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ErgoIA Tables of Contents: 1014

Proceedings of 2010 Ergonomie et Informatique Avancée 2010-06-30

Fullname:Proceedings of Ergonomie et Informatique Avancée Conference
Note:Innovation, Interaction, Qualité de vie
Editors:Gaëe Calvary; Marion Wolff
Location:Biarritz, France
Dates:2010-Oct-12 to 2010-Oct-15
Standard No:ISBN: 1-4503-0273-4, 978-1-4503-0273-9; ACM DL: Table of Contents hcibib: ErgoIA10
Links:Conference Home Page
  1. Innovation technologique et qualité de vie (Technological Innovation and Quality of Life)
  2. Emotion et innovation technologique (Emotion and Technological Innovation)
  3. Conception, interaction, utilisabilité (Design, Interaction, Usability)
  4. Ré-organisation, utilisabilité, systèmes innovants (Reorganization, Usability, Innovative Systems)
  5. Evaluation, apprentissage, utilisabilité et innovation (Evaluation, Learning, Usability, and Innovation)
  6. Transformation du travail, évaluation et nouvelles technologies (Transforming Work, Evaluation and New Technology)
  7. Facteurs humains, transformation au travail, sécurité (Human Factors, Transforming Work, Security)
  8. Evaluation, méthodes, utilisateurs (Evaluation, Methods, Users)

Innovation technologique et qualité de vie (Technological Innovation and Quality of Life)

Recommandations ergonomiques pour la conception de systèmes d'assistance cognitive dans les habitats intelligents BIBAKFull-Text 3-10
  Audrey Serna; Hélène Pigot; Jérémy Bauchet; Sylvain Giroux; Vincent Rialle; Dany L-Desrochers; Mounir Mokhtari
Cognitive assistance systems are aimed to support people loosing their autonomy while completing activities of daily living (ADL). The range of activities to support, the dissemination of interactive devices in the environment and the variability of users' cognitive capacities raise real challenges when designing assistance in such systems. This paper addresses the assistance issues and presents guidelines for assistive systems design. Especially, based on an experiment of the assistance provided while completing ADL, we suggest a principle of scaled assistance. The principle was applied to Archipel, a cognitive orthesis. This application and the results analysis of a 12 subject experiment led to the evaluation and the improvement of some ergonomic guidelines about ambient assisted living.
Keywords: ambient assisted living, assistive system design, smart homes, usability
Etude comparative des effets du caractère social des conduites sur l'acceptabilité des services de maintien à domicile chez les personnes âgées BIBAKFull-Text 11-18
  Juliette Reerink-Boulanger; Alain Somat; Florence Terrade; Eric Jamet; Jacques Juhel
This paper examines usage acceptance of "aging in place" services dedicated to elderly people. The aim of this study is to investigate causal link between behaviour prediction and service intention to use. Besides direct effects of utility and usability on behaviour intention, we expected that prescriptive behaviour would be best predict by social determinants rather than other behaviours. We tested our hypothesis with 157 elderly people (M: 75, 1 years old; SD: 6, 5). Using Partial Least Square path modelling approach (SmartPLS software), our findings tend to demonstrate on the one hand that utility and usability have direct link with behaviour intention. On the other hand, subjective norms and attitudes influence alternately intention when service behaviour imply prescription.
Keywords: ICT service evaluation, acceptance, aging in place, intention prediction
Système de saisie de texte visant à réduire l'effort des utilisateurs à handicap moteur BIBAKFull-Text 19-26
  Maxime Baas; Yohan Guerrier; Christophe Kolski; Franck Poirier
The K-Thot virtual keyboard system presented in this paper aims to decrease the effort (especially movements) needed to make a text input and is intended for users who have difficulty entering data on a physical keyboard. As part of this article, we present a virtual keyboard typing to replace a physical keyboard. K-Thot is composed with ten keys, each containing four characters, one by cardinal point. Entering a character is done by selecting the key containing it and making a cursor leave on the side where the target character is. Four devices will be proposed, The first one will use the classical AZERTY layout, the second one will use an alphabetical order, the third one will be organized (provision created by an algorithm) and the last one will be a dynamic layout (once a letter has been validated, the keyboard rearranges the letters on the keys to present first those with the highest chance of being captured later, thanks to statistics provided by the N-grams). After an analysis of similar systems, K-Thot is explained in detail. Early results from preliminary experiments are provided and discussed.
Keywords: handicap, human-machine interaction, text entry

