Posts Tagged ‘sws’
OASIS SWS: Search Web Services
We have discussed in the previous post SRU as a remote search protocol, and how it seeks to be broadly applicable by abstracting search indexes away from their native metadata formats. The new OASIS SWS (Search Web Services) standard, which is intended as the successor to SRU, goes further: it also abstracts search parameters away from the search protocol. SWS pursues interoperability between different search protocols, by abstracting to a common protocol model, of which actual search protocols are treated as bindings.
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SRU and SWS
We have mentioned in previous posts that our work with IMS LODE, among other goals, sought to profile search across different e-learning repositories, so as to be interoperable. But there is a diversity of schemas for educational metadata which such search needs to traverse (at a minimum, IEEE LOM, Dublin Core for Education, and ISO MLR), and an even greater diversity of profiles for those schemas. If different repositories use different schemas, how can search across multiple different repositories remain interoperable?
The solution we have adopted is to use a search protocol, SRU, which abstracts away from the specific schemas used in a domain, to the search terms of interest across the domain.
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