European Schoolnet

Building an SQI Gateway for CELEBRATE

David Massart, European Schoolnet

ProLearn Workshop

Bonn -- Apr. 30, 2004

European Schoolnet

Outline

• Celebrate European Learning Network (ELN)

• Federated Search

• The Gateway is an ELN Client

• What We Plan To Support

• Current Status

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European Learning Network

• A network of e-learning systems (or client)

• Built around a Brokerage System (BS) that rules exchanges between clients

• Capable of interoperability by searching and exchanging the LOs contained in their repositories

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ELN Client

• A Java library

• Hides the complexity of client-BS communication (e.g., JMS, SOAP) behind a simplified API

• Let clients focus on message content

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Federated Search

Consists for a client end-user (e.g. a teacher or pupil using an ELN LMS or LCMS) in querying all the metadata repositories currently available on the ELN for references to LOs matching his/her search criteria.

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Federated Search

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LOM Query

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Checked LOM Query

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LOM Query Result 1

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Checked LOM Query Result 1

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LOM Query Result 2

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Checked LOM Query Result 2

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LOM Query Result 3

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Checked LOM Query Result 3

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SQI Gateway

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What We Plan To Support

• In terms of metadata:– CELEBRATE Application Profile Binding– IEEE LOM Binding

• In terms of query languages:– CELEBRATE Query Language– VSQL (Very Simple Query Language)– S²QL (Simple School Query Language)

[S²QL = VSQL + Age Range + Language]

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What We Plan To Support (Cont.)

Asynchronous part of the API– Query configuration (setQueryLanguage,

setResultsFormat, ...)– Results management (getResourceDescription)– Asynchronous query (setSourceLocation,

queryResultListener)– SessionManagement (createSession,

createAnonymousSession, ...)

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Current Status

• Testing: Integration JWSDP-1.3 / elnClient (done)

• Analysis: In progress (end of April)

• Implementation: Real gateway development will start in May

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Thank You