A messaging API for inter-widgets communication

Sire, Stéphane; Paquier, Micaël; Vagner, Alain; Bogaerts, Jérôme

doi:10.1145/1526709.1526884

Cited by 17 publications

(8 citation statements)

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“…Although a considerable amount of work exists on mashups by composition due to popularity of web service composition, e.g., [2,[5][6][7]25], there is limited work on mashups by orchestration which we address in what follows. Regarding widget interoperability, in the current literature, the trend is towards inter-widget communication (IWC) [13,[26][27][28][29] in which basically an event is delivered to relevant widgets (i.e., unicast, multicast, or broadcast) whenever a user performs an action inside a widget. Multicast and broadcast are the basis of IWC.…”

Section: Evaluation and Related Workmentioning

confidence: 99%

Mashups and widget orchestration

Soylu

Wild

Mödritscher

et al. 2011

Proceedings of the International Conference on Management of Emergent Digital EcoSystems

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The mashup era has emerged in response to the challenge of integrating existing services, data sources, and tools to generate new applications. Mashups are usually realized either through a seamless integration, in which only the resulting application is known by the end-users, or through integration of original applications, data sources, and tools, particularly in terms of widgets, into the same graphical space, in which participating applications and data sources are identifiable by the end-users. The former composes a unified functionality or data presentation/source from the original sources. The latter generates a digital environment in which participating sources exist as individual entities, but the true integration can only be realized through enabling widgets to be responsive to the events happening in each other. We call such an integration widget orchestration. In this paper, we provide a holistic view on the mashup era and a theoretical grounding for widget-based digital environments, we elaborate on key challenges for realizing such environments and (semi-)automatic widget orchestration, and we introduce our solution strategies. We identified following challenges: widget interoperability, user-behavior mining, and infrastructure. We introduce functional interfaces (FWI) for application interoperability, exploit semantic web technologies for data interoperability, and investigate the possibility of employing workflow/process mining techniques, along with Petri nets as a formal ground, for user-behavior mining. We outline a reference platform and architecture, compliant with our strategies, to foster re-usability of widgets and development of standardized widgetbased environments. We have implemented a prototype for a Widget-based Personal Learning Environment (WIPLE) for foreign language learning in order to demonstrate the feasibility of our solution strategies, framework, and architecture.

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Section: Evaluation and Related Workmentioning

confidence: 99%

Mashups and widget orchestration

Soylu

Wild

Mödritscher

et al. 2011

Proceedings of the International Conference on Management of Emergent Digital EcoSystems

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“…Cáceres, 2011), the use of widgets for UI mashups and personal environments gained attraction (e.g. Govaerts et al , 2011; Nelkner, 2009; Sire et al , 2009; Soylu, Wild, Mödritscher, Desmet, Verlinde and De Causmaecker, 2011). Yet, first examples are proprietary such as Yahoo widgets, Google gadgets, Open Social gadgets etc.…”

Section: Related Work and Discussionmentioning

confidence: 99%

Mashups by orchestration and widget‐based personal environments

Soylu

Mödritscher

Wild

et al. 2012

Program

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Purpose -Mashups have been studied extensively in the literature; nevertheless, the large body of work in this area focuses on service/data level integration and leaves UI level integration, hence UI mashups, almost unexplored. The latter generates digital environments in which participating sources exist as individual entities; member applications and data sources share the same graphical space particularly in the form of widgets. However, the true integration can only be realized through enabling widgets to be responsive to the events happening in each other. The authors call such an integration "widget orchestration" and the resulting application "mashup by orchestration". This article aims to explore and address challenges regarding the realization of widget-based UI mashups and UI level integration, prominently in terms of widget orchestration, and to assess their suitability for building web-based personal environments. Design/methodology/approach -The authors provide a holistic view on mashups and a theoretical grounding for widget-based personal environments. The authors identify the following challenges: widget interoperability, end-user data mobility as a basis for manual widget orchestration, user behavior mining -for extracting behavioral patterns -as a basis for automated widget orchestration, and infrastructure. The authors introduce functional widget interfaces for application interoperability, exploit semantic web technologies for data interoperability, and realize end-user data mobility on top of this interoperability framework. The authors employ semantically enhanced workflow/process mining techniques, along with Petri nets as a formal ground, for user behavior mining. The authors outline a reference platform and architecture that is compliant with the authors' strategies, and extend W3C widget specification respectively -prominently with a communication channel -to foster standardization. The authors evaluate their solution approaches regarding interoperability and infrastructure through a qualitative comparison with respect to existing literature, and provide a computational evaluation of the behavior mining approach. The authors realize a prototype for a widget-based personal learning environment for foreign language learning to demonstrate the feasibility of their solution strategies. The prototype is also used as a basis for the end-user assessment of widget-based personal environments and widget orchestration. Findings -The evaluation results suggest that the interoperability framework, platform, and architecture have certain advantages over existing approaches, and the proposed behavior mining techniques are adequate for the extraction of behavioral patterns. User assessments show that widget-based UI mashups with orchestration (i.e. mashups by orchestration) are promising for the creation of personal environments as well as for an enhanced user experience. Originality/value -This article provides an extensive exploration of mashups by orchestration and their role in the creation of pers...

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“…Instead of 'hard-wiring' widgets with each other (Sire et al 2009), all widgets within a PLE are notified of all events and then decide autonomously to react accordingly. If the widget acts upon the received event, a receipt is sent back.…”

Section: Inter-widget Communicationmentioning

confidence: 99%

Lessons Learned from the Development of the ROLE PLE Framework

Govaerts

Verbert

Bogdanov

et al. 2014

Responsive Open Learning Environments

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Within the ROLE European research project, an interoperability framework has been developed to support self-regulated learning and to enable learners and teachers to create personal learning environments (PLEs). This framework enables learners to assemble tools, services and resources together to create their own custom learning environment. This chapter discusses the overall architecture, the specific components of this architecture and the platforms in which we have integrated the ROLE framework. Additionally, we share the lessons learned from the design and development. Furthermore, we discuss our experience with the

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A messaging API for inter-widgets communication

Cited by 17 publications

References 0 publications

Mashups and widget orchestration

Mashups and widget orchestration

Mashups by orchestration and widget‐based personal environments

Lessons Learned from the Development of the ROLE PLE Framework

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