It aims to set forth a certain number of results allowing evaluation of the potential of the ergonomic approach. We have proposed in this project to develop a collaboration with the local engineering service, a subcontractor in data processing and the future providers. The result of this study constitutes an ergonomic demonstrator dealing with the "furnace # 3" case study, which illustrates our methodology of ergonomic intervention. This study should be followed up by the designer to carry out the various stages of re-designing the new control room.
   This ergonomic intervention was performed via an empirical approach centred on user activity. Several methods were developed in this approach. In this communication, we deal more particularly with HCI in prototyping according with three points of view.
SUIDT: a user interface builder for secure user interfaces BIBAFull-Text 198-201
  Mickaël Baron; Patrick Girard
We present in this paper a new computer-aided design for user interfaces tool that leans on several well-defined formalisms. This development tool for end-users is called SUIDT (Safe User Interface Design Tool). It uses visual programming techniques to build every application model and allows building the final application with respect to all models.
INPH, a navigation interface for motor-disabled persons BIBAFull-Text 202-205
  Vincent Dieudonné; Philippe Mahieu; Claude Machgeels
INPH is a software layer, running on the end-user's computer, making easier the access to the Web for motor impaired persons. Browsing means a particularly high usage of both the mouse and the keyboard. There exist many types of adapted physical interfaces replacing the mouse, making use of the various abilities of the motor impaired persons. INPH is compatible with most of them.
   Its design was based on many years of work in the field, enriched by an inquiry conducted through Internet. Its user interface is a palette floating over the window managed by the browser. The palette is made of a matrix of chosen action buttons, with all the functionalities needed in most situations. INPH is freely downloadable from our Website. It has been used in the field for one year, mainly in Belgium and in France. Its formal evaluation will begin during autumn 2003.
Matrix view of graphs and direct manipulation of cluster hierarchies BIBAFull-Text 206-207
  Mohammad Ghoniem; Jean-Daniel Fekete
This paper describes VisAdj, a tool for visualizing graphs as adjacency matrices. Although unfamiliar, this technique displays each link without occlusion and lends itself well to direct manipulation. Row and column permutations are a necessary step towards revealing the underlying structure of a graph. Since individual manipulation of vertices would take too much time in large graphs, VisAdj makes it possible to compute cluster hierarchies and manipulate them interactively. Aggregated views of the graphs can be accessed through these clusters and provide better understanding of their structure.
Towards contextual visualization of collaborative design BIBAFull-Text 208-211
  Gilles Halin; Damien Hanser
A design project is a professional and social activity inside a group of actors which belongs to the same or a different organisation. In this context, the decision-making power is distributed inside the group. This a network model of actors instead of a hierarchical model as we find in classical workflow tools. This organisation has to be represented in the project management tool to give each user the realistic vision of the project organisation. We propose to use a hyperdocument representation and a graphical network visualisation of the project organisation and evolution. The project visualisation is then a graph of information displaying the context of the cooperation.
IntrosPAC: a tool to teach and understand PAC-Amodeus BIBAFull-Text 212-215
  Christophe Lachenal; Joëlle Coutaz
This article presents IntrosPAC, a software tool based on aspect oriented programming, which, from a PAC-Amodeus compliant source code, generates a graphic representation of the corresponding conceptual architecture. The graphic animation supports developers for understanding the structure of their code as well as for detecting violation of the principles of the reference architecture model. IntrosPAC has been successful in teaching software architecture modeling for interactive systems and in improving students understanding.
A unifying approach for the generation of user interface in adaptative hypermedia systems BIBAFull-Text 216-219
  Mathieu Barcikowski; Jean-Charles Marty; Laurence Vignollet
In the context of the "cartable electronique" project, we have developed an adaptive hypermedia, providing pupils with information on cultural events. We propose a general approach allowing the information to be adapted to a given user in a particular context. This adaptation is performed thanks to user preferences but also by exploiting the context of use of the system (device, location of the user). The generation of the adapted user interface can be seen as the generation of an adaptive document where the result is obtained through the combination of the adequate fragments of information and their display. Our approach is based on constraints generated from user preferences and from the context (e.g. depending on the device, some fragments are disabled). An architecture is also presented in which we explain how we adapt the information (selection of what to present contents and decision on how to present them on display).