Emotion et innovation technologique (Emotion and Technological Innovation)

Introduction d'un compagnon dans un logiciel éducatif en classe BIBAKFull-Text 29-36
  Fabien Denise; Catherine Cléder; Sylvie Girard; Isabelle Audras
During software deployment in schools, we observed a lot of solicitations of teacher by children. The major goal of such solicitations was for children to ask for navigation help. The type of questions and associated answers vary according to the child and the evaluation of learning situation. This article will discuss the benefits in terms of usability of educational software that include an intelligent and emotional companion as support navigation help for 6 years old children. Building on the results of experiments of Iroplan (a computer assisted learning system to help in the apprenticeship of reading), we analyze the interactions induced by the three entities: Teacher -- Computer -- Learner. Then, we'll overview a state of art on the use of companions in educational software. Third, we present Tago -- the companion created for Iroplan -- under its HCI and AI aspects. The version of Iroplan with Tago has been the subject of a usability test on 26 children whose first result will be exposed in the last part, along with their adequation in answering the interaction issues aforementioned.
Keywords: AI, HCI, affective computing, embodied pedagogical agent, learning, usability
Emotional facial expression interface: effects of displayed facial designs BIBAKFull-Text 37-43
  Damien Dupré; Michel Dubois; Nadine Mandran; Anna Tcherkassof
In supporting the visual-mediated emotional recognition, little research has centred on analysing the effect of presenting different combinatorial facial designs. Moreover, in the theoretical field of emotions, research on the recognition of emotional facial expressions (EFE) is mainly based on static and posed databases tested in unnatural contexts (explicit recognition task of an emotion).
   Our research has constructed and validated a database, DynEmo, with dynamic and spontaneous emotional facial expressions. So different facial interface designs (whole face, zoomed face, eyes + mouth, whole face + mouth, whole face + eyes, etc., n = 11) are experimentally compared to find their impact in terms of emotional recognition.
   The results show the facial interface design relevance in terms of emotional recognition. The application of this work is transferable to facial interfaces useful for video-mediated interaction.
Keywords: emotion, emotional recognition, facial expression, facial interface, interaction, interface design
BCI et IHM: premiers retours d'expériences BIBAKFull-Text 44-51
  Jean-Claude Tarby; José Rouillard
This article describes our first experiments in BCI (Brain Computer Interface) and HCI (Human Computer Interaction). Through three case studies on two different BCI headsets (NIA and EPOC), we show the pro and cons of these devices about their programming and their uses in HCI.
Keywords: BCI, EPOC, HCI, NIA, brain-computer interface
Médias et activités: courses poursuites cinématographiques et conduite automobile BIBAKFull-Text 52-58
  Marie A. Dupuy; Nicolas Casiez; Stéphane Rusinek; Sylvie Leleu-Merviel; Janick Naveteur
Media may exert a major influence on behaviours with others or with machines. In the car driving framework, cinematographic car chases have their followers. This study investigates the links between cinematographic car chases appreciation, the subsequent reactions and the driving style of the viewers. Twenty-four young drivers were rigorously selected. They were either cinematographic car chases followers or not (A+/A-). They had to watch short sequences including or not a car chase. Emotional ratings of car chases scenes are significantly different between groups. Moreover, electrodermal reactivity is higher for the A+ group in the car chase condition than in the neutral one. Whereas no difference were observed between groups concerning the driving experience, the annual mileage and the number of reported accidents, car chases followers reported better driving skills than non-followers. Several others relations had been highlighted, emphasising the complex tangle between reality and fiction.
Keywords: car chases, cinema, control, driving, emotions, young drivers
eMotion: un outil pour personnaliser la reconnaissance d'émotions BIBAKFull-Text 59-66
  Alexis Clay; Nadine Couture; Laurence Nigay
A subject's emotional expression is of course influenced by his personality, but several other factors can play a role. His position, the constraints he undergoes, or the setting of his working space can all deeply impact emotional expression through movement. When performing an automatic emotion recognition, an evaluator must be able to set up some parameters for the recognition so as to adapt to the evaluation conditions. Current recognition system do not allow for such adaptability. In this paper we present the eMotion software for movement-based emotion recognition. eMotion's software architecture allows easy integration of graphical widgets for parameterising emotional features extraction to suit the task at hand.
Keywords: affective computing, emotion, emotion recognition, evaluation, movement
Etude du comportement et des émotions dans un contexte de multisollicitations: approche exploratoire avec la Plateforme d'Evaluation, de prototypage et de teSts d'usageS (PEPSS) BIBAKFull-Text 67-74
  Nadine Couture; Marion Wolff; Régis Mollard; Laurent Todeschini
This exploratory study presents the results of an evaluation of human behavior obtained through a first use of the platform PEPSS (Prototyping platform for evaluating and use tests). During tests, subjects were confronted with a work situation characterized by multisollicitations induced by different distractors while performing a monitoring task. Using different tools, we have collected the performance, their emotional reactions and the subjective feeling. A multivariate analysis was used to study the behavior of subjects facing the multisollicitations. These first results open new opportunities for the analysis of work situations and evaluation of innovative products as the Platform PEPSS is reconfigurable and adaptable according to new needs.
Keywords: emotion, evaluation, interactive behavior, multisollicitations, use test

