IMS Basic LTI Overview

© Copyright 2010 IMS Global Learning ConsortiumAll Rights Reserved.

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Charles Severance, Ph.D.Affiliate Coordinator

IMS Global Learning Consortium (IMS GLC)

http://www.imsglobal.org/http://www.dr-chuck.com/

IMS Basic Learning ToolsInteroperability


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Learning Tools Interoperability

• Problem

• Every CMS has their own very unique "module",

"tool" "block", "nugget", "powerlink", etc

• External tools like QuestionMark, Wimba,

Elluminate, etc must prioritize which CMS they

invest in plugging into

• Tool Providers wait until customers are willing to

pay money to start development


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• Solution• Build a standard plug-in for all CMS systems

• Tool and Content Providers can build one integration and use it in any CMS that supports the standard

• Start simple and basic and then expand feature sets to allow market to adjust over time and insure that engineering due diligence is being done – phased release


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IMS: Digital Learning Standards

Free thecontent

IMS Common Cartridge

Seamlesslyconnect

to learning

IMS Learning ToolsInteroperability (LTI)

The informationarchitecture for

learning

IMS Learning InformationServices (LIS)


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Developer Support:http://www.imsglobal.org/developers/BLTI/


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Basic LTI Certification

• Assure the end-user/purchaser that products will

interoperate

• Any certified Provider (Tool) should be able to

interoperate with any certified Consumer (LMS)


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Basic LTI Certification

• Must be an IMS member to gain certification

• IMS will assist in discussions if there is an

interoperability concern between vendors

• Long-term relationship


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http://www.imsglobal.org/developers/alliance/lti/blti-cert/http://www.imsglobal.org/developers/alliance/lti/blti-cert/


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Certified - LMS

• PowerLink for Blackboard WebCT v8• Building Block for Blackboard Learn v9• Desire2Learn Learning Environment v8.4.2 and

v9.0• Jenzabar JICS v7.2 and e-Racer v1.2• Learning Objects Campus Pack v4.2• Sakai v2.7• Sakai 3 v0.4• Moodle 1.9 Basic LTI Module• OLAT 7.0• GeNIE, Open-Source LMS v1.0

http://www.imsglobal.org/cc/statuschart.html


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Certified - Tool

• CourseSmart ServiceHub 2.0

• CafeScribe Building Block for Blackboard

• Learning Objects Campus Pak v4.2

• NoteFlight 2.1

• Wimba Basic LTI Components v1.0.2

http://www.imsglobal.org/cc/statuschart.html


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LEARNINGTOOL

LEARNINGTOOL

LTI

LTI

PHPJava

App EngineWookie...

...

?????


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www.noteflight.com


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Joseph Berkovitz <[email protected]>www.noteflight.com

http://videos.noteflight.com/MoodleBasicLTI.mov


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LTI Terminology

• Tool Consumer – The system that

"consumes" the tool (i.e. the Learning

Management System – e.g. Blackboard,

Moodle)

• Tool Provider – The system that provides the

tool (e.g. Wimba, LearningObjects, etc..)


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SOAP Services

LaunchEvents

Tool Consumer

Tool Provider

TCAdmi

n

TCAdmi

n

Profile

Tool Proxy Runtime

Tool Proxy Runtime

TPAdmi

n

TPAdmi

n

Tool Proxy Runtime

Tool Proxy Runtime

Tool

Secret

Tool ProxySecret

TCUse

r

TCUse

r

Tool

Profile


Deployment

SessionTool

SettingOutcomes

Data...

REST Services


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Basic LTI Goals

• We decided to roll out Learning Tools

Interoperability in a phased series of releases

• These specifications are pretty detailed so we

want to get them right

• We want to engineer reference implementations

along the way

• Basic LTI: "The smallest useful subset of LTI"


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Launch

Tool Consumer

Tool Provider

TCAdmi

n

TCAdmi

n

Tool Proxy Runtime

Tool Proxy Runtime

TPAdmi

n

TPAdmi

n

Tool Proxy Runtime

Tool Proxy Runtime

Tool

Secret

Tool ProxySecret

TCUse

r

TCUse

r

Basic Learning Tools Interoperability


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IMS Learning Tools Interoperability Technical

Overview


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Integrated User Experience

Welcome Local Resource Local Resource LTI Tool Movie


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User Experience

Welcome Local Resource Lame iFrame LTI Tool Movie



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LMS (LTI Consumer)LMS (LTI Consumer)

Tool (LTI Provider)Tool (LTI Provider)

Week 1 Local Resource Local Resource LTI Tool Movie

LMS Looks up User and Course Information.

Information is signed using secret and OAuth

Form data sent to Browser

Again in slow motion…



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<form action=”tool”/><input name=”user_id” value=”2348d8dd” /><input name=”oauth_token” value=”abc.edu” /></form>

Tool looks up secret and validates signature.

Tool provisions user, course, and session.

Tool sends redirect

Form is immediately auto-submitted using JavaScript.



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<head><meta redirect page=”main.php”></head>

Tool produces first page.

Browser follows redirect…



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Basic LTI Sample Launch Datalti_version=LTI-1p0

lti_message_type=basic-lti-launch-requestoauth_consumer_key=lmsng.school.eduresource_link_id=120988f929-274612user_id=292832126

roles=Instructor

lis_person_name_full=Charles R. Severance

lis_person_contact_email_primary = [email protected]

context_id=456434513context_title=SI301 – PHPtool_consumer_instance_description=University of School


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Basic LTI and IMS Common Cartridge

• Common Cartridge 1.1 will

include the ability to define

a Basic LTI resource and

include that resource in

course organizational

structures

Welcome HTML Resource Folder LTI Tool Discussion QTI Pool

Welcome HTML Resource Folder LTI Tool Discussion QTI Pool


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LTI

LTI

...

PREMIUMLEARNINGCONTENT

PREMIUMLEARNINGCONTENT

?????


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LMS

LMSPremium

LearningContent

PremiumLearningContent

CommonCartridge

LMS

LMS

When LTI is combined with the IMS Common Cartridge, publishers can distribute cartridges containing active, authenticated links back centrally hosted content.


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Coming: Connecting to Learning Information Services (LIS)

TOOL PROVIDER

TOOL CONSUMER

• BasicLTI Launch with LIS pointers

LISSERVICES

The TP calls LIS services, if available.

Educause 2010 Outcomes Demo


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Launch

Tool Consumer

Tool Provider

TCAdmi

n

TCAdmi

n

Tool Proxy Runtime

Tool Proxy Runtime

TPAdmi

n

TPAdmi

n

Tool Proxy Runtime

Tool Proxy Runtime

Tool

Secret

Tool ProxySecret

TCUse

r

TCUse

r

Simple Outcomes

Grade BookGrade Book

SimpleOutcomeSimpleOutcome

User, Course, Resource, Callback info

Result-IDGrade


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SimpleOutcome Tech Details

• Service can be called asynchronously (i.e. no

session needed)

• Best Practice Security is very fine-grained

(course / resource / user) and revokable

• Tool sends outcome to service as form-encoded

POST data, signed by OAuth shared-secret


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Educause