Authors:
Vassiliki Koufi
;
Flora Malamateniou
and
George Vassilacopoulos
Affiliation:
University of Piraeus, Greece
Keyword(s):
Grid portal application, Process, Role-based access control (RBAC), xoRBAC, Context.
Related
Ontology
Subjects/Areas/Topics:
Artificial Intelligence
;
Biomedical Engineering
;
Cloud Computing
;
Collaboration and e-Services
;
Complex Systems Modeling and Simulation
;
Confidentiality and Data Security
;
Data Engineering
;
e-Business
;
e-Health
;
Enterprise Information Systems
;
Health Information Systems
;
Integration/Interoperability
;
Interoperability
;
Knowledge Management and Information Sharing
;
Knowledge-Based Systems
;
Ontologies and the Semantic Web
;
Platforms and Applications
;
Sensor Networks
;
Simulation and Modeling
;
Software Agents and Internet Computing
;
Software and Architectures
;
Symbolic Systems
Abstract:
Healthcare is an increasingly collaborative enterprise involving a broad range of healthcare services provided by a number of geographically distributed and organizationally disparate healthcare providers. Grid technology has emerged as an integration infrastructure for shared and coordinated use of diverse data resources residing in the healthcare settings of a health district. Moreover, healthcare processes can be formed as compositions of web services that use grid database services to provide integrated healthcare information thus improving healthcare quality. Further improvement can be achieved by means of Grid portal applications developed on a wireless and mobile infrastructure as they provide to ubiquitous and pervasive access to healthcare processes at the point of care. In such environments, the ability to provide an effective access control mechanism that meets the requirement of the least privilege principle is essential. Adherence to the least privilege principle require
s continuous adjustments of user permissions in order to adapt to the current situation. This paper presents an access control architecture for HDGPortal, a Grid portal application which provides access to workflow-based healthcare processes using wireless Personal Digital Assistants. The proposed architecture utilizes the xoRBAC component, which provides a role-based access control service that enables the enforcement of fine-grained context-dependent access control policies via context constraints. In particular, xoRBAC is integrated in our process-oriented healthcare environment which is build on top of a Grid infrastructure and is accessible through HDGPortal. Thus, the risk of compromising information integrity during task executions is reduced.
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