Conception, interaction, utilisabilité (Design, Interaction, Usability)

Penser "plasticité" peut améliorer la qualité des interfaces homme-machine: une étude de cas BIBAKFull-Text 77-84
  Audrey Serna; Gaëlle Calvary; Dominique L. Scapin
In Human-Computer Interaction, plasticity refers to the capacity of User Interfaces (UI) to adapt to the context of use (<user, platform, environment>) while preserving user-centered properties. Until now, plasticity was the scope of various studies. The adaptation from a context of use to another was studied in order to satisfy the end-user's requirements. This paper changes the focus: plasticity in itself is not the scope anymore; it is viewed as a way for designers to improve UI quality. The iterative design process is detailed for a case study where all design decisions have been recorded in terms of their influence on UI ergonomic quality. The case study deals with e-government procedures. The return of experience shows that paying attention to plasticity for a small screen platform results in improvements on the large screen platform version due to the reexamination of its initial design.
Keywords: design, plasticity, quality, user interface
Une approche sémiotique du contexte pour les systèmes pervasifs BIBAKFull-Text 85-92
  Daniel Galarreta
In this paper we examine the issue of the context for pervasive systems. For this purpose we adopt a semiotic approach. After a presentation of the theoretical framework, we try to show that multimodality and viewpoints can play a key role in understanding the context. We present examples of multimodal situations which lead us to recommend to give up or at least limit a too objectivist conception of context in the designing of pervasive systems.
Keywords: complex systems, context, context-aware computing, organisational semiotics, pervasive systems, systemics, viewpoints
Prise en compte de l'utilisateur dans le processus de conception d'une application d'édition de modèles de tâches BIBAKFull-Text 93-99
  Sybille Caffiau; Patrick Girard; Dominique L. Scapin; Laurent Guittet
Interactive application design iterates on: needs analysis (human and technical), specification, implementation and validation. In user-centred design, the specifications of use may be expressed by task models. From these models and scenarios, some methods allow to design interactive applications. However, the activity description is not always available (e.g., not provided by previous designers) or not usable. For instance, task models corresponding to an editing activity are composed of tasks that are all (or nearly all) accessible at any time. From such a task model, defining the application structure (component position, control activation) is a difficult task. In order to include users in the design process for this type of activity, designers choose other ergonomics methods such as user testing. This paper presents how an evaluation of usage for an editor of task models (K-MAD) may be used in order to modify the application interface. A study of the pertinence of the modifications (presented in the second part) shows that they imply to decrease the time to edit.
Keywords: evaluation, task models, user-centred design
Multi-actor systems and its organizational form: planning and communication of dispatchers and passengers in the Netherlands Railways (NS) BIBAKFull-Text 100-105
  Niels R. Faber; René J. Jorna
In innovating its planning processes, passenger involvement in dispatching is one of the directions the Netherlands Railways is exploring. Multi-agent systems (MAS) provide a way to study the organizational aspects of the dispatching task that aims to bridge functional differences between passengers and dispatchers. In this study, besides the technical, especially the coordinating and organizational implications of such a change will be investigated. Two versions of a multi-agent system have been constructed: NS-MAS 1 and NS-MAS 2. The involvement of active passengers as is realized in NS-MAS 1, provides the organizational specifications of realizing dispatcher-passenger communication. Furthermore, this implementation provides indications for bridging the functional differences between passengers and dispatchers. NS-MAS 2 operates with simulated passive passengers, based on statistical data of passenger movements, and implements the coordination possibilities taking into account passenger involvement in dispatching.
Keywords: innovation, multi-agent systems, organization, planning

