2,484 research outputs found
Analysis domain model for shared virtual environments
The field of shared virtual environments, which also
encompasses online games and social 3D environments, has a
system landscape consisting of multiple solutions that share great functional overlap. However, there is little system interoperability between the different solutions. A shared virtual environment has an associated problem domain that is highly complex raising difficult challenges to the development process, starting with the architectural design of the underlying system. This paper has two main contributions. The first contribution is a broad domain analysis of shared virtual environments, which enables developers to have a better understanding of the whole rather than the part(s). The second contribution is a reference domain model for discussing and describing solutions - the Analysis Domain Model
Core Services in the Architecture of the National Digital Library for Science Education (NSDL)
We describe the core components of the architecture for the (NSDL) National
Science, Mathematics, Engineering, and Technology Education Digital Library.
Over time the NSDL will include heterogeneous users, content, and services. To
accommodate this, a design for a technical and organization infrastructure has
been formulated based on the notion of a spectrum of interoperability. This
paper describes the first phase of the interoperability infrastructure
including the metadata repository, search and discovery services, rights
management services, and user interface portal facilities
Ontology Repositories
The growing use and application of ontologies in the last years has led to an increased interest of researchers and practitioners in the development of ontologies, either from scratch o by reusing existing ones. ..
The OMII Software â Demonstrations and Comparisons between two different deployments for Client-Server Distributed Systems
This paper describes the key elements of the OMII software and the scenarios which OMII software can be deployed to achieve distributed computing in the UK e-Science Community, where two different deployments for Client-Server distributed systems are demonstrated. Scenarios and experiments for each deployment have been described, with its advantages and disadvantages compared and analyzed. We conclude that our first deployment is more relevant for system administrators or developers, and the second deployment is more suitable for usersâ perspective which they can send and check job status for hundred job submissions
Electronic Presentation of Bulgarian Educational Archives: an Ontology-Based Approach
The paper presents an ongoing effort aimed at building an electronic archive of documents issued by
the Bulgarian Ministry of Education in the 40ies and 50ies of the 20th century. These funds are stored in the
Archive of the Ministry of the Peopleâs Education within the State Archival Fund of the General Department of
Archives at the Council of Ministers of Bulgaria. Our basic concern is not the digitization process per se, but the
subsequent organization of the archive in a clear and easily-searchable way which would allow various types of
users to get access to the documents of interest to them. Here we present the variety of the documents which are
stored in the archival collection, and suggestions on their electronic organization. We suggest using ontologies-
based presentation of the archive. The basic benefit of this approach is the possibility to search the collection
according to the stored content categories
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