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Portfolio SIG, Manchester, 21 June 2007

Portfolio Interoperability

Scott Wilson

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This work is licensed under a Attribution-NonCommercial-ShareAlike 2.0 licence

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There is no right or wrong answer!

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The Scenarios

• Institutional system <-> institutional system (e.g FE -> HE)• Institutional system <-> employer system• Institutional system <-> personal system• Institutional system <-> govt. agency system• Personal system <-> personal system• Personal system <-> employer system• Interaction with admissions process, recruitment process,

assessment process, accreditation process• Etc.

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Many kinds of (data) interoperability

• identities• profiles & preferences• permissions• content• structures & relationships• official competencies, credits etc

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The transfer scenario - layers

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Personal -> Institution Scenario

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And back the other way

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Identities

• Provisioning– SPML– IMS Enterprise– DirXML/DSML

• Distributed identity– OpenID– CardSpace– Shibboleth

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Profiles and preferences

• FOAF

• vCard

• OpenID SRP

• HR-XML (CV)

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Permissions

• No easy way to do this today

• XACML?

• Proprietary permissions negotiation?

• Inference via FOAF groups?

• A new language?

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Content: The Big Five

• (X)HTML• Atom/RSS• UBL• ODF• DocBook

+ also things like AAC, MP3, MPEG, QT, WMV, SVG, PDF, LaTEX, MS Word, TEI (the list goes on…)

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Structure

• Atom/RSS/etc for simple structures• RDF+OWL for complex structuring

– isPartOf– isVersionOf– Inheritance– Specialised (e.g. Leap2.0 relations)

• XML Topic Maps• Regular links• IMS Content Packaging/RAMLET/MPEG-21

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Official competencies and credits

• HR-XML

• MIAP Learner Achievement Record

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Roll Your Own XML Spec

• “neither easy nor fun”

• “pass/fail ratio”

• “software pain”

• “restating Metcalfe”

• “opportunity cost”

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Interoperability: scope

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Open APIs

• Flickr API

• YouTube API

• Facebook API

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Public ‘middleware’ services as sharing intermediaries• Portfolio -> Slideshare/Flickr/Facebook/EduSpaces -> employer

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What’s supported today?

• Elgg: Atom, RSS, FOAF, various content formats

• Moodle: Atom, RSS, various content formats

• Employer HR systems: MS Word, HR-XML(?)

• PebblePad: IMS CP, HR-XML Europass, Shibboleth, RSS, UKLEAP, IMS EP

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Never, ever, ever implement IMS EP

Look, just don’t.

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Security

• User choice is important - user control of access

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Adopters dilemma

• Its not much fun being the only one who supports a standard

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• scott.bradley.wilson@gmail.com

• http://www.cetis.ac.uk/members/scott