Ré-organisation, utilisabilité, systèmes innovants (Reorganization, Usability, Innovative Systems)

Plateforme d'utilisabilité/usage MultiCom: objectifs, réalisation, usages et retours d'expérience BIBAKFull-Text 109-116
  Francis Jambon; Brigitte Meillon; Christian Perrot; Jean Caelen
This article describes the design approach and experience gained when implementing an original usability laboratory: the MultiCom platform. The purpose of this platform is the evaluation of the usability and usage of a wide range of interactive systems: from classic systems to ubiquitous environments. For this, the platform was designed as a large theater where acts could be played. The relevance of the design choices (surface, ground plane, automation) was validated through several experiments that were successfully carried out on the platform.
Keywords: usability/usage laboratory
Conception d'un hypermédia adaptatif centré sur le style d'apprentissage BIBAKFull-Text 117-122
  Lamia Mahnane; Med Tayeb Laskri
This article discusses learning style as an adaptive criterion of an educational hypermedia system. Our approach is based on the measuring of the performance of a learner in an objective learning designed according to the characteristics proposed by Felder, to describe the learning style of a learner. If the learner's performance is satisfactory, then it is likely that the content and the proposed pedagogie activities match his/her learning style. Otherwise, the course design should be adapted. The system uses the formalism of Bayesian network to modal the dependence between performance, the presented documents and the learning style.
Keywords: Bayesian network, adaptive hypermedia, learning style, the learner, the pedagogical documents
Complexité, systèmes et apprentissages. Une réflexion liée à la conception et à l'innovation BIBAKFull-Text 123-128
  Jean-Michel Larrasquet; Iban Lizarralde
In this contribution, we are focusing on this side of complexity which is grounded on omnipresence of interpretation in the production of cognitive objects in the processes of innovation and design, their organization and management. Our "socio-cognitive" approach allows highlighting the status of these objects (particularly the concept of a "system") and also what "producing knowledge" means in the frame of such processes. This reflection leads us to (re-) consider the way we have to build "systems" socio-cognitively, to take life-cycles into consideration and to begin to think about the development of knowledge and competences that actors (particularly project managers) need in order to intervene cleverly in the management of such projects of innovation and design.
Keywords: complexity, design, innovation, life cycle, skill, system thinking
Usagers vulnérables et véhicules industriels en milieu urbain: approche pluridisciplinaire pour la conception d'une assistance à la conduite d'un camion BIBAKFull-Text 129-136
  Annick Maincent; Hélène Tattegrain; Marie-Pierre Bruyas
Vulnerable users safety is an important issue in terms of public health: Most of these accidents involving truck and vulnerable user in urban areas has tragic consequences for user and implicates trucks presence in urban areas. The VIVRE2 project (ANR05-PDIT) took as its objective the study and design of technological solutions for significantly reducing the number of these accidents.
   Around the truck driving simulator of RENAULT TRUCKS, designers, psychologists and ergonomists (LESCOT/INRETS and LEACM/University of Lyon2) specified strategies of driver assistance according to critical situations and Man Machine Interface. A tool for designing assistance systems has been specified and applied to the detection of vulnerable users in order to assess the relevance and efficiency of a homogeneous system for the whole identified situations. The designed system was evolved on the dynamical driving simulator.
   This paper presents the method for designing a driver assistance system, from contextual analysis to specification of HMI and strategies of assistance.
Keywords: critical situations, design methodology, industrial vehicles, truck driving assistance, urban areas, vulnerable users

