the current set of temporal operators is insufficient to make effective use of taskmodels as specifications for userinterfaces. Moreover, the predominant monolithic task tree structure does not scale well for sizabl...
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ISBN:
(纸本)9783540772217
the current set of temporal operators is insufficient to make effective use of taskmodels as specifications for userinterfaces. Moreover, the predominant monolithic task tree structure does not scale well for sizable applications. In order to overcome these shortcomings, a small collection of practical extensions for taskmodels is proposed. In particular, we define new temporal operators (stop, non-deterministic choice, deterministic choice and instance iteration), concepts in support of modularization and a high-level task diagram notation. Finally, we introduce a new concept for expressing cooperative taskmodelsthat distinguishes between different roles as well as between actors fulfilling these roles.
Modelling creative tasks is a complex activity, yet comprehensive models are needed in order to better understand creativity, and the process of generating creative artefacts. Research on creativity, and how to design...
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ISBN:
(纸本)9783540772217
Modelling creative tasks is a complex activity, yet comprehensive models are needed in order to better understand creativity, and the process of generating creative artefacts. Research on creativity, and how to design useful, usable and engaging creativity support tools, has been one focus of HCI in the last decade. In the present paper we briefly overview selective models of creativity, and distinguish between them on a number of factors. We then outline problems in modelling creative processes in general, and in attempting to create relationships and correspondences between current creativity modelling approaches, in particular. Finally, we consider the role an analytical structure, and task-based models, might play in advancing the state of the art.
the introduction of new technologies leads to a more and more complex interactive systems design. In order to describe the future interactive system, the human computer interaction (HCI) domain uses specific models an...
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ISBN:
(纸本)9783540772217
the introduction of new technologies leads to a more and more complex interactive systems design. In order to describe the future interactive system, the human computer interaction (HCI) domain uses specific models and tools. In another way, the Model Driven Engineering (MDE) approach has been proposed in software engineering domain in order to provide techniques and tools for dealing withmodels in an automated way. MDE approach is based on models, meta-models, models transformation and models weaving and aims to produce productive models, i.e. models concentrated on their generative power. Considering these two domains and the already existing HCI works in MDE, the goal of this paper is to understand actual HCI design needs and to study how MDE tools can support HCI needs. As a first response, it proposes a survey of existing MDE tools in regards to HCI model management.
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 usertasks modeling...
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ISBN:
(纸本)9783540772217
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 usertasks 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 withtasks 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.
For many years, tailorability has been identified as a very important property of system design in order to take care of the emerging users needs towards their working environments. In the same time component-based ap...
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ISBN:
(纸本)9783540772217
For many years, tailorability has been identified as a very important property of system design in order to take care of the emerging users needs towards their working environments. In the same time component-based approaches have been revealed as an interesting solution for tailorability, allowing dynamic integration of components in global environments supporting specific tasks. However, component technologies still face some drawbacks mainly due to a semantic problem. In order to palliate these lacks we propose in this paper a new solution that tends to merge tasks models, from the HCI research field, and existing component models. It particularly consists in a new design approach - the task Oriented (TO) approach - supported by STOrM, a tool dedicated to the creation and manipulation of task Oriented Components (TOCs).
Model-driven userinterface development environments and their associated methodologies have evolved over time to become more explicit, flexible, and reusable but they still lack to reach a level that allows tailoring...
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ISBN:
(纸本)9783540772217
Model-driven userinterface development environments and their associated methodologies have evolved over time to become more explicit, flexible, and reusable but they still lack to reach a level that allows tailoring a method to the reality of software development organizations and their projects. In order to address this shortcoming, method engineering provides strategies to define and tailor software engineering methods. they should address any usability concerns, which are primordial for the integration of model-driven userinterface development methods in the competitive reality of software organizations. To address the issues of explicitly defining a flexible method, we defined a strategy based on method engineering for model-driven userinterface development that uses usability goals as a starting point. Withthe application of this strategy, we aim to help method engineers executing the method with more efficiency when defining or tailoring methods and facilitate the application of model-based userinterface development methods in software organizations.
the development of Collaborative Systems implies taking into account not only a greater number of users but also the interactions among them to accomplish complex tasks. Besides, the nature of these tasks is different...
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ISBN:
(纸本)9783540772217
the development of Collaborative Systems implies taking into account not only a greater number of users but also the interactions among them to accomplish complex tasks. Besides, the nature of these tasks is different from traditional tasks considered in mono-user systems. theses differences justify the need to tackle the task modelling for collaborative systems in a different way than traditionally, considering the special features that this kind of systems have. In this paper we propose a conceptual model to describe tasks and group tasks for multi-user systems in order to make a precise characterization. this characterization is applied to a simple example to show its applicability.
designing and exploring multimodal interaction techniques, such as those used in virtual environments, can be facilitated by using high-level notations. Besides task modelling, notations have been introduced at the di...
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ISBN:
(纸本)9783540772217
designing and exploring multimodal interaction techniques, such as those used in virtual environments, can be facilitated by using high-level notations. Besides task modelling, notations have been introduced at the dialog level such as our notation NiMMiT. For advanced interaction techniques, there is not yet an established approach to decide when to stop detailing the task model and continue modelling at the dialog level. Also, context-awareness is usually introduced at the task level and not at the dialog level. We show that this might cause an explosion in the amount of dialog states in situations where context-aware multimodal interaction is used in one and the same task. therefore, we propose an approach which attempts to introduce contextual knowledge at the dialog level where transitions are chosen upon context information. We validate our approach in a case study from which we conclude that the augmented notation is easy to use and successfully introduces context at the dialog level.
Recently, industry has adopted multimodal, context-aware applications. However, addressing various modalities on heterogeneous platforms implies a demanding development effort. therefore, we present a task-centric met...
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ISBN:
(纸本)9783540772217
Recently, industry has adopted multimodal, context-aware applications. However, addressing various modalities on heterogeneous platforms implies a demanding development effort. therefore, we present a task-centric methodology and a tool chain leveraging the development of adaptive multimodal applications. In order to improve efficiency the tool chain is based on the Model Driven Architecture approach emphasizing two key principles: model-to-model transformations and tool integration.
Activity representations are proposed as an extension to traditional taskmodels. Basically, an activity representation describes fragments of knowledge about several tasks and how to interleave or merge them. Knowled...
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ISBN:
(纸本)9783540772217
Activity representations are proposed as an extension to traditional taskmodels. Basically, an activity representation describes fragments of knowledge about several tasks and how to interleave or merge them. Knowledge about single tasks is spread over several representations at different levels of abstraction. Lower-level models are more ephemeral and help people to organise their day-to-day activities. On the one hand, their creation is supported by more stable representations reflecting goals, activity rhythms, domain knowledge etc. On the other hand, situated action is necessary to create such (task) knowledge. We show that higher-order activity representations provide a better explanation of some task-related aspects than monolithic single taskmodels. For example, they support re-/on-the-fly planning and contribute to dispel the belief in complete and consistent task descriptions. the paper focuses on task redefinition, task grouping and polymotivated actions, activity spaces, goal elaboration, and the interplay between habits and learning. Some conclusions for interaction design are given.
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