Re: [OGSA-D-WG] [ogsa-wg] Definition of "data service"
From the Data Architecture glossary: Data sink: A data resource that receives the data copied by a data transfer mechanism from a source. Data Source: A data resource that contains the data to be copied to a sink via a data transfer mechanism. Informally, Data Architecture, and DMI for that matter, use these terms to denote the end points of a data transfer operation.
A data resource is defined as:
An entity (and its associated framework) that provides a data
access mechanism or can act as a source or sink.
(This is what currently on Grid Forge but source/sink really mean data
source/sink).
So, a data resource is the "thing" that both holds data and provides
mechanisms for accessing its contents.
Think of a data resource as something like a relational database or a file
system as we have had for decades while the Data Architecture defines
interfaces (services) that "front" a data resource, making it a
participant in the service oriented architecture being defined by OGSA.
Allen Luniewski
IBM Cross Brand Services
IBM Silicon Valley Laboratory
555 Bailey Ave.
San Jose, CA 95141
408-463-2255
408-930-1844 (mobile)
guru prasad
Currently we're looking at something like the following:
A service that exposes the capabilities or data of one or more data resources within a service-oriented architecture.
I think it should be "the capabilities and data" as opposed to "or". Similarly for the definition below. However, I think the one above is more succinct and thus gets my vote.
or
A service that exposes the capabilities of one or more data resources within a service-oriented architecture. These capabilities might include data access, data transfer or data management.
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Allen Luniewski