HAL (Le Centre pour la Communication Scientifique Directe), Mar 22, 2020
The use of multiple User Interface (UI) designs for evaluation has been demonstrated beneficial f... more The use of multiple User Interface (UI) designs for evaluation has been demonstrated beneficial for UI evaluation as it results in better feedback, both qualitatively and quantitatively. However, producing several designs is time-consuming. Moreover, the properties that the alternative UI must satisfy remain underexplored. The paper investigates the use of different prototype forms of the same design as support to evaluation instead of relying on alternative design solutions. We investigate two experimental conditions: (1) paper prototype first then video prototype, and (2) video prototype first then paper prototype. Results show that the combination of paper and video prototypes is well suited for UI evaluation, as feedback addresses all aspects of Human-Computer Interaction (HCI), namely, utility, usability, and aesthetics. When exposed to multiple prototypes, users develop an understanding of the functional core and of the interactive aspect of the system. The experiment outcomes indicate that, when evaluating the paper prototype first, then the video prototype, users tend to be more critical and provide more suggestions of improvements.
Our work is carried out in the framework of a global approach for Human-Computer Interaction desi... more 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.
With the considerable advancement of technologies and the proliferation of mobile devices, evalua... more With the considerable advancement of technologies and the proliferation of mobile devices, evaluating the usability of software applications has become an emerging research area. Hence, improving the quality of software applications is crucial in context-aware environments. For that reason an increasing attention is drawn towards the development and the adoption of appropriate research proposals able to evaluate the mobile application usability. This article is a contribution to proposing a methodology for the development of context-aware systems based on usability requirements during the user interface design stage. In particular, this approach focuses on how to infer consistent context-based usability requirements and how to incorporate these requirements into a user interface development process. As a proof of the proposal concept, we have applied our methodology to an illustrative case study. More, experiments with end users have been carried out.
International Journal of Industrial and Systems Engineering, 2020
The awareness of the importance of system usability is in a constant boosting. Considering usabil... more The awareness of the importance of system usability is in a constant boosting. Considering usability has been more and more recognised as one of the indispensable quality factors in the success of an interactive system. This paper explores in this direction the importance of usability in context-aware user interface design for computerised mobile maintenance solutions. We propose a methodology for incorporating contextualised usability requirements in the development process of mobile applications in industrial maintenance sector. An illustrative case study is presented in a typical industrial environment to validate our proposal. Finally, an experimental evaluation was conducted with end users to evaluate our proposal.
Usability in computerized mobile assistance solutions
International Journal of Industrial and Systems Engineering, 2020
The awareness of the importance of system usability is in a constant boosting. Considering usabil... more The awareness of the importance of system usability is in a constant boosting. Considering usability has been more and more recognised as one of the indispensable quality factors in the success of an interactive system. This paper explores in this direction the importance of usability in context-aware user interface design for computerised mobile maintenance solutions. We propose a methodology for incorporating contextualised usability requirements in the development process of mobile applications in industrial maintenance sector. An illustrative case study is presented in a typical industrial environment to validate our proposal. Finally, an experimental evaluation was conducted with end users to evaluate our proposal.
User's feedback provides valuable information suitable to help designers to improve their work. I... more User's feedback provides valuable information suitable to help designers to improve their work. In this paper, we present a study on user's feedback when evaluating a User Interface (UI) by comparison. Our aim is to define the properties that the alternative UI must satisfy to maximize the benefits of comparative evaluation. The UIs considered in the study were designed using the CAMELEON Reference Framework (CRF), covering variations at each level of abstraction. We study the impact of each variation on users' feedback. We show that when the alternative design refers to the same task model as the original one but using a different abstract UI, the number of negative returns is significantly higher, making the comparative evaluation more productive.
Petri Nets Context Modeling for the Pervasive Human-Computer Interfaces
Springer eBooks, 2013
ABSTRACT Nowadays, adapting user interfaces to the context becomes very important in a world wher... more ABSTRACT Nowadays, adapting user interfaces to the context becomes very important in a world where technology and technical adaptations interfaces con-tinue to increase. This paper presents an approach for the automatic and real time generation of user interface adapted to the context of use. We are particu-larly interested by modeling the data of context as well as the user’s task using Petri nets. The Petri nets are used for its simplicity to generate XML files, which will present the specification and generation of the human-computer in-terfaces adapted to the context. This approach will be illustrated with a case study that presents a diabetic patient suffering from hypoglycemia in a "smart hospital".