Usability of speech based and multimodal interaction in a learning micro-world BIBAFull-Text 220-223
  Tristan Blanc-Brude; Colette Laborde; Mireille Bétrancourt
A study was conducted to determine the benefits of adding voice input to the graphical user interface (GUI) of a geometry learning software (Cabri-geometry II). In particular, we aimed to test whether or not voice input has an advantage over mouse input, regarding speed and user's preference. An experiment was conducted on 8 students aged between 15 and 16 who interacted with both the standard interface (mouse/keyboard) of the software and a multimodal interface in which speech recognition was simulated by the "Wizard of Oz" technique. The results show that voice input is significantly faster than mouse/keyboard input for command completion and that students prefer using voice commands rather than mouse/keyboard or multimodal commands.
From human movement analysis to interface design: applications to writing and gesture based user interface BIBAFull-Text 224-227
  Marcellin Buisson; Isabelle Sallagoïty; Sylvie Athènes; Christophe Mertz
A number of authors have studied the possibility of using handwriting or gesture as inputs. In most cases, the focus was either on building robust algorithms for recognition or identifying a set of assumed "natural" movements. Few authors have taken the analysis of actual movements as a starting point to build a set of precise and stable movements. This paper presents some arguments in favor of using results from human movement science to improve the elaboration of robust interfaces.
Sharing daily-life images with videoProbe BIBAFull-Text 228-231
  Stéphane Conversy; Nicolas Roussel; Heiko Hansen; Helen Evans; Michel Beaudouin-Lafon; Wendy Mackay
videoProbe is a device that takes pictures of everyday family life and shares them among multiple households. By providing family members with a new means of lightweight and informal communication, videoProbe allows unusual picture sharing and is likely to modify interactions within families. From a research perspective, videoProbe is an instance of a new class of device built to inspire ideas for the design of new communication technologies and to gather data about life in family.
Augmented paper and Anoto stylus BIBAFull-Text 232-235
  Pascal Costa-Cunha; Wendy Mackay
As part of the design of an augmented laboratory notebook, we are creating a system that combines the advantages of both paper and the computer. We have implemented several prototypes; here we describe one that uses the Anoto pen allowing for a completely autonomous augmented paper notebook. We explain its two basic interaction techniques: triggering functions and selecting areas to which a function applies.
Learn what I do BIBAFull-Text 236-239
  Fabrice Depaulis; Laurent Guittet; Christophe Martin
In the past twenty years, many works have dealt with programming by demonstration. They have tried to make an end-user interactively program repetitive task, spying his/her actions while he/she is performing it. Though the approach seems relevant, no commercial software uses it. The main reason is that it is very difficult for a software designer to integrate Programming by Example concepts: recording, generalizing and replaying user interactions is far from easy. However, another approach consists in using an external system, which works on the user graphical interactions, and which is able to spy any application. Unfortunately, it is very difficult for such a system to successfully generalise user actions, because it does not understand their meaning, with respect to the functional core. This paper deals with a new method that consists in making the user fill the previous semantic gap, describing his/her interaction and the interface state meanings.
Improving involvment in a groupware system BIBAFull-Text 240-243
  Guillaume Durand; Laurence Vignollet
This paper deals with the problem of the engagement of individuals in a mediatized joint activity. After introducing this problem and the social aspects that it raises, we are concerned with the solutions brought to this problem in online communities. Lastly, we describe our approach based on the intervention of a software agent, the mediator, resulting from an organizational model: the participation model.
