TY  - CONF
T1  - Managing the transition from OBO to OWL: The COBrA-CT Bio-Ontology Tools
T2  - UK e-Science Al l Hands Meeting 2007
Y1  - 2007
A1  - S. Aitken
A1  - Y. Chen
KW  - Bio-ontology, Grid, OBO, OWL
AB  - This paper presents the COBrA-CT ontology tools, which include an ontology server database and  version manager client tool for collaborative ontology development, and an editor for bio-ontologies that are represented in the Web Ontology Language (OWL) format. The ontology server  uses OGSA-DAI Grid technology to provide access to the ontology server database. These tools  implement the agreed standard for representing Open Biomedical Ontologies (OBO) in OWL and  interoperate with other tools developed for this standard. Such tools are essential for the uptake of  OWL in the biomedical ontology community.
JF  - UK e-Science Al l Hands Meeting 2007
CY  - Nottingham, UK
ER  - 

TY  - CONF
T1  - Transaction-Based Grid Database Replication
T2  - UK e-Science Al l Hands Meeting 2007
Y1  - 2007
A1  - Y. Chen
A1  - D. Berry
A1  - P. Dantressangle
KW  - Grid, Replication, Transaction-based, OGSA-DAI
AB  - We present a framework for grid database replication. Data replication is one of the most useful  strategies to achieve high levels of availability and fault tolerance as well as minimal access time in  grids. It is commonly demanded by many grid applications. However, most existing grid replication  systems only deal with read-only files. By contrast, several relational database vendors provide  tools that offer transaction-based replication, but the capabilities of these products are insufficient to  address grid issues. They lack scalability and cannot cope with the heterogeneous nature of grid  resources.  Our approach uses existing grid mechanisms to provide a metadata registry and to make initial  replicas of data resources. We then define high-level APIs for managing transaction-based  replication. These APIs can be mapped to a variety of relational database replication mechanisms  allowing us to use existing vendor-specific solutions. The next stage in the project will use OGSA-  DAI to manage replication across multiple domains. In this way, our framework can support  transaction-based database synchronisation that maintains consistency in a data-intensive, large-  scale distributed, disparate networking environment.
JF  - UK e-Science Al l Hands Meeting 2007
CY  - Nottingham, UK
ER  -