Reconfigurable context-sensitive middleware for pervasive computing

Yau, Stephen S.; Karim, F.; Wang, Weichao; Wang, Bin; Gupta, Sandeep

doi:10.1109/mprv.2002.1037720

Cited by 311 publications

(180 citation statements)

References 30 publications

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“…The SA-RBAC model is used to deal with the situation information by considering the combination of the required credentials of users, and the context information such as location, time, and system resources relevant to the user's access request. In [16], Yau and others have defined the situation as a set of context attributes of users, systems and environments over a period of time affecting future system behavior. Later, Yau and Liu have presented a SituationAware Access Control (SA-AC) based privacy-preserving service matchmaking approach [10].…”

Section: Related Work and Discussionmentioning

confidence: 99%

PO-SAAC: A Purpose-Oriented Situation-Aware Access Control Framework for Software Services

Kayes

Han

Colman

2014

Advanced Information Systems Engineering

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Abstract. Situation-aware applications need to capture relevant context information and user intention or purpose, to provide situation-specific access to software services. As such, a situation-aware access control approach coupled with purpose-oriented information is of critical importance. Existing approaches are highly domain-specific and they control access to services depending on the specific types of context information without considering the purpose. To achieve situation-aware access control, in this paper we consider purpose-oriented situations rather than conventional situations (e.g., user's state). We take situation to mean the states of the entities and the states of the relationships between entities that are relevant to the purpose of a resource access request. We propose a generic framework, Purpose-Oriented Situation-Aware Access Control, that supports access control to software services based on the relevant situations. We develop a software prototype to demonstrate the practical applicability of the framework. In addition, we demonstrate the effectiveness of our framework through a healthcare case study. Experimental results demonstrate the satisfactory performance of our framework.

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Section: Related Work and Discussionmentioning

confidence: 99%

PO-SAAC: A Purpose-Oriented Situation-Aware Access Control Framework for Software Services

Kayes

Han

Colman

2014

Advanced Information Systems Engineering

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“…Reconfigurable Context-Sensitive Middleware [22] provides context-sensitive applications with adaptive object containers (ADCs) for runtime context data acquisition, monitoring and detection. Applications can specify behavior using a contextaware IDL.…”

Section: Related Workmentioning

confidence: 99%

A Middleware for Context-Aware Agents in Ubiquitous Computing Environments

Ranganathan

Campbell

2003

Lecture Notes in Computer Science

184

146

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Abstract. Ubiquitous Computing advocates the construction of massively distributed systems that help transform physical spaces into computationally active and intelligent environments. The design of systems and applications in these environments needs to take account of heterogeneous devices, mobile users and rapidly changing contexts. Most importantly, agents in ubiquitous and mobile environments need to be context-aware so that they can adapt themselves to different situations. In this paper, we argue that ubiquitous computing environments must provide middleware support for context-awareness. We also propose a middleware that facilitates the development of context-aware agents. The middleware allows agents to acquire contextual information easily, reason about it using different logics and then adapt themselves to changing contexts. Another key issue in these environments is allowing autonomous, heterogeneous agents to have a common semantic understanding of contextual information. Our middleware tackles this problem by using ontologies to define different types of contextual information. This middleware is part of Gaia, our infrastructure for enabling Smart Spaces.

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“…The situation is defined not only by contextual factors but also by user activities, personal status, requirements, emotions, and social behaviours. Situation-awareness means "the ability to capture and use the relationships among multiple contexts and actions over a period of time" (Yau et al, 2002). SitComp describes socio-technical systems in which situations of use and context play a central role in the use of computers (Beaudouin-Lafon and Mackay, 2000).…”

Section: Introductionmentioning

confidence: 99%

Middleware and architectures for space-based and situated computing

Cristea

Dobre

Costan

et al. 2011

IJSSC

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Situated computing is an actual research area that gathers the knowledge and investigation in mobile, wearable, ubiquitous and augmented computing. The aim is to sustain systems that collect information about contexts and user actions over a period of time and supply it to applications that dynamically adapt to context changes. Situated computing systems have various architectures, but most of them include a middleware layer that supports equipment with limited computing resources and offers functionalities that simplify applications development, deployment, execution, and maintenance. Middleware and architectures are the focus of this paper, which presents the main concepts, research results, and future trends in middleware for situated computing. Service oriented, event driven, agent-based, and peer-to-peer architectures are discussed. Middleware issues for situated computing, embedded devices, autonomic space management, proactive services, context awareness, and smart spaces are tackled as well.

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Reconfigurable context-sensitive middleware for pervasive computing

Cited by 311 publications

References 30 publications

PO-SAAC: A Purpose-Oriented Situation-Aware Access Control Framework for Software Services

PO-SAAC: A Purpose-Oriented Situation-Aware Access Control Framework for Software Services

A Middleware for Context-Aware Agents in Ubiquitous Computing Environments

Middleware and architectures for space-based and situated computing

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