Multimodal user interfaces for a travel assistant BIBAFull-Text 244-247
  Alain Goyé; Eric Lecolinet; Shiuan-Sung Lin; Gérard Chollet; Catherine Pelachaud; Xiaoqing Ding; Yang Ni
As a part of a project to develop a personal assistant for travellers, we have studied three types of multimodal interfaces for a PDA: 1) a combination of Control menus and vocal inputs to control zoomable user interfaces to graphical or textual databases, 2) refinement of pictures captured by the integrated camera, based on correlating a series of pictures, in order to enhance character recognition, and 3) embodied conversational agents able to communicate via synchronized speech and culture dependent nonverbal behaviors (face, gaze and gesture). We describe in this paper these three modalities and their integration in the main application.
Programming by example and computer-aided teaching of algorithmics: the MELBA project BIBAFull-Text 248-251
  Nicolas Guibert; Patrick Girard
Usability issues in programming languages and associated environments are the topic of multiple studies, which led to the creation of many innovating "programming systems" where the user is the center of the design process, allowing non-programmers to create programs without understanding the underlaying concepts. In this paper, we describe the MELBA environment (for Metaphor based Environment to Learn how to Build Algorithms). Its purpose is to use advanced visual and example-based programming techniques to support Computer Science (specifically Algorithmic) learning in higher education, by using concrete examples and metaphors.
Using visual cues to help text entry on PDAs BIBAFull-Text 252-255
  Laurent Magnien; Jean-Léon Bouraoui; Frédéric Vella
Text input enhancement is well suited as soon as degraded conditions are encountered, whether due to handicap or use while moving. We propose a novel text input assistance, based on the AZERTY soft keyboard, whose keys are selected one by one thanks to a pointing device. The keys likely to be selected are predicted and contrasted in order to help users visually. We postulate that this kind of help facilitates and accelerates input for novice users under degraded conditions. We have computed the theoretical reduction in time, thanks to the Hick-Hyman law: the theoretical gain, for a novice, is 50%). We plan to further improve help robustness and to carry out empirical validations of the prototype.
From vocal to multimodal: improving home phone services interaction? BIBAFull-Text 256-259
  Marc Mersiol
This paper presents a study conducted on fifteen users. The latter carry out scenarios using three vocal services. Each service is used in its commercial version and in a version providing added textual information. This information is partially redundant with audio information delivered by the vocal services. The aim of this study is to check to what extent this added information modifies use of these services. The main results show that displaying text is favourably accepted by the users, but does not modify the completion of the scenarios.
AgenPerso: a user interface based on personal software agents for public transportation users BIBAFull-Text 260-263
  C. Petit-Rozé; C. Kolski; E. Grislin-Le Strugeon; A. Anli; M. Abed; G. Uster
This paper presents our research into intelligent agents-based Human-Computer interactions. Our goal is to design personalized information systems. For that, the aim of their intelligent interfaces is to understand the users needs, to identify his/her preferences and, to satisfy his/her expectations.
   We then propose to design the interfaces with intelligent agents. This research is applied to traveler information design in transportation systems (Predit Agen- Perso project).
Information retrieval: from the user to the context BIBAFull-Text 264-267
  Astrid Poulon; Christophe Vaudry
Information Seeking (IS) is context dependent. this paper introduces a methodological approach applied to the study of an IS system in French public archives. In this approach, we analyze the different contexts of the IS situation for a user. This analysis allows us to formalize typical IS situations. We suggest some working tracks to integrate these results into the design of an IS system.
Using distance as an interface in a video communication system BIBAFull-Text 268-271
  Nicolas Roussel; Helen Evans; Heiko Hansen
Physical proximity between people is a language for non-verbal communication that we all employ everyday, although we are barely aware of it. Yet, existing systems for video-mediated communication fail to fully take it into account. In this paper, we present MirrorSpace, a new video communication system that uses proximity as an interface to provide smooth transitions from general visual awareness to very close and intimate forms of communication.
