Engineering Context-Adaptive UIs for Task-Continuous Cross-Channel Applications
The user interfaces (UIs) of interactive systems become increasingly complex since many heterogeneous and dynamically changing contexts of use (platform, user, and environment) have to be supported. Developing UIs for such interactive systems often requir
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Abstract. The user interfaces (UIs) of interactive systems become increasingly complex since many heterogeneous and dynamically changing contexts of use (platform, user, and environment) have to be supported. Developing UIs for such interactive systems often requires features like UI adaptivity and seamless task-continuity across devices, demanding for sophisticated UI development processes and methods. While existing engineering methods like human-centered design process and model-based UI development approaches serve as a good starting point, an integrated engineering process addressing specific requirements of adaptive UIs supporting task-continuity across different devices is not fully covered. Therefore, we present a model-based engineering approach for building context-adaptive UIs that enable a personalized, flexible and task-continuous usage of cross-channel applications. Our engineering approach supports modeling, transformation and execution of contextadaptive UIs. To show the feasibility of our approach, we present an industrial case study, where we implement context-adaptive UIs for a cross-channel banking application. Keywords: Model-based development · UI adaptation · Multi-device UI development · Cross-channel applications · Task-continuity
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Introduction
Today users are surrounded by a broad range of networked interaction devices (e.g. smartphones, smartwatches, tablets, terminals etc.) for carrying out their everyday activities. Due to the growing number of such interaction devices, new possible interaction techniques (e.g. multi-touch or tangible interaction) and distributed user interfaces transcending the boundaries of a single device, software developers and user interface designers are facing new challenges. As the user interfaces of interactive systems become increasingly complex since many heterogeneous contexts of use (platform, user, and environment) have to be supported, This work is based on “KoMoS”, a project of the “it’s OWL” Leading-Edge Cluster, partially funded by the German Federal Ministry of Education and Research (BMBF). c IFIP International Federation for Information Processing 2016 Published by Springer International Publishing Switzerland 2016. All Rights Reserved C. Bogdan et al. (Eds.): HCSE 2016/HESSD 2016, LNCS 9856, pp. 281–300, 2016. DOI: 10.1007/978-3-319-44902-9 18
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E. Yigitbas and S. Sauer
it is no longer sufficient to provide a single “one-size-fits-all” user interface. The problem increases even more if we consider dynamic changes in the context of use. In this case, allowing flexible and natural interaction with such devices requires additional features like UI adaptivity to automatically react to the changing context of use parameters at runtime and task-continuity for supporting a seamless handover between different devices. For illustrating the problem, we introduce a real world example scenario which is derived from the banking domain. While customers accessed banking services solely via isolated channels (through banking personnel or ATM) in the past, usi
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