Building Scalable IMS LTI Tools Using the TSUGI Framework
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This talk is about my next-generation tool hosting environment called "Tsugi" - www.tsugi.org 2014 06-03-miami-tsugi
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Building Scalable IMS LTI Tools Using the TSUGI Framework
- 1. Building Scalable IMS LTI Tools Using the TSUGI Framework Charles Severance University of Michigan School of Information Longsight, Inc.
- 2. Disclaimer... What I am about to talk about is not an official direction or position of the University of Michigan, Longsight, nor IMS Global.
- 3. 3
- 5. Project Tsugi • Tool Hosting Container (i.e. Like a B2) – PHP now, Java planned • Based on IMS Specifications – LTI 1.x / LTI 2.x / IMS Settings / Common Cartridge / Caliper / CASA / Roster / Gradebook / .... • Tools can run on a campus hosting platform or commercial provider or cloud • Tools are "installed" into hosting containers
- 6. From the 2003 Sakai Proposal http://www-personal.umich.edu/~csev/papers/2004/2004_03_01_mellon_sakai_proposal.pdf
- 7. ... WTD?
- 9. "Large Midwestern University" Sakai ....... Looks pretty cool.... But...
- 10. Sakai • Where is the user data?? • What happens when there are 50 apps? • What if the app is free and hosted by a professor? • What happens if we stop paying the license?
- 12. LTI 1.x versus LTI 2.x and Beyond • LTI 1.x – Three pages of spec and some "hello world" code • LTI 2.x – Several specs – multiple interactions – We will need to share common implementations across instructions • And what about Caliper, Casa, xAPI, etc. ??
- 13. Multiple LMS Campus + App Store App Store Tool Tool Tool Tool...
- 14. Multiple LMS Campus + App Store App Store Tool Tool Tool Tool Tsugi Hosting Container Tool ToolTool ... Install
- 15. Tsugi Exp Multiple LMS Campus + App Store App Store Tool Tool Tool Tool Tsugi Prod Tool ToolTool ...
- 16. www.tsugi.org
- 21. • Install / Configuration similar to Moodle • Emulate the Moodle APIs / Runtime • Multi-tenant • Cookie free (i.e. loves iframes) • Uses PDO with some rules about FK for easy cleanup • Auto-ddl feature to upgrade schema PHP Tsugi
- 22. PHP Tsugi Tool Code <?php require_once "../../config.php"; require_once $CFG->dirroot."/lib/lms_lib.php"; $LTI = lti_require_data(array('user_id', 'result_id', 'role','context_id')); $displayname = $USER->displayname; // Start of the output $OUTPUT->header(); $OUTPUT->start_body(); ... $OUTPUT->footer();
- 23. Demos • https://lti-tools.dr-chuck.com/tsugi/ • https://qa10.longsight.com/ – Join site "TSUGI Test"
- 24. PHP Tsugi Next Steps • Architecture Review / Critique • Internationalization – need help • Outreach to the Moodle community • IMS LTI 2.0 Support • xAPI support • IMS Caliper Support • IMS Casa Support Tsugi is in 24x7 production and I can support a few experimenters on my servers.
- 25. Java Tsugi Dreams Sakai Sakai Tool Sakai Blackboard B2 Tool B2 I am not in a rush to do the Java port. I want to stay agile and use PHP as an architecture proof of concept. The Java port will be simple and fast with PHP in hand.
- 27. Thinking Big... • I hope to bring TSUGI to Apereo Incubation before next conference • I would like to build a tool ecology to benefit all teachers regardless of LMS • I want us to own our data and cloud choices • I want to see Blackboard, Moodle, Canvas, and D2L schools joining Apereo