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Research groups and software companies have developed a number of multimedia collaboration tools such as Access Grid and Vannotea to archive collaborative objects such as audiovisual communications and digital annotations. Most of these tools are designed to process multimedia data streams, and it is not easy for their users to extend or modify them to support other types of data streams such as those...
Independent grid projects have developed their own solutions to information services. These solutions are not interoperable with each other, target vastly different systems and address diverse sets of requirements. To address these challenges, we designed a novel architecture for a grid information service that provides unification, federation and interoperability of major grid information services...
Integrating sensors and grid computing provides a way to gather, process and model real-time information from the environment for informed decision-support and timely actions, proactive or reactive, to events. We create a collaborative sensor grid framework to support the integration of a sensor grid with collaboration and other grids. The framework includes a grid builder tool for discovering and...
We describe a new integration model that uses tools and services for supporting Web 2.0. This integration model defines a structure for a missing feature of Web 2.0. The model integrates a number of existing online tools having a common data model and aims to develop added-value community-building integrated environments. We discuss the overall design, architecture and the components of the integration...
The service-oriented architecture has come a long way in solving the problem of reusability of existing software resources. Grid applications today are composed of a large number of loosely coupled services. While this has opened up new avenues for building large, complex applications, it has made the management of the application components a nontrivial task. Use of services existing on different...
Grid computing is an emerging technology one of whose main focuses is the coordinated resource sharing among dynamic groups of individuals, institutions and resources. In collaborative Grid environments, data and system consistency play a crucial role for the correct functioning of the system. In this paper we propose a novel event-based consistency model and discuss the implementation and integration...
Management in distributed systems has gained much importance in recent years. With the increasing complexity of applications, there is a need for effective management of components of the application. As application components span different administrative domains, differing security policies restrict access to these components. The problem gets more complicated in a dynamic environment where application...
As Web services have matured they have been substantially leveraged within the academic, research and business communities. An exemplar of this is the realignment, last year, of the dominant grid application framework - Open Grid Services Infrastucture (OGSI) - with the emerging consensus within the Web services community. Reliable messaging is an important component within the Web services stack...
NaradaBrokering has been developed as the messaging infrastructure for collaboration, peer-to-peer, and Grid applications. The value of NaradaBrokering in the context of Grid and Web Services has been clear for some time. NaradaBrokering-combined with further extensions to, and testing of, its existing capabilities - can also take advantage of the maturing of Web Service standards and specifications...
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