Organic.Edunet Nikos Palavitsinis Greek Research & Technology - - PowerPoint PPT Presentation

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Organic.Edunet Nikos Palavitsinis Greek Research & Technology - - PowerPoint PPT Presentation

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Organic.Edunet Nikos Palavitsinis Greek Research & Technology Network TERENA TF Media Meeting 18-19 March, 2010, Athens, Greece Structure Introduction Organic.Edunet Architecture Metadata AP Tools (portal and confolio

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TERENA TF Media Meeting 18-19 March, 2010, Athens, Greece

Organic.Edunet

Nikos Palavitsinis

Greek Research & Technology Network

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TERENA TF Media Meeting 18-19 March, 2010, Athens, Greece

Structure

  • Introduction
  • Organic.Edunet Architecture
  • Metadata AP
  • Tools (portal and confolio demo)
  • Quality Issues
  • Challenges
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TERENA TF Media Meeting 18-19 March, 2010, Athens, Greece

I n a nutshell…

A Multilingual Federation of Learning Repositories with Quality Content for the Awareness and Education of European Youth about Organic Agriculture and Agroecology

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TERENA TF Media Meeting 18-19 March, 2010, Athens, Greece

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Objectives ( 1 / 5 )

  • Support stakeholders producing

content about OA & AE

  • Describe according to multilingual,

standard-complying metadata

  • Publish in online federation of

learning repositories

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TERENA TF Media Meeting 18-19 March, 2010, Athens, Greece

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Objectives ( 2 / 5 )

  • Deploy a multilingual online

environment on top of the online federation of repositories

  • To facilitate end-users’ search, retrieval,

access and use of learning resources

the Organic.Edunet W eb portal

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TERENA TF Media Meeting 18-19 March, 2010, Athens, Greece

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Objectives ( 3 / 5 )

  • Study educational scenarios to support

the teaching of OA & AE relevant topics

  • Use Organic.Edunet Web portal to find

learning resources in the repositories

  • Targeted user organisations
  • High-schools
  • Agricultural universities
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TERENA TF Media Meeting 18-19 March, 2010, Athens, Greece

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Objectives ( 4 / 5 )

  • Involve various European schools &

universities to evaluate project results

  • Focused pilot trials within Organic.Edunet

partner institutions

  • Open validation events within

Organic.Edunet affiliated institutions

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TERENA TF Media Meeting 18-19 March, 2010, Athens, Greece

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Objectives ( 5 / 5 )

  • Create organisational structures to

support the sustainability of project results

  • Reinforce the cooperation of stakeholders

in the OA & AE content area

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TERENA TF Media Meeting 18-19 March, 2010, Athens, Greece

Organic.Edunet Architecture

To make a long story short…

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TERENA TF Media Meeting 18-19 March, 2010, Athens, Greece

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TERENA TF Media Meeting 18-19 March, 2010, Athens, Greece

software reuse

  • existing software components adapted,

extended, integrated

  • S

CAM (backend) repository

  • S

HAME metadat a editor

  • Confolio portfolio Web frontend
  • LOMR semantic repository & search
  • CollaFiS

collaborative filtering service

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TERENA TF Media Meeting 18-19 March, 2010, Athens, Greece

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TERENA TF Media Meeting 18-19 March, 2010, Athens, Greece

SHAME Editor + Confolio Repositories Tools

Learning Content Management Module Content Providers

SCAM Repositories SCAM Repositories

repositories management module

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TERENA TF Media Meeting 18-19 March, 2010, Athens, Greece

learning resources exchange module

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TERENA TF Media Meeting 18-19 March, 2010, Athens, Greece

semantic services module

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TERENA TF Media Meeting 18-19 March, 2010, Athens, Greece

Metadata

Profiling IEEE LOM to fit the Organic Agriculture and Agroecology fields

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TERENA TF Media Meeting 18-19 March, 2010, Athens, Greece

process

Used in specific community E.g. Publishing houses of agricultural books Metadata Application Profile Metadata Standard IEEE LOM Profiled Refined Adapted …to meet context-specific community needs

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TERENA TF Media Meeting 18-19 March, 2010, Athens, Greece

