EdReNe – 2nd Strategic Seminar, June 2008

Spanish Educational Repository

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Agrega

Autonomous Communities

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Agrega What are its objectives

•To promote, unify and set a standard reference

•To generate a repository of digital educational objects

•To create a technological environment for the contents

The project is focused on the creation of a federation of repositories which must allow to share the standardised contents.

The project is focused on the creation of a federation of repositories which must allow to share the standardised contents.

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Agrega Project team

Autonomous Communities

Project Direction

Project Development

Experts/Users Group

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Agrega The Platform

is a platform of digital objects which includes 18 federated nodes, one per Autonomous Community plus another one located at the CNICE / Ministerio de Educación in Spain.

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Agrega Learning Objects

This repository deals with standardised educational digital objects:

Each node has its own repository with contents packaged following the standard SCORM 2004, SCORM 1.2, SCORM “Moodle” and IMS-CP.

The tagging information is stored following the standard LOM v.1.0 in Spanish (LOM-ES).

All content searches are done with a federated system based on the specification “Simple Query Interface” (SQI).

There is also a Interoperability Interface - IMS-DRI, OAI-PMH.

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Agrega Key issues

•Creation of a federation of nodes

•Management of digital educational objects following standards

•One specific site per CCAA plus Administration (CNICE/MEC)

•Users to manage the contents using productivity tools

•Interface and functionality off-line and on-line

•All these interfaces achieve WAI-AA and are multilingual

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Agrega Main characteristics

• Develops a Services Oriented Architecture (SOA), distributed in interoperable Web Services components.

• Open Source tools and technological developments licensed as GPL-GNU.

• Generated content licensed as Creative Commons - Attribution-Non-Commercial-Share Alike Spain

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Agrega Main characteristics

•Central node + autonomous nodes.

•Management of all kind of web used contents: simple or compound objects.

•Public or restricted contents distributed in the different nodes.

•Content tools: packaging tool, search tool and interface.

•Users can create new contents, but only authorised users can publish.

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Agrega Functionality

User oriented: MEC or autonomous communities site

Digital educational objects node:

•Interoperability interface IMS DRI

•Content search SQI

•Content storage SCORM 2004

•Content management

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Agrega Interoperability

• Packaging: SCORM2004

• Tagging: LOM-es

• Identification: Unified catalogue identicator / persistentURL

• Search: SQI

• Interoperability: DRI

• Harvesting: OAI-PMH/ DC

The System represents other nodes or “harvesters” like Google / OAI

Access t

oR

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osit

ory

All nodes are the same, are federated, operate between them and the Internet according to standards

All nodes are the same, are federated, operate between them and the Internet according to standards

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Agrega Tools

• Packaging tool

Manages digital objects according to standard SCORM2004

•Advanced

•Basic

• Tagging tool

Tags digital objects according to standard LOM_es

•Advanced: all fields

•Basic: compulsory and basic fields to describe the object

• Searching tool

Searches objects

All tools are oriented towards (1) productivity (2) minimise creation / aggregation/ desaggregation time of digital educational objects (3) taking into account the different

user profiles.

All tools are oriented towards (1) productivity (2) minimise creation / aggregation/ desaggregation time of digital educational objects (3) taking into account the different

user profiles.

Advanced packaging tool Basic packaging tool

Validator

Previews

Basic tagging tool

Advanced tagging tool

Search engine

On

lin

e/

Off

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Packaging tool

Tagging tool

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Agrega Actors

The system manages actors and profiles.

The system manages actors and profiles.

Actors Description

UserAll actors that are going to use the system, and they must have at least a name.

Registered actor

Operates inside the node where is registered, so he must have a user and a password.

Administrator

In charge of administering the node: publishing news, feeds, downloads, users…

Tagging actor

In charge of taggings inside the system, so he is very much linked to the teacher.

TeacherMight create and preview contents and store them inside the node. If the teacher is also tagging actor he might tag the contents he has created.

PublisherIs related to the administrator and will be in charge of controling the publishing flow. He might also be a tagging actor.

Visiting actor

Is not registered in any node, so he cannot store any information inside it, and will only view public contents.

System actor

Generic user which represents an external node or the node itself (web service) .

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Agrega Pre-production and production

• Pre-production: HW virtual environment with Vmware up to 19 nodes; access up to 235 usuarios

• Production: HW customised environment for each node

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Agrega User functionality

•Simple searching tool

•Simple packaging and tagging tool

•News and FAQ tools

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Agrega Conclusions

•Creation, packaging, approval and publication according to standards

•Distributed and descentralised network

•Storage and search locally as well as globally

•Easy management of users and profiles

•Viewing and presentation environment

EdReNe – 2nd Strategic Seminar, June 2008

Spanish Educational Repository

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