International Conference on Software Engineering Advances, Aug 21, 2016
During the last three decades, different methodologies and tools were developed for the design an... more During the last three decades, different methodologies and tools were developed for the design and the evaluation of Human-Computer Interaction. However, ergonomic knowledge is often informal and lacks-for the utmost part any structure to be directly exploited by designers. Ergonomists still find it hard to use the ergonomic requirements in practice. This paper presents an ergonomic approach for designing Human-Computer Interfaces considering context information. We are particularly interested in formalizing the ergonomic knowledge. To validate our approach, we propose the application of a Computerized Maintenance Management System, dedicated to the management of intervention requests and dashboard monitoring.
Coordination Mining in Crisis: A Tool and a Case Study
Lecture notes in business information processing, 2016
Crisis management systems are dynamic systems essentially build to support communication and coor... more Crisis management systems are dynamic systems essentially build to support communication and coordination between heterogeneous, distributed and autonomous actors belonging to different organizations. In this paper, we are particularly interested in coordination. We show how the analysis of the interactions among the crisis actors can help discovering meaningful coordination patterns: organizational structures and interaction protocols. To do so, we use workflow mining techniques. Since workflow mining techniques are mainly focused on process (plan) discovery, we show how to extend them to be applied to the organizational and interactional dimensions. We use the Multi-agent paradigm to abstract these two dimensions in a uniform and coherent framework, and we provide a tool for their discovery. The contribution of this paper is three-folds: (i) a proposition of new log-file structure including Agent Communication Language performatives to capture interaction and relationships between actors; (ii) the design and implementation of a tool able to discover and analyze organizational structures and protocols; and (iii) the validation of this tool through a concrete example concerning the cooperative response of the Tunisian government to the terrorist attack of Bardo museum on March 18, 2015.
The purpose of this paper is the description of a model-based approach (called ERGO-CONCEPTOR) to... more The purpose of this paper is the description of a model-based approach (called ERGO-CONCEPTOR) to semiautomated user interface 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.
HAL (Le Centre pour la Communication Scientifique Directe), Mar 22, 2020
The use of multiple User Interface (UI) designs for evaluation has been demonstrated beneficial f... more The use of multiple User Interface (UI) designs for evaluation has been demonstrated beneficial for UI evaluation as it results in better feedback, both qualitatively and quantitatively. However, producing several designs is time-consuming. Moreover, the properties that the alternative UI must satisfy remain underexplored. The paper investigates the use of different prototype forms of the same design as support to evaluation instead of relying on alternative design solutions. We investigate two experimental conditions: (1) paper prototype first then video prototype, and (2) video prototype first then paper prototype. Results show that the combination of paper and video prototypes is well suited for UI evaluation, as feedback addresses all aspects of Human-Computer Interaction (HCI), namely, utility, usability, and aesthetics. When exposed to multiple prototypes, users develop an understanding of the functional core and of the interactive aspect of the system. The experiment outcomes indicate that, when evaluating the paper prototype first, then the video prototype, users tend to be more critical and provide more suggestions of improvements.
Our work is carried out in the framework of a global approach for Human-Computer Interaction desi... more 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.
With the considerable advancement of technologies and the proliferation of mobile devices, evalua... more With the considerable advancement of technologies and the proliferation of mobile devices, evaluating the usability of software applications has become an emerging research area. Hence, improving the quality of software applications is crucial in context-aware environments. For that reason an increasing attention is drawn towards the development and the adoption of appropriate research proposals able to evaluate the mobile application usability. This article is a contribution to proposing a methodology for the development of context-aware systems based on usability requirements during the user interface design stage. In particular, this approach focuses on how to infer consistent context-based usability requirements and how to incorporate these requirements into a user interface development process. As a proof of the proposal concept, we have applied our methodology to an illustrative case study. More, experiments with end users have been carried out.
International Journal of Industrial and Systems Engineering, 2020
The awareness of the importance of system usability is in a constant boosting. Considering usabil... more The awareness of the importance of system usability is in a constant boosting. Considering usability has been more and more recognised as one of the indispensable quality factors in the success of an interactive system. This paper explores in this direction the importance of usability in context-aware user interface design for computerised mobile maintenance solutions. We propose a methodology for incorporating contextualised usability requirements in the development process of mobile applications in industrial maintenance sector. An illustrative case study is presented in a typical industrial environment to validate our proposal. Finally, an experimental evaluation was conducted with end users to evaluate our proposal.
