Efficiently Managing Context Information for Large-Scale Scenarios

Großmann, Matthias; Bauer, Martin; Hönle, Nicola; Käppeler, Uwe-Philipp; Nicklas, Daniela; Schwarz, Thomas

doi:10.1109/percom.2005.17

Cited by 79 publications

(56 citation statements)

References 16 publications

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“…Another interesting approach to allowing distributed context management based on federating context-aware services is Nexus [13]. Nexus supports heterogeneity among context management systems' context models, i.e.…”

Section: Limitations Of Current Approachesmentioning

confidence: 99%

Jabber-based Cross-Domain Efficient and Privacy-Ensuring Context Management Framework

Jaroucheh¹,

Liu²,

Smith³

2013

IJACSA

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Abstract-inpervasive environments, context-aware applications require a global knowledge of the context information distributed in different spatial domains in order to establish context-based interactions. Therefore, the design of distributed storage, retrieval, and dissemination mechanisms of context information across domains becomes vital. In such environments, we envision the necessity of collaboration between different context servers distributed in different domains; thus, the need for generic APIs and protocol allowing context information exchange between different entities: context servers, context providers, and context consumers. As a solution this paper proposes ubique, a distributed middleware for contextaware computing that allows applications to maintain domainbased context interests to access context information about users, places, events, and things -all made available by or brokered through the home domain server. This paper proposes also a new cross-domain protocol for context management which ensures the privacy and the efficiency of context information dissemination. It has been robustly built upon the Jabber protocol which is a widely adopted open protocol for instant messaging and is designed for near real-time communication. Simulation and experimentation results show that ubique framework well supports robust cross-domain context management and collaboration.

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Section: Limitations Of Current Approachesmentioning

confidence: 99%

Jabber-based Cross-Domain Efficient and Privacy-Ensuring Context Management Framework

Jaroucheh¹,

Liu²,

Smith³

2013

IJACSA

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“…CML provides a graphical notation to formally specify the context requirements of a context-aware application and allows automatic transform to a relational schema to manage the context information data in a database. The Nexus context model [7] with the Augmented World Language (AWML) supports the modeling and management of standardized and extensible context models. It already provides a schema for modeling context of services that became part of the BPM context model.…”

Section: Related Workmentioning

confidence: 99%

“…Since this paper is an extension of [21], the first parts of this section are similar. Fig 1 presents an excerpt of the main classes of the used standard Nexus context model [7]. It consists of generic standardized objects (Spatial Object, Mobile Object) inheriting from basic objects (Nexus Object, NexusDataObject).…”

Section: Context Model For Bpmmentioning

confidence: 99%

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Benefits of Business Process Context for Human TaskManagement

Wieland¹,

Nicklas²,

Leymann³

2011

IJTEF

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Abstract-Context-aware systems adapt their functionality and behavior to the user and his or her situation. To do so, they need context information about the user's environment, e.g., about different kinds of real world objects. Many systems and data models are available for the management of context information. An often neglected but important part of context is the state and context of the applications that users are currently executing. This paper presents the benefits of using the context of workflow-based applications in the area of human task management. We show what kind of new task clients for mobile users are enabled by a context model for business process management and present an implementation of the system.

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“…This approach has been applied in the Nexus framework [12,13] which provides a common context model infused with spatial information to build world models that are distributed across spaces possessing rich context data sources, known as Augmented Areas. The context model is presented as a global object-based ontology for developing interoperable world models.…”

Section: Related Workmentioning

confidence: 99%

A framework for incremental construction of real global smart space applications

Meier

Harrington

Beckmann

et al. 2009

Pervasive and Mobile Computing

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-This article describes a standardised way to build context-aware global smart space applications using information that is distributed across independent (legacy, sensor-enabled, and embedded) systems by exploiting the overlapping spatial and temporal attributes of the information maintained by these systems. The framework supports a spatial programming model based on a topographical approach to modelling space that enables systems to independently define and use potentially overlapping spatial context in a consistent manner and in contrast to topological approaches, in which geographical relationships between objects are described explicitly. This approach is supported by an extensible data model that implicitly captures the relationships between information provided by separate underlying systems and facilitates the incremental construction of global smart spaces since the underlying systems to be incorporated are largely decoupled. The framework has been evaluated using a prototype that integrates legacy systems and context-aware services for multi-modal urban journey planning and for visualising traffic congestion.

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Efficiently Managing Context Information for Large-Scale Scenarios

Cited by 79 publications

References 16 publications

Jabber-based Cross-Domain Efficient and Privacy-Ensuring Context Management Framework

Jabber-based Cross-Domain Efficient and Privacy-Ensuring Context Management Framework

Benefits of Business Process Context for Human TaskManagement

A framework for incremental construction of real global smart space applications

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