Using interaction patterns for the adaptation of multi target user interfaces BIBAFull-Text 272-275
  Kinan Samaan; Franck Tarpin-Bernard
Trying to define multitarget HCI for interactive applications, this paper describes a method for the adaptation of the task model and the interaction model to the specific characteristics of the target support. In our Model-Based Approache, we integrated a library of the task patterns and interaction patterns. For the description of the interaction model of the application, we use the AMF (Agent Multi-facets) model, a multi-agent architecture that insures the link between the tasks model and the functional core of the application.
An adaptative visual device to assist patients affected by visual scotoma BIBAFull-Text 276-279
  Anne-Catherine Scherlen; Vincent Gautier
The presence of a central visual scotoma disrupts recognition and any visual identification. The current visual apparatus (lens) obliges the patient to develop a new referential visual to investigate differently the visual information but regrettably they are not very successful. In this project, we elaborated an innovative adaptive optical device. Adaptive, because it is no longer the patient who has to adapt himself to his handicap but the device which is going to adapt its environment to his visual needs in real time. We suggest synchronizing eye movement and availability of the visual information by unmasking the visual information present under the scotoma. Our result shows that the subject is disrupted during the reading with the presence of the scotoma when more than 6 letters are masked. Beyond, we improve significantly the speed of reading according to the unmasking principle.
   A new proposal for the unmasking of information by respecting the cognitive and linguistic cues of the text is the object of the continuity of this project.
Studying the multimodality/personalization couple in interactive and evolving environments: dynamic contextual adaptation of users tasks BIBAFull-Text 280-282
  Vincent Chevrin
Within the framework of my thesis within the Trigone Laboratory and in collaboration with the Cite Numerique, a subsidiary of the International group 3 Suisses, we have studied multichannel interactions in E-Commerce. This paper will thus describe the progression of our work as well as the work plan that we follow. It will also give a progress report on the results expected at the end of the first year of this thesis.
A user-centered groupware system: the reciprocity project BIBAFull-Text 283-286
  Ludovic Collet
The goal of this project is to design generic Computer Supported collaborative work environment for supporting collective human activities. This project concerns inter-organisational exchanges and E-learning. It will place the user in the center of the activity, allow the user to participate in activity evolution and promote user involvement. This Meta groupware is built on the Web potential, XML and peer-to-peer mechanisms.
Coopéera: analysis of a collaborative platform usage BIBAFull-Text 287-290
  Jean-Charles Hautecouverture
Our studies treat about computer science environment and offer to users, in this case children of the primary school, a method of particular cooperation in order to realise common projects. Our mission in this project is to report how children use the tool. Our interest is particularly focused on the factors that facilitate or block the process of the appropriation of this tool. So we analyse the interactions between the children. These interactions are mediated by using a platform. We argue that the properties of the artefact take an essential role in the appropriation of the tool, but the historic cultural inscription is also a deciding factor in the process.
Web site design: a study on the discriminability of visual and semantic properties BIBAFull-Text 291-294
  Laure Léger
This paper describes semantic and visual discriminability effects in target detection. Web sites are very different in their use of a diversity of semantic and visual features. We studied how these features allow the user to get what he really wants. Our experiments show not only that visual discriminability plays a major role in target detection, but also how semantic relatedness between the target and the distractors, as well as target typicality affect detection and response time. These results are discussed in terms of cognitive principles underlying search strategy.
Design method for a decision-support system centered on the decider and using component based programming BIBAFull-Text 295-298
  Sophie Lepreux
The first Decision Support Systems (DSS) appeared about thirty years ago. This type of system aims at supporting the user in resolution of his/her problem and allowing him/her to make a decision. There are numerous systems called DSS; we identified two types: (1) Systems which solve problems to support user in decision-making and (2) systems which support users for evaluation of solutions. In our opinion, unlike many approaches which do not really take the user into account, DSS must not decide on replacement of the user but must allow him/her to measure the consequences of his/her choices to make decisions adapted to his/her needs. Our research aims at the DSS design model. This model will be applied to DSS design in the railway infrastructure investment domain.