  • utcomes: metadata
  • Multilingual version of metadat a schema for

annotating learning resources

  • Organic.Edunet IEEE LOM Application Profile (AP)
  • based on European Schoolnet’ s LRE LOM AP
  • extensive review of existing schemas
  • through an expert group of CEN/ ISSS WS-LT
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TERENA TF Media Meeting 18-19 March, 2010, Athens, Greece

Organic.Edunet AP

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TERENA TF Media Meeting 18-19 March, 2010, Athens, Greece

general elem ents

  • General information

about the LO

– Specialized “Coverage” element with values from the LRE Thesauri “160. Countries and Geopolitical Areas”

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TERENA TF Media Meeting 18-19 March, 2010, Athens, Greece

m eta-m etadata & life cycle

  • Adopted values for

the “Contribute.Role” element from LRE

  • Data about past

and current state of the LO

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TERENA TF Media Meeting 18-19 March, 2010, Athens, Greece

technical

  • Kept the LOM

elements and value spaces

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TERENA TF Media Meeting 18-19 March, 2010, Athens, Greece

educational elem ents

  • Adopted the LRE

v3.0 Vocabulary for:

– Learning Resource Type – Intended End User Role – Context

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TERENA TF Media Meeting 18-19 March, 2010, Athens, Greece

rights

  • Rights.Description

– Creative Commons licences were incorporated – With two simple questions:

  • Will you allow commercial uses of your work?
  • Allow modifications of your work?
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TERENA TF Media Meeting 18-19 March, 2010, Athens, Greece

relation

  • Relation.Kind

– Adopted the values from LRE v3.0 – Added them to the existing LOM

  • nes
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TERENA TF Media Meeting 18-19 March, 2010, Athens, Greece

annotation

  • Annotation.Description

– Restricted the LOM value space – Vocabulary based on the Organic.Edunet quality strategy – Indicates the quality status of a resource

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TERENA TF Media Meeting 18-19 March, 2010, Athens, Greece

classification

  • Organic.Edunet

Ontology

  • AGROVOC Thesaurus
  • CAB Thesaurus
  • LRE Thesauri
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TERENA TF Media Meeting 18-19 March, 2010, Athens, Greece

Organic.Edunet Tools

Confolio Repository Suite of Tools & Organic.Edunet Federation Web Portal

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TERENA TF Media Meeting 18-19 March, 2010, Athens, Greece

Repository Tools demo

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TERENA TF Media Meeting 18-19 March, 2010, Athens, Greece

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TERENA TF Media Meeting 18-19 March, 2010, Athens, Greece

Metadata Quality

“Quality is never an accident; it is always the result of high intention, sincere effort, intelligent direction and skillful execution; it represents the wise choice of many alternatives”

William A. Foster

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TERENA TF Media Meeting 18-19 March, 2010, Athens, Greece

Metadata – Repository

  • Quality of Metadata

– Mainly manual annotation

  • Errors are 100% human generated!

– Many cases of resources with:

  • All Mandatory elements filled
  • Half of the Recommended
  • Few or none of the optional
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TERENA TF Media Meeting 18-19 March, 2010, Athens, Greece

Our solution

  • Random manual sampling of resources

– Checked the metadata – Identified mistakes – Asked partners to correct these and all similar cases

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TERENA TF Media Meeting 18-19 March, 2010, Athens, Greece

Our solution

  • Set up a Metadata Quality Review

Mechanism

– Created a Metadata Review Grid assessing:

  • Completeness, Accuracy, Appropriateness,

Correctness, etc

– Assigned 120 resources to 24 reviewers

  • They assigned other partners’ resources only

– Collected feedback and followed up with comments, corrections

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TERENA TF Media Meeting 18-19 March, 2010, Athens, Greece

Challenges

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TERENA TF Media Meeting 18-19 March, 2010, Athens, Greece

challenges

  • hidden tasks associated to

multilingualism of the tools

  • additional back-end services required
  • links change over time  automatic link

checker needed

  • support of peer-review quality

mechanism for the resources

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TERENA TF Media Meeting 18-19 March, 2010, Athens, Greece

challenges

  • High quality metadata support sufficient

searching

  • Lacking metadata fields make resources

invisible

  • High quality metadata require annotation

effort from the experts

  • How do we get the experts to spend the extra

time?

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TERENA TF Media Meeting 18-19 March, 2010, Athens, Greece

Thank you!