L'objectif initial de l'ergonomie d'adapter le travail à l'homme a progressivement évolué avec la conception d’une santé construite qui souligne la possibilité pour les travailleurs de faire pleinement usage de leurs compétences. Dans ce cadre, notre principal objectif de recherche était de mieux comprendre les possibilités de développement conjoint des personnes et de l'organisation dans une entreprise automobile de type lean production. Trois axes de recherches ont ainsi été poursuivis. Le premier visait à identifier et analyser le modèle sous-jacent du travail dans la théorie de la lean production. Le deuxième s’est intéressé à la manière dont l'activité de travail est appréhendée dans les approches participatives d’amélioration continue. Enfin, le troisième axe visait à comprendre le rôle de l’ergonomie et de l’ergonome dans la transformation des situations de travail guidée par les objectifs d’optimisation de la lean production. Au cours des chantiers, les opérateurs formulent des possibilités de transformations non prévues qui permettraient une réelle amélioration de la production en agissant sur les déterminants de la qualité de leur travail. L’action de l’ergonome orientée vers une « meilleure » participation des opérateurs par la mise en débat des règles du travail semble alors insuffisante. Une intervention au niveau stratégique de l’entreprise serait indispensable pour prendre en compte les véritables enjeux émanant au cours de ces chantiers d’amélioration continue. / The goal of ergonomic of adapting work to Man has gradually broadened in scope, notably with the evolution of the concept of health towards integrating the possibility for workers to make full use of their skills. Following this view, the main goal of our research was to better understand the possibilities of joint development of people and organization within a “lean production” industry. Three perspectives of analysis were fallowed. The first perspective related to the underlying model of work in lean production. The second perspective focused on mobilizing work activity as part of continual improvement approaches. The third perspective focused on the forms and goals of the transformation of work, in order to identify the role of ergonomics and evolutions in the practice of ergonomics in order to act in a context of deployment of a lean production system. Our results suggested that ergonomic action focused on identifying the conditions of improved participation is not enough. One must also provide feedback at the strategic level of management, so as to broaden the goals of projects aiming for continual improvement, by including the goals that had not been previously anticipated, and that had been formulated by operators.

La finalité de ce travail exploratoire, inscrit dans le cadre d’une didactique professionnelle du design naissante, est de comprendre l’incidence de l’alternance sur les apprentissages d’étudiants en design. Dans ce but, les connaissances ou savoirs impliqués et les représentations que les prescriptions proposent sont extraits puis mis en regard des représentations que les étudiants construisent de l’activité de conception en tant qu’objet social ou en jeu dans les activités d’apprentissage. Pour aborder ces représentations décrites ou construites, puis leur incidence sur l’activité de conception et sur les apprentissages, il est fait appel à un champ théorique multidisciplinaire et à un cadre méthodologique dialectique s’appuyant sur une analyse curriculaire et sur une analyse de l’activité des étudiants-apprentis. Les résultats mettent en lumière des représentations, parfois antagonistes, de l’activité de conception et de la profession de designer. Ils montrent que l’alternance des temps et des lieux d’apprentissage est un révélateur, pour les étudiants, des spécificités de l’activité de conception au sein de chacun des environnements. Ainsi, les environnements « organisants » et « capacitants » du curriculum réel, impensés dans le prescrit, modifient et régulent l’activité et le développement des compétences. Enfin, la production de connaissances, prescrite par le curriculum dans la cadre d’un « mémoire de recherche », permet aux apprentis-designers-chercheurs de développer des formes d’expertises qui interrogent sur les interactions entre savoirs pour agir et métaconnaissances pour concevoir et semblent redéfinir la représentation de la compétence de conception. / The purpose of this exploratory work, grounded on an emerging professional pedagogy of design, is to understand the impact of work-linked training in design on the learning of the design activity by students. To that end, the knowledge involved is extracted, juxtaposed with the representations that the requirement offers, and then set against the representations that students build of design activity as a social object as well as those involved in learning activities. Therefore, the theoretical field which is used is multidisciplinary. It induces a dialectical methodologic framework based both on a curricular analysis, necessary to understand the observed teaching situations, and on an analysis of the students’ activities. The outcomes shed light on these (sometimes conflicting) representations of creative design activity and of the designer’s profession. Outcomes also show the alternating times and places of learning situations reveal to the students the specificity of both designing situation. Thus, the “organizing environments” of the real curriculum and untaught within the required one, modify and regulate the system of interactions and the development of the students’ design skills. Moreover, the exchange device induces a timeline and “enabling” working and learning environments. Finally, the production of knowledge, required by the curriculum through the “research thesis”, allows the “apprentices-designers-researchers” to develop forms of expertise that question the interactions between knowledge to act and meta-knowledge to design and seems to redefine the representation of the design skill.

