The Java Context Awareness Framework (JCAF) – A Service Infrastructure and Programming Framework for Context-Aware Applications

Bardram, Jakob E.

doi:10.1007/11428572_7

Cited by 235 publications

(179 citation statements)

References 28 publications

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“…The context-awareness infrastructure is based on the Java Context-Awareness Framework (JCAF) [4]. In the deployment we are using JCAF for modeling entities and context information at the surgical ward, and for creating different types of context monitors.…”

Section: Context-awareness Infrastructurementioning

confidence: 99%

Experiences from Real-World Deployment of Context-Aware Technologies in a Hospital Environment

Bardram

Hansen

Mogensen

et al. 2006

Lecture Notes in Computer Science

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Abstract. Context-aware computing is a central concept in ubiquitous computing and many suggestions for context-aware technologies and applications have been proposed. There is, however, little evidence on how these concepts and technologies play out in a real-world setting. In this paper we describe and discuss our experiences from an ongoing deployment of a suite of context-aware technologies and applications in a hospital environment, including a context-awareness infrastructure, a location tracking system, and two context-aware applications running on interactive wall displays and mobile phones. Based on an analysis of the use of these systems, we observe that many of the ideas behind context-aware computing are valid, and that the context-aware applications are useful for clinicians in their work. By reflecting on the nature of the designed context-aware technologies, we present a model which states that the triggering of context-awareness actions depend upon the accuracy of the sensed context information, the degree to which you know which action to perform in a given situation, and the consequence of performing the action.

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Section: Context-awareness Infrastructurementioning

confidence: 99%

Experiences from Real-World Deployment of Context-Aware Technologies in a Hospital Environment

Bardram

Hansen

Mogensen

et al. 2006

Lecture Notes in Computer Science

Self Cite

View full text Add to dashboard Cite

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“…Approaches spawn mainly in the form of frameworks (e.g., JCAF [6]), middleware (e.g., MobiPADS [7], MidCASE [8], CARISMA [9]), and languages (e.g., ContextL [10], Subjective-C [11], EventCJ [12]). …”

Section: Related Workmentioning

confidence: 99%

A Domain-Specific Language for the Specification of Adaptable Context Inference

Diniz

Cardoso²,

Ferreira

2011

2011 IFIP 9th International Conference on Embedded and Ubiquitous Computing

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Abstract-Context-aware mobile applications can benefit from context inference adaptation based on run-time operating conditions, such as battery life or sensor availability. Developing applications with such adaptable behavior, however, is notoriously cumbersome, as developers need to deal with low-level system interfacing and programming issues. In this paper we describe a domain-specific language (DSL) and a middleware infrastructure to support the specification, deployment and maintenance of run-time adaptable context inference processes. We illustrate the benefits of our approach via a case study, highlighting the new abstractions that facilitate the specification of adaptable behavior using different algorithms and the corresponding varying parameter settings, with a specific goal of minimizing the energy while maintaing acceptable end-application performance and accuracy.

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“…Context has been recognized as being a key concept for ubiquitous applications [4], [9]. Dey [4] defines context to be "any information that can be used to characterize the situation of an entity, where an entity can be a person, place, or physical or computational object".…”

Section: Related Workmentioning

confidence: 99%

An Architecture for Ubiquitous Applications

2007

Proceedings of the 1st International Joint Workshop on Wireless Ubiquitous Computing

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Abstract. This paper proposes a framework intended to help developers to create ubiquitous applications. We argue that context is a key concept in ubiquitous computing and that, by nature, a ubiquitous application is distributed and needs to be easily deployable. Thus we propose an easy way to build applications made of numerous modules spread in the environment and interconnected. This network of modules forms a permanently running system. The control (installation, update, etc.) of such a module is obtained by a simple, possibly remote, command and without requiring to stop the whole system. We ourselves used this architecture to create a ubiquitous application, which we present here as an illustration.

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The Java Context Awareness Framework (JCAF) – A Service Infrastructure and Programming Framework for Context-Aware Applications

Cited by 235 publications

References 28 publications

Experiences from Real-World Deployment of Context-Aware Technologies in a Hospital Environment

Experiences from Real-World Deployment of Context-Aware Technologies in a Hospital Environment

A Domain-Specific Language for the Specification of Adaptable Context Inference

An Architecture for Ubiquitous Applications

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