Faouzi Moussa

A model based approach to semi-automated user interface generation for process control interactive applications

Abstract The purpose of this paper is the description of a model-based approach (called ERGO-CONCEPTOR) to semi-automated user interface (UI) generation. Its application field concerns process control interactive applications. From a database describing the industrial process (for instance a chemical process) to be supervised, the system is able to generate automatically UI specifications using guidelines. The specifications contain eventually, design alternatives. They can be selected by the designer who can then interactively generate the UI. ERGO-CONCEPTOR is composed of three main modules. The first allows an interactive process description according to three sub-models (a physical model, a structural model and a functional model). The second module uses a knowledge-based approach for the automated generation of the UI specification. Finally, the third module is used by the designer to interactively generate the specified UI.

Towards an automatic analysis of interaction data for HCI evaluation: application to a transport network supervision system

In this paper, we propose a method for the analysis and the interpretation of the interactions between the user and the interactive system to evaluate. The proposed approach is based on the comparison between the user interaction sequences and the sequences average. This confrontation concerns the task execution duration, the realized tasks number and the action sequence used in a defined experimental scenario.

XML in formal specification, verification and generation of mobile HCI

Our work is carried out in the framework of a global approach for Human-Computer Interaction design and automatic generation. This approach is based on a formal modeling of the Human-Computer Interaction. We propose a Model Based Design Approach (MBDA). We are concerned with identifying the user tasks and requirements and further with the automatic graphical interface validation and generation. Therefore we use Petri Nets. Indeed, the Petri Nets are very efficient in formal modeling of HCI. Our research focuses on mobile HCI. It aims to analyze the ubiquitous environment using ontology described in OWL2 standard. We face difficulties in modeling ontology in XML using Petri Nets. Thus, it becomes necessary to adopt approaches for manipulation of Petri nets via XML as PNML or XML Nets.

De la modélisation des dysfonctionnements d'un système complexe à la déduction des besoins informationnels des utilisateurs: une transition difficile en IHM

In industrial processes, the dysfunction modelling step is a must. It is performed in the beginning of the design process. Information carried out in this step offers a great opportunity to deduce the users informational needs. However, going from the dysfunction modelling step to the users informational needs deduction step still seems to be difficult and is often miss studied on complex cases. In this paper, we present a way of solution. An illustration is given too.

A service-oriented application creation process in ubiquitous environments: Travel assistant mobile application

Purpose Many features constitute an adaptive system such as user model, interface specification, business functionalities and service implementation. Context awareness is an important facet of service oriented application creation dealing with the gathering, use and representation of context information. Generally, user interfaces and services communities work separately on the adaptation process and do not converge. The aim of this work is to manage the system’s functionalities and the user interface that delivers data to the relevant consumer early since the design phase until the code generation. Design/methodology/approach The authors discuss how a unified method based on a model-driven architecture for adaptive user interface and pervasive service creation eases the work of designers and developers, limits incompatibility issues and supports dynamic generation of systems adapted to different contexts of use. Findings The proposed approach is able to support a semi-automatic ubiquitous application generation with service, behavior, presentation and content adaptation. Originality/value In this paper, the authors tackle context-awareness at two levels: system functionalities and user interface generation. The authors also tackle adaptation at the specification and implementation levels.

XML and Petri Nets in specification and generation of mobile HCI

We propose, in this paper, a global approach, based on a formal modeling of the mobile Human-Computer Interaction. It aims to analyze an ubiquitous environment using ontology, described in OWL; and modeling the environment by using a combination of Petri Nets and XML as the Petri Net Markup Language (PNML). In our research, we are interested particularly in the integration of OWL with PNML. How to ensure data exchange between the analyzing and modeling phases of a Human-Computer System? And how can the OWL data feed our Petri Nets?

Blinks Identification Using the GMM Classification Method of Polynomial Modeling of EEG Signals

Nowadays, people who suffer from sever motor handicap like amyotrophic lateral sclerosis (ALS) can take a profit from the commercialization of brain computer interface (BCI). This technology progress contributes on the integration of ALS people in the society by giving them the possibility to command machine only by the power of brain signals (EEG signals). Therefore, the BCI system can be based on deferent paradigms. Our main objective here, is to detect the blinks in the EEG signals in order to command machine. In this paper, we propose a new blink detection approach based on unsupervised clustering of the blink regression parameters using the Gaussian mixture model (GMM). Our approach is mainly based on learning and prediction phases. The learning phase aims to apply GMM clustering on blink curve parameters which are approximated by polynomial regression. After the automatic segmentation process, the prediction phase aims to classify the curve approximated parameters related to each of the unknown EEG segments. We experimented our approach based on 50 collected blinks from five different subjects. We obtained encouraging results with 0.9310 as a recognition accuracy score...

Une approche IDM pour l'adaptation ergonomique au contexte d'IHM mobile

With the notion of mobility and computing ubiquity, we have migrated from the user-centered design to the context-based design, integrating user, platform and environment. We have passed from the presentation ergonomics and adaptation to the user profiles to the contextual ergonomics and the management of nomadic objects. It is against this background that fits our research. We propose, for that purpose, an approach, based on MDA (Model-Driven Architecture) concepts, for ergonomic adaptation to the context. It is based on a generic context model and transformation models.

Use of Formalized Guidelines for Semi-Automated Generation of GUI: The Ergo-Conceptor+ Tool

Automated applications with high degree of security require the permanent presence of human operator to control the system’s evolution and to react to unexpected events. In order to help the operator in its different tasks, GUI are generally proposed. But the major problems for the development of such interfaces is to decide: What to present in these interfaces? When and how to present it? Our research deals with these problems and proposes a design approach of user interfaces based on guidelines. This approach is supported by a tool called Ergo-conceptor+.