Text in English / Zimbabwe had 50 000 child-headed households (CHH) in 2002 and by 2010, the figure had gone up to more than 100 000, making Zimbabwe the African country with the highest number of CHH (UNICEF & UNAIDS 2010). These statistics gave rise to the sprouting of many organisations and programmes aimed at catering for the needs of the affected children. Not much attention is given to what the CHH can do for themselves and how they have be surviving without outside help. The present study explored the resilience factors and coping strategies used by children living in CHH in the Mutasa District, Zimbabwe. The mixed method concurrent triangulation design was used in the study and a constructionist theoretical framework was adopted. Semi-structured interviews and focus group discussions were used to collect data from 28 children in CHH, 46 community members, 24 teachers, 25 child service professionals, 10 advisory panel members, 3 government officials involved in policy formulation and implementation and 5 members of the CHH’s extended family. The Resilience Scale was administered to the CHH and the Tree of Life and problem solving activities were carried out with the children. Resilience scores obtained from the children in CHH were in the high to very high category of resilience. The qualitative data was thematically analysed. The research findings indicate that children in CHH use problem focused coping strategies. Their resilience is anchored in both individual and environmental factors. A Bidirectional Model of Resilience that is based on the findings emerged from the study.Three pathways to resilience that are embedded in this model were identified, furthermore the Self-Efficacy Strengths-Focused Model of Coping was proposed. Intervention strategies to foster resilience in CHH should focus on creating coping enabling environments and strengthening individual characteristics. / Psychology / Ph.D. (Psychology)

Zimbabwe had 50 000 child-headed households (CHH) in 2002 and by 2010, the figure had gone up to more than 100 000, making Zimbabwe the African country with the highest number of CHH (UNICEF & UNAIDS 2010). These statistics gave rise to the sprouting of many organisations and programmes aimed at catering for the needs of the affected children. Not much attention is given to what the CHH can do for themselves and how they have be surviving without outside help. The present study explored the resilience factors and coping strategies used by children living in CHH in the Mutasa District, Zimbabwe. The mixed method concurrent triangulation design was used in the study and a constructionist theoretical framework was adopted. Semi-structured interviews and focus group discussions were used to collect data from 28 children in CHH, 46 community members, 24 teachers, 25 child service professionals, 10 advisory panel members, 3 government officials involved in policy formulation and implementation and 5 members of the CHH’s extended family. The Resilience Scale was administered to the CHH and the Tree of Life and problem solving activities were carried out with the children. Resilience scores obtained from the children in CHH were in the high to very high category of resilience. The qualitative data was thematically analysed. The research findings indicate that children in CHH use problem focused coping strategies. Their resilience is anchored in both individual and environmental factors. A Bidirectional Model of Resilience that is based on the findings emerged from the study.Three pathways to resilience that are embedded in this model were identified, furthermore the Self-Efficacy Strengths-Focused Model of Coping was proposed. Intervention strategies to foster resilience in CHH should focus on creating coping enabling environments and strengthening individual characteristics. / Psychology / Ph.D. (Psychology)