Evaluation, apprentissage, utilisabilité et innovation (Evaluation, Learning, Usability, and Innovation)

Didactique des sciences et ergonomie pour l'innovation grâce aux technologies mobiles d'apprentissage BIBAKFull-Text 139-146
  Odile Martial; Jesús Vázquez-Abad
As part of research in teaching of science, we are interested in the innovative potential of mobile technologies. We present the theoretical fundamentals on which we base our research and we summarize two exploratory case studies: one for collaborative learning in physics and one for individual learning in chemistry. These works are conducted through a user-centered approach. They tend to demonstrate the relevance of developing applications for mobile learning of science for the younger generation of mobile pupils and students. We summarize the main features of the feedback obtained and our prospects for the development of mobile learning plateformes with innovative focus on the needs of learners and enabling them to integrate technologies at the right time and the right place.
Keywords: collaborative learning, m-learning, mobiles technologies, personal digital assistant (PDA), quiz, simulator, students
Evolution des pratiques en conception: une approche ergonomique compréhensive des objets médiateurs BIBAKFull-Text 147-152
  Catherine Elsen; Françoise Darses; Pierre Leclercq
This paper studies the evolution and modulation of "mediating objects'" use in industrial design since the introduction of CAD (Computer Aided Design) tools. These tools have generally been studied for their pros and cons inside the design process, and always in comparison with more "traditional" tools (freehand sketches or physical models) [9; 5]. The paper suggests rather to consider these mediating tools' complementarities, that can sometimes occur very early inside the design process (since ideation). The theoretical bases that structure the whole intervention are presented and discussed given this suggestion, as well as the in situ intervention's main results. The new professional work-habits are objectivised.
Keywords: ergonomics, evolution of industrial design practices, mediating objects

Transformation du travail, évaluation et nouvelles technologies (Transforming Work, Evaluation and New Technology)

Incompréhension et réunion de conception d'un collectif distribué: déroulement des réunions et rôle des comptesrendus BIBAKFull-Text 155-161
  Corinne Grosse; Flore Barcellini
This communication concerns an intervention in a distributed team of a computer science enterprise. Its objective was to prevent misunderstandings that can occur within the collective. We are interested to misunderstandings related to the design meetings, and the meeting's minutes associated as memories of meetings and as a way to prevent misunderstandings. We found that 1 to 5% of the meeting is included in the minutes and that some issues still not finalized or confidential are not included in the meeting's minutes. Furthermore, we show that not logged information cannot be heard by the co-designers: 20 to 100% of them attend the meeting with their laptop and work on other tasks in parallel. We propose some organizational recommendations (format of the minutes, temporal organization of the meeting) to overcome these difficulties.
Keywords: collaborative meetings, collective conception, communication, misunderstandings, situation awareness
Creativity as a tool for prospective use analysis in the design of innovative products BIBAKFull-Text 162-169
  Julien Nelson; Stéphanie Buisine; Améziane Aoussat
Ergonomists' participation to New Product Development (NPD) projects has undergone major evolutions in recent years. One consequence is the changing status of the ergonomist, from an expert in diagnosing existing activities, to an expert in identifying opportunities in the use of a new product, with a need for new methods and tools to assist prospective analysis of future use. We propose an original approach to address this need of designers in general and ergonomists in particular. We first present a survey of issues regarding ergonomics involvement in NPD projects. We then argue that creativity methods may be used to address some of these issues. Lastly, we describe a protocol to test this claim, assessing the benefits of two creativity methods -- brainwriting and discovery matrices -- for prospective use analysis, with two different applications: the design of products based on emerging technologies, and that of safety systems.
Keywords: creativity, innovation processes, prospective ergonomics, use analysis
Comment enrichir l'évaluation des offres du groupe France telecom orange dans une perspective de simplicité?: retour sur la pratique en centre de tests clients grand public France BIBAKFull-Text 170-174
  Dominique Prigent; Christophe Bonnard
This article describes the practice of the ergonomists of the group FT Orange working in the Customers Test Center of Rennes. It resumes the usual methods to evaluate the utilisability of products and services according to the criteria of the Standard ISO 9241-11: the objective measures supply direct indications of efficiency and effectiveness, the subjective measures can be directly connected in felt customer (satisfaction on the simplicity). It wonders about the evolution of the practice which would take into account the other elements presented in the literature (emotional constituent, cost, aesthetics, utility, etc.) to collect and measure the perception of the customer in a constant concern of simplification of the major offers.
Keywords: efficiency, emotion, evaluation, simplicity, usability test, user testing, utilisability, utility

