the advanced distributed learning initiative and the handle system william h blackmon, phd chief...
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The Advanced Distributed Learning
Initiative and the Handle System
William H Blackmon, PhDChief Technical Officer
Advanced Distributed Learning Initiative
The Department of Defense spends billions of dollars on training every year.
Types of training:Microsoft Word basicsAircraft maintenanceIntelligence things we can’t talk about
There is a long history of using computers to produce effective training
ADL was established in 1997 to increase the effectiveness of training in the DoD
ADL tackled the problem of self-paced, managed learning
Created SCORM, which establishes a baseline for creating and delivering trainingA SCORM course is a zip file containing everything needed for a Learning Management System to run the course
SCORM has been widely successful in the DoD, corporate, K12, and higher-ed sectors
Nearly identical training content is developed by different groups because:
“I didn’t know they were developing content”“Their training doesn’t exactly meet my needs”“Their training doesn’t match my look and feel”“I have to guarantee the accuracy of the content”“There’s no financial incentive to me”“It’s easier to develop new content than to find and adapt old content”
The ADL-Registry is a central website for the DoD
To register the existence of SCORM contentTo search for existing contentUsing a metadata schema acceptable to the community
Military culture dictated that the content remain under “local control”
So the ADL-Registry points to the content
The ADL-Registry uses HandlesAs the GUIDs for the contentAs a way to manage persistent IDs for content in a world with ever-changing URLs
To manage authorization rights for users of the registry
But we see more interesting uses for Handles in our near future!
Multiple Resolution
Using a single Handle to name a training resource, how do I find the content on:
SIPR netNIPR netInternetDisconnected Submarines?
We need hdl:2000/1 encodings to work instead of relying on http://hdl.handle.net
We need an automatic resolution system
Versioned Content
The DoD depends on authenticated content
When content is updated, we need to:Keep the Handle to old content activeTell users the content has been updatedTell users where the new content isLet the users decide which content is right for their needs
hdl:2000/1?version=latest hdl:2000/1?availableversions
Handles in Content Packages
A course table of contents could look like this:
Local context-setting learning objecthdl:2000/2 (shared learning object)hdl:1890/4 (shared learning obejct)Local summary learning object
Questions?
Bill [email protected]
Advanced Distributed Learning Initiativewww.adlnet.govadlcommunity.net
ADL-Registrywww.adlregistry.org