Guillaume Masserey

ORCHESTRA: formalism to express mobile cooperative applications

Orchestra is a new formalism on which we are working in the field of cooperative systems design. In CoCSys methodology for Cooperative Capillary Systems design, we transform partial scenarios describing particular cooperative situations in a more comprehensive Cooperative Behaviour Model (CBM). In this paper, we describe our contribution to the need for a graphical formalism which would be able to express in a natural way, understandable by different actors (users, designers, developers,...) different cooperation situations in an ambient intelligence environment (mobile, context-aware, proactive and ubiquitous). ORCHESTRA is complementary to CTT and UML Use cases, and its objective is to express clearly cooperation situations (explaining easily synchronous or asynchronous cooperation activities) and the role (active or passive) played instantaneously by each actor. We take into account main concepts of “cooperative world” which are Actors, Roles, Groups, Tasks, Processes, Artefacts (Tools and Objects) and Contexts (Platforms, Situations and Users). With Orchestra formalism we try to express by a sort of music staff individual and collective behaviours. In this way we can model either individual works or organized collective activities. We present this formalism, its metamodel and its use for the description of two cooperative situations. We describe also a transformational process projecting a ORCHESTRA description on the cooperative architecture.

Un modèle préliminaire du domaine des systèmes mixtes

This paper describes a multidisciplinary approach to the modelling of the mixed reality systems domain. Such modelling, useful for structuring such a recent interaction domain, and to facilitate design and evaluation from both software engineering and ergonomics perspectives, is based on the combination of two approaches: the ASUR notation and an ergonomic recommendations-based model. Both approaches are presented as well as the results of their combination. The resulting model, an extension of the ASUR notation, is described as well as its limits and perspectives.

From task model to wearable computer configuration

This article describes a method for choosing of interaction peripherals for wearable computer in Mobile and Augmented Reality context. This method is based on a transformational process starting by user tasks modeling and their decomposition on user, machine and interaction tasks. Interaction tasks are expressed by interaction atoms (device independent) which are realized by interaction techniques related to interaction devices. A referential of interaction devices helps designers in choosing devices in relation with tasks to be supported and contextual requirements (functional and non-functional). A well organized selection process based on several devices/criteria matrixes allows explicit comparison of configurations in regard with usability criteria.

Environnement de conception et développement d'applications interactives selon l'architecture AMF

In this demonstration we are presenting a framework that supports the AMF (Multi-Facet Agent) approach which is a model-based approach. It allows building quickly interactive and adaptative software. AMF is a multi-agent approach, with a graphical formalism and an engine able to run AMF applications for which the control part is described in an XML file. After having introduced the research context, we are presenting the framework developed by the ICTT lab. This framework allows describing AMF applications through a specific editor showing alternatively a graphical view of AMF digrams or a textural view of the XML control part of the application. Finally, this framework permits also to input the application code and to run the described applications.

Instrumentation du modèle d'architecture logicielle AMF

We describe an instrumentation of the AMF (Agent with Multiple Facets) software architecture, which allows its implementation through several tools. After the introduction of the AMF model and its principles, we situate and detail the tools carried out, mainly an AMF runtime engine and an editor. Then, we give an implementation example showing the potential of this software engineering solution.