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Podd Workshop, CSIRO Gungahlin Campus 2010. Annotation and Security Services. Ron Chernich Principal Research Fellow University of Queensland, Australia. UQ eResearch Labs. Working with collaborative annotations and metadata related services since 2004

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Podd Workshop, CSIRO Gungahlin Campus 2010

Annotation

and Security Services

Ron Chernich

Principal Research Fellow

University of Queensland, Australia


Uq eresearch labs
UQ eResearch Labs

  • Working with collaborative annotations and metadata related services since 2004

  • Experience with tools and techniques for annotating text and multi-media resources

  • Began development of a “clean slate” annotation service for DIAS-B in October 2008

    • Prime user: the Atlas of Living Australia (ALA). Also used by Aus-e-Lit

    • Open source and generic enough for others


Uq eresearch labs1
UQ eResearch Labs

  • Working brief expanded in 2009 to include Security Services

  • Seamless integration with the Australian Access Federation (AAF) using Shibboleth

  • Seamless integration with existing Open ID providers, such as Google, Yahoo, Verisign, Microsoft, etc

  • Fallback to integrated, bespoke, user management service

  • All connectable to a locally managed, roll based Authorization Service.


Uq eresearch labs2
UQ eResearch Labs

  • All services delivered as Java Servlets capable of deployment in Open Source or proprietary web service containers

  • Services decoupled and configurable so either can stand-alone without the other

  • Ready NOW (from SourceForge)

  • Will continue to be refined and enhanced through to at least mid 2011


Security
Security

  • Tricky stuff. Nasty details abstracted away so components can be simply configured on or off.

  • AAF (Shibboleth based) will still require the environment to be Shibboleth enabled and made AAF aware. This is documented.

  • Other details elided to prevent glazed eye syndrome…


W3c annotea
W3C Annotea

  • Annotates (resource)

  • Author

  • Body

  • Context

  • Created/Modified (date)

  • Related

  • A W3C Semantic Web initiative (draft) unchanged since 2002 that defines a protocol for creating, updating, and retrieving annotations using an extensible RDF XML schema having 7 properties :


On the server
On the Server

  • Store and retrieve structured annotations

    • Robust

    • Efficient

    • Scalable

    • Extensible

  • Provide harvesting through OAI-PMH

    • including sets and resumption tokens

  • Provides search capability

  • Granularity of Secured access is fully configurable


At the client
At The Client

  • Create and display annotations

    • A whole web page

    • Selected text on a web page

    • A selected region of an image on a page

    • Map markers (in development)

  • Reply to annotations and other replies

  • Support context sensitive annotation schemas

  • Support specially authored pages and pages which are ignorant of the annotation service


The ross wilkinson challenge
The Ross Wilkinson Challenge:

  • NO PLUG-INS!

    • They are browser and version specific

    • They require installation and configuration

    • They compromise user security and integrity

    • They are Verboten by many IT departments


Surprise
Surprise!

  • All objectives met

    • Firefox

    • Safari

    • Google Chrome

    • Opera

    • Internet Explorer 8

  • Now, Introducing…

The developers were the ones surprised


Danno and dannotate
DANNO, and DannoTATE

  • One Servlet to Book ‘em

  • One Servlet to Make ‘em and Find ‘em

  • One Script to Bind ‘em all

  • …and other stuff because nothing is ever that simple…


Also introducing
Also Introducing…

  • Emmet

    • The Security Service

    • Like Danno, Emmet uses the Java Spring framework

  • Chico

    • Spring wrapper extensions that simplify configuration so services can be tailored without touching the source code



The same origin problem
The Same Origin Problem


Take away
Take-Away

  • Chico, Emmet, Danno and Dannotate are ready NOW!

  • They allow viewers of specially prepared web pages to shared annotation at page, text string, and image region levels with optional, configurable levels of security

  • The Danno Repeater extends this ability to many unprepared web pages

  • The components are open source (LGPL), fully documented, and will be further developed and refined over the life of the ALA/DIAS-B project and perhaps beyond.


Availability
Availability

  • Chico, Emmet, Danno and Dannotate - open source (LGPL)

    • Emmet and Danno (server side)

      • 100% Java

      • Servlet (Apache Tomcat or similar)

      • Uses RDF triple store (Sesame or Jenna)

    • Dannotate (client side)

      • Java servlet talks to Danno and formats responses

      • JavaScript client provides user interface

http://itee.uq.edu.au/~eresearch/danno.html


Key people
Key People

  • University of Queensland

    • Prof Jane Hunter

      • Principal Investigator

    • Dr Stephen Crawley

      • Senior Research Fellow

    • Mr Ron Chernich

      • Principal Research Fellow



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