Facteurs humains, transformation au travail, sécurité (Human Factors, Transforming Work, Security)

L'autorité partagée pour mieux décider à bord du Rafale BIBAKFull-Text 177-184
  Daniel Hauret
Designing the next generation fighter aircraft requires more than just a techno centered capability approach. This study offers an exploratory anthropocentric research aiming at establishing the fundamental principles of an aircraft architecture that would put its operator in optimal conditions to make the right decisions.
   As future missions become more and more complex and because the process timeframe keeps getting shorter, when analyzing the cognitive mechanisms, the possibility to share the decision authority between the human and the machine has to be envisaged.
   Crewmembers interviews allowed to identify and to flight simulate improvement opportunities. The first results yield a sensible reduction in the feeling of stress due to difficulty leading to overload and an increased serenity thanks to a better anticipation gained with automatic functioning.
   Moreover, the progress in measuring physiological changes could make the transfer more seamless when sharing the load, still considered with a unique artificial intelligence approach.
Keywords: Rafale, anticipation, artificial intelligence, authority sharing, automatism, decision making, fighter pilot, situation awareness, stress
De l'intérêt d'observer l'erreur humaine en situation de simulation de vol: prédire et concilier la relation humain-machine BIBAKFull-Text 185-192
  Florence Reuzeau; Benoît Papaïx
This paper describes an epidemiologic study on difficulties of use, observed during cockpit design assessment campaigns. Design a product requires to anticipate, to envisage the future modes of use, to test them and provide solutions in term of adjustment of performance man-man and man-machine to reconcile an optimal human-machine interaction. In addition to the precious data on pilots behaviors (strategy, performance), assessments results prove the convergence and the maturity rise of our design process. Finally, the analysis highlights methodological improvements within the construction of assessments scenarios in order (i) to track the human difficulties of use and errors with adequate abstraction levels, (ii) to handle all errors types in relation with novelties and (iii) generally to increase the confidence level on the data required and collected. In particular, attention to be put to integrate innovations or novelties in an existing cockpit.
Keywords: design, errors, evaluation, safety
Transformation du travail et prévention des risques: aménagement des espaces d'activités et conception des postes de travail dans les bureaux de poste BIBAKFull-Text 193-199
  Régis Mollard; Alban Gibert; Marion Wolff
The Project "Customer Service Area" (Espace Service Client -- ESC), currently implemented in post offices, resulting in a new configuration of working positions in "Ilots" now involves the position of standing work for the clerks, both for traditional activities (sending mail) or new (management of "boutique" sale of postal products, regional products, telephony, ...). With a view to preventing risks in the health and safety at work, an ergonomic support was created from feedback experiments conducted in the first twenty tests ESC offices equipped with furniture derived from those existing in current offices. Given the results, it was necessary to design specific furniture for different "Ilots" that were then validated through user testing. Other recommendations have also been developed for the management of workspaces, the choice of different furniture, and the establishment of frequent rotations on different working positions, to prevent risks in terms of health older staff.
Keywords: ergonomic support, furniture ergonomics, health, risk prevention, transformation of work
Transformation du travail et accompagnement ergonomique: l'exemple de la restructuration des bureaux de poste BIBAKFull-Text 200-207
  Marion Wolff; Baptiste Leroy; Florence Peschaud; Regis Mollard
The restructuring of French post offices in "Espace Service Client" -- ESC -- ("Customer Service Area"), currently underway, includes multifunction booths, a "store" for postal products and also regional produce, and booths for banking. These structural changes involve a change in work: transforming the organization's usual individual work into a new cooperative work development, managing multiple demands of customers, and learning sales techniques. To better understand the human impact of these changes and the nature of requirements for the personnel of company, semi-structured interviews were conducted with 31 employees of French Post Office. The results obtained from a discursive analysis and a geometrical data analysis (PCA type) indicate possible trails to promote the reorganization and also to help managing new situations work through an ergonomic support.
Keywords: cooperative work, ergonomic support, transformation of work

