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CRIS architecture to support an ERA Brian Matthews. Objective. To support an Integrated European RTD Information System . Needs to support: Researchers, exploiters and decision makers And needs to be: Robust Easy to use Extensible “future proof”. Key Principles.

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CRIS architecture to support an ERA

Brian Matthews

Brian Matthews, euroCRIS, 18/09/03


Objective
Objective

  • To support an Integrated European RTD Information System .

  • Needs to support:

    • Researchers,

    • exploiters and

    • decision makers

  • And needs to be:

    • Robust

    • Easy to use

    • Extensible

    • “future proof”

Brian Matthews, euroCRIS, 18/09/03


Key principles
Key Principles

  • Certain general principles should underpin this.

    • Institutional Independence

    • Common exchange formats

    • Distributed control

    • Multilinguality

    • Easy to use tools

  • Can provide access as a Service

Brian Matthews, euroCRIS, 18/09/03


Institution independence
Institution Independence

  • Institutions should be able to maintain their own research information

  • Institutions keep ownership and can use the information for their own needs.

  • Institutions should be able to use their own internal formats and internal information systems (DB and OS independence).

  • Without these, institutional buy-in will be hard.

Brian Matthews, euroCRIS, 18/09/03


Common exchange formats
Common Exchange Formats

  • A common exchange format (ontology) for expressing data (CERIF)

  • Common APIs onto the local CRIS’s for query and return of information.

  • Local formats related to the common format by well-defined mappings.

Brian Matthews, euroCRIS, 18/09/03


Distributed control
Distributed Control

  • Loose coupling between institutions

  • No overall administration

  • Collection of information at node points for efficiency

  • Periodic update and mirroring

  • Single point of authentication

Brian Matthews, euroCRIS, 18/09/03


Multilinguality
Multilinguality

  • Vital in a European (and wider) context.

  • Multilingual thesauri

  • Multilingual interfaces

  • Multilingual querying and response.

Brian Matthews, euroCRIS, 18/09/03


Easy to use tools
Easy to use tools

  • Don’t demand unfamiliar tools and interfaces upon users

  • Based around a standard web architecture

  • Use Browsers as the Front-end.

Brian Matthews, euroCRIS, 18/09/03


Integration with other repositories
Integration with other repositories

  • As a service component it should allow access to other repositories

    • Library and publication archives

    • Data archives

    • “Grid Portals”

  • Mediate and control combination of services

  • An active component in the GRID.

  • Need to coordinate with other communities

    • Common metadata

    • Common Interfaces

    • Common digital curation problems.

Brian Matthews, euroCRIS, 18/09/03


Key technologies
Key Technologies

  • Preference for Web technologies

    • “open” development

    • Widely available and supported

    • Open source implementations

  • Should also prepare for integration into the GRID

Brian Matthews, euroCRIS, 18/09/03


Key technologies1

Basic Web technologies:

http, HTML, CSS

Fundamental exchange mechanism:

XML, XSLT, XML Schema

Component interfaces:

Web Services (SOAP, WDSL, UDDI?, XACML?, SAML?)

User Preferences

P3P, CC/PP

Knowledge representation and modelling:

RDF, RDF Schema, DAML+OIL (WebOnt)

Generic Querying system:

XML Query? (XSQL?, RQL?)

Programming layer:

Java and Java Servlets

Key Technologies

Brian Matthews, euroCRIS, 18/09/03


Strawman architecture
Strawman Architecture

ERIS broker

CRIS Service

Users

Directory service

ERIS portal

Access control service

Local data

cache

Common metadata

User service

XML Query over http

WS wrapper

Web Service wrapper

WS wrapper

WS wrapper

WS wrapper

Specific metadata

Specific metadata

Specific metadata

Specific metadata

Specific metadata

Raw data

Raw data

Raw data

Raw data

Raw data

Brian Matthews, euroCRIS, 18/09/03


Components
Components

  • Broker

    • Directory Service

    • Metadata Service

    • Query Service

    • Results Service

    • User Service

    • Access control service

  • Distributed query across HTTP

  • Web Service front-end to local CRIS

    • Xml wrapper to produce the right data.

Brian Matthews, euroCRIS, 18/09/03


From here
From here?

  • Service architecture proposed

  • Amalgamate results from different CRIS systems

  • Common exchange format – and Ontologies

  • Common Thesaurus?

  • Local Caching of results?

  • A P2P hierarchy?

Brian Matthews, euroCRIS, 18/09/03


Ercim
ERCIM

  • 15 research institutes in mathematics, comp sci and IT

  • Wide spread across Europe

  • Well connected to science and tech, academia, govnt, industry

  • A pool of expertise

Brian Matthews, euroCRIS, 18/09/03


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