A psychological framework to enable effective cognitive processing in the design of emergency management information systems

Human cognitive processing and decision making are essential aspects in emergency management. Emergency situations imply additional demands to information processing. To meaningfully support decision makers in emergencies, a comprehensive understanding of the human perception and decision making processes and their underlying principles is required in the design of Emergency Management Information Systems (EMIS).This paper presents a psychological framework that models the stages and components of decision making in the context of emergency management. To this end, psychological research on human perception and information processing, knowledge and competence modelling, human judgement and decision making, individual and situational factors, stress, and self-regulation are identified as important compents of the framework. The psychological framework represents a comprehensive model of decision making of emergency managers, for a better understanding of the involved cognitive processes and influencing factors on the person level and on the context level. The paper posits the framework as a guide in the identification of requirements for emergency managers during systems analysis. This comprises systematically describing decision tasks in emergency situations and identifying needs for supporting them. The knowledge on human perception and decision making represented by the framework can also be used to inform the user interface design of the EMIS. It may also inform the evaluation of EMIS as it provides a theoretically founded representation of relevant aspects of human-computer interaction, which facilitates the identification of success indciators to be addressed in user-centred evaluation. The framework furthermore supports the design and implementation of training programmes through the differentiation and modelling of knowledge and competence relevant in emergency decision making. To demonstrate the application of the psychological framework in the design, development, and testing of EMIS a set of concrete design principles as well as exemplary paper prototypes applying these principles are presented

Establishing product appearance specifications with the identification of user aesthetic needs in product conceptual design

This chapter presents the basic concepts of aesthetic needs and product specifications in conceptual design. The user aesthetics needs are considered one of the significant determinants in increasing user satisfaction. In this regard, the importance of establishing product appearance specifications to identify user aesthetic needs is discussed. A method is introduced to demonstrate the significance of considering aesthetic and emotional needs when establishing product appearance specifications in product conceptual design. To improve appearance specifications based on aesthetic experiences collected from users and designers, an approach using fuzzy logic is proposed and illustrated by a case study of digital camera design

A conceptual design specification based on user aesthetic information analysis and product functional reasoning

User satisfaction with a product plays a direct role in the purchasing decisions. With the enrichment of material life and the growth of individual requirements, this satisfaction is derived from the requirement for functionality to aesthetics. Conventional product design methods normally focus on achieving the required functions where its design specifications are mainly related to certain functional or usability requirements. In recent years, researchers have made efforts to develop methods for supporting aesthetic design activities during the product conceptual design phase. However, most of these methods hardly consider product aesthetics or the consumers’ emotional needs. Therefore, this study proposed a user-driven conceptual design specification integrating functional reasoning with aesthetic information analysis. The method consisted of two tasks, the construction of a mapping model and the implementation of the mapping model. Firstly, the mapping model was constructed for capturing the relationships between initial design specifications and user experience (UX). Secondly, the proposed design specifications were selected, refined, and optimized based on the mapping model. A case study on digital camera design was carried out to demonstrate the feasibility and effectiveness of the proposed method. The results showed that, compared with the initial design specification candidates, the UX was enhanced by applying the improved design specifications

Les principes de la Gestalt et des proportions dérivées du nombre d'or comme outils créatifs pour la conception d'environnements intérieurs