Evaluation, méthodes, utilisateurs (Evaluation, Methods, Users)

Cocoon, un système de recommandation sensible au contexte: analyse de la valeur par une étude qualitative BIBAKFull-Text 211-218
  Fatoumata Camara; Rachel Demumieux; Gaëlle Calvary; Nadine Mandran
In Thanks to ambient computing, information can be diffused and accessed everywhere, at anytime, on any platform. But how worthwhile is this for citizens? Is their quality of life improved? This article describes the application of the Worth Centered Design (WCD), proposed by G. Cockton, for identifying the worth of a context-aware recommender system, Cocoon. The work presented in this paper concerns the first phase of the WCD framework: analysis of needs. This work has been done through individual interviews. This study allowed us to understand the worth of Cocoon from a user point of view and establish key requirements for design. These outcomes are presented here as well as the protocol of interviews. To end, we discuss advantages and limitations of the Worth Centered Design.
Keywords: adaptation, assessment, context, recommender system, user centered design, worth
La perception de la qualité des services e-gouvernementaux: vers des interfaces adaptatives prenant en compte des typologies d'utilisateurs BIBAKFull-Text 219-226
  Guillaume Gronier; Gautier Drusch; Sandrine Reiter; Yannick Naudet; Alain Vagner
E-government services are actually a major stake for public administrations. However, regarding perceived quality, no models, neither measurement scales are specifically developed for them. A literature review, from a critical point of view, leads to the conclusion that actual perceived quality models are not taking enough into account end-users. This is mainly related to the methodology approaches used for their definition. In order to overcome theses weaknesses, we propose a methodology which aims at developing a measurement scale through an ergonomic approach. This measurement scale will lead to the identification of a perceived quality meta-model which could be instantiated to several sub-models according to users' profile. Finally, we put forward application perspectives to adaptive interfaces design.
Keywords: adaptive interfaces, e-citizen, e-government, e-services, methodology, perceived quality
Marketing, ergonomie et ingénierie système: jouer la complémentarité pour innover BIBAKFull-Text 227-235
  Jean-René Ruault; Claude Pourcel
Marketing, human factors and systems engineering are different disciplines which apply different profiles and skills. Marketing is taught by business schools, while very few engineering schools teach it. The latter dedicate much time to systems engineering and many others engineering's. Human factors is anchored within medicine, humanities and social sciences. It is a little part of an engineer curriculum, while, since few years, human factors and human-computer interaction are taught within engineering schools. Nowadays, conferences and volunteers meet human factors and systems engineering, such as ErgoIA (ErgoIA 2004, ErgoIA 2006, ErgoIA 2008 [22]) or AFIS' human factors technical committee.
   The aim of this article is to show complementarily between these disciplines to design systems which satisfy consumers and users' needs, particularly in the business to consumer context. At first this article presents main processes of these disciplines and how these processes should be coordinated together. Then, it demonstrates how marketing and human factors processes' outputs structure system architecture design. This article finishes with a case study applying the proposed approach, in the domain of health and care service systems.
Keywords: consumer, human factors, market, marketing, price, process, product, service, system, systems engineering, user