Usability in computerized mobile assistance solutions
International Journal of Industrial and Systems Engineering, 2020
The awareness of the importance of system usability is in a constant boosting. Considering usabil... more The awareness of the importance of system usability is in a constant boosting. Considering usability has been more and more recognised as one of the indispensable quality factors in the success of an interactive system. This paper explores in this direction the importance of usability in context-aware user interface design for computerised mobile maintenance solutions. We propose a methodology for incorporating contextualised usability requirements in the development process of mobile applications in industrial maintenance sector. An illustrative case study is presented in a typical industrial environment to validate our proposal. Finally, an experimental evaluation was conducted with end users to evaluate our proposal.
User's feedback provides valuable information suitable to help designers to improve their work. I... more User's feedback provides valuable information suitable to help designers to improve their work. In this paper, we present a study on user's feedback when evaluating a User Interface (UI) by comparison. Our aim is to define the properties that the alternative UI must satisfy to maximize the benefits of comparative evaluation. The UIs considered in the study were designed using the CAMELEON Reference Framework (CRF), covering variations at each level of abstraction. We study the impact of each variation on users' feedback. We show that when the alternative design refers to the same task model as the original one but using a different abstract UI, the number of negative returns is significantly higher, making the comparative evaluation more productive.
Petri Nets Context Modeling for the Pervasive Human-Computer Interfaces
Springer eBooks, 2013
ABSTRACT Nowadays, adapting user interfaces to the context becomes very important in a world wher... more ABSTRACT Nowadays, adapting user interfaces to the context becomes very important in a world where technology and technical adaptations interfaces con-tinue to increase. This paper presents an approach for the automatic and real time generation of user interface adapted to the context of use. We are particu-larly interested by modeling the data of context as well as the user’s task using Petri nets. The Petri nets are used for its simplicity to generate XML files, which will present the specification and generation of the human-computer in-terfaces adapted to the context. This approach will be illustrated with a case study that presents a diabetic patient suffering from hypoglycemia in a "smart hospital".
International Conference on Software Engineering Advances, Aug 21, 2016
During the last three decades, different methodologies and tools were developed for the design an... more During the last three decades, different methodologies and tools were developed for the design and the evaluation of Human-Computer Interaction. However, ergonomic knowledge is often informal and lacks-for the utmost part any structure to be directly exploited by designers. Ergonomists still find it hard to use the ergonomic requirements in practice. This paper presents an ergonomic approach for designing Human-Computer Interfaces considering context information. We are particularly interested in formalizing the ergonomic knowledge. To validate our approach, we propose the application of a Computerized Maintenance Management System, dedicated to the management of intervention requests and dashboard monitoring.
Coordination Mining in Crisis: A Tool and a Case Study
Lecture notes in business information processing, 2016
Crisis management systems are dynamic systems essentially build to support communication and coor... more Crisis management systems are dynamic systems essentially build to support communication and coordination between heterogeneous, distributed and autonomous actors belonging to different organizations. In this paper, we are particularly interested in coordination. We show how the analysis of the interactions among the crisis actors can help discovering meaningful coordination patterns: organizational structures and interaction protocols. To do so, we use workflow mining techniques. Since workflow mining techniques are mainly focused on process (plan) discovery, we show how to extend them to be applied to the organizational and interactional dimensions. We use the Multi-agent paradigm to abstract these two dimensions in a uniform and coherent framework, and we provide a tool for their discovery. The contribution of this paper is three-folds: (i) a proposition of new log-file structure including Agent Communication Language performatives to capture interaction and relationships between actors; (ii) the design and implementation of a tool able to discover and analyze organizational structures and protocols; and (iii) the validation of this tool through a concrete example concerning the cooperative response of the Tunisian government to the terrorist attack of Bardo museum on March 18, 2015.
The purpose of this paper is the description of a model-based approach (called ERGO-CONCEPTOR) to... more The purpose of this paper is the description of a model-based approach (called ERGO-CONCEPTOR) to semiautomated user interface 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.
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