Cette recherche présente l’étude d'un procédé conceptuel pouvant potentiellement être utilisé lors de la réalisation d’un projet de design d’intérieur pour générer des impacts spatiaux efficaces via des gestes simples. Ce sont donc principalement les designers d'intérieur qui peuvent bénéficier de la lecture de ce travail, mais également les autres disciplines du design d'espace. La simplicité et l’épuration des formes sont considérées dans ce travail comme une avenue possible pour réduire les ressources financières et matérielles requises et ainsi répondre aux enjeux budgétaires et écologiques des projets. Ensuite, pour favoriser l’émergence d’un design efficace et de qualité, cette recherche met de l'avant des savoirs théoriques et étudie comment des possibilités conceptuelles peuvent émerger ce ceux-ci lorsque des principes issus de la Gestalt et des proportions sont transplantés dans la volumétrie d'un espace physique. C’est par l’entremise d’une revue de projets existants construits, d’investigations exploratoires volumétriques et de mises en application digitales qu’il a été possible d’avoir une vision plus éclairée de la potentialité des principes à l’étude à favoriser la mise en place d’interventions de design efficaces. L’étude permet de constater que les principes issus de la Gestalt ont le potentiel d'influencer la perception (cognition) spatiale de l'usager, de favoriser la mise en place d’un design visuellement distingué ainsi que de définir et de structurer les espaces. Ensuite, l’étude permet de constater que l'utilisation des principes de proportions inspirés du nombre d'or favorise un design esthétiquement harmonieux et adapté à la morphologie de l’homme ainsi qu’une symbiose avec la nature. L'harmonie des proportions favorise un bien-être à l'occupant du lieu. Finalement, l'utilisation d'un système de proportion peut agir à titre de guide structurel pour la conception de compositions spatiales. Mots-clés : design d’intérieur, conception, spatialité, principes, Gestalt, proportion, nombre d’or, fonctionnalité, esthétisme, simplicit

Information design of public documents : applying Gestalt principles to improve user understanding

La conception des documents publics joue un rôle important dans la manière dont l'utilisateur perçoit et comprend les informations importantes qu'ils véhiculent. De plus, la conception de tels documents peut avoir un impact important sur l’utilisateur en ce qui concernesa confiance et son processus décisionnel. Les principes de design d’informationpeuvent apporter de précieuses perspectives sur comment les documents publics devraient être conçus pour qu’ils réalisent leurs objectifs. Cependant, le domaine du design d’informationdes documents publics souffre d’un manque important dans l’application de ces principes. D'autre part, les principes perceptuels delaGestalt peuvent expliquer comment les humains organisent des éléments visuels en groupes et comment ils reconnaissent des patrons. Depuis leur introduction au début du XXesiècle, les principes delaGestalt ont servi à améliorer le processus visuo-perceptuel dans différents champs d'application (telles que la peinture, la sculpture, la création graphique et le design d’information). Dans ce mémoire, nous étudionsl’application des principes de la Gestalt pour améliorer la compréhension de l’utilisateur des documents publics. Pour ce faire, en premier lieu, une méthode d’évaluation heuristique est adaptée pour identifier les problèmes d'utilisabilité dans les documents publics. Deuxièmement, une méthode d’analyse de documents, reposant sur des mesures des éléments visuels dans les documents, est proposée pour étudier l’application des principes de Gestalt, ainsi que les principes de conception graphique, dans les documents publics. Un échantillon de deux documents publics est utilisé pour démontrer et tester la méthodologie proposée. Sur la base des failles de conception identifiées par les deux méthodes susmentionnées, une approche minimale est proposée pour appliquer les principes de la Gestalt pour résoudre les problèmes identifiés. Les résultats obtenus montrent que l’application des principes de la Gestalt peut améliorer l'accessibilité et la compréhensibilité de l'information présentéedans les documents publics.The design of public documents playsan important role in user perception and understanding of the important information they contain. Moreover, the design of such documents can have an important impact on user self-confidence and decision making. The information design principles pertainingto how to visually structure and verbally construct documents to be easily well perceived and understood can provide valuable insights on how public documents should be designed and presented. Yet, in designing public documents there is a lack in applyingthe information design methods and frameworks. On the other hand, the Gestalt principles of perception can explain how humans organize visual elements into groups and how humans perceive and recognize patterns. Since their introduction in the early twentieth century, the Gestalt principles were examined and studied various times to improve the visual perceptual process in many application areas such as: painting, sculpture, graphic design and information design. Accordingly, this work studies the application of the Gestalt principles to improve the user understanding of public documents. To this end, first an adapted heuristic evaluation method is proposed to identify the usability problems of public documents. Secondly, based on precise measurements of thevisual elements within the documents, a document analytics method is proposed to examine the application of the Gestalt principles as well as the design principles in public documents. A sample comprising two public documents is used to test and demonstrate the proposed methodology. Based on the design flaws detected by the aforementioned two methods, a minimal approach is adopted to apply the Gestalt principles to solve the identified problems. The results obtained show that the integration of the Gestaltprinciples in the design process can improve the accessibility of information in public documents and resolve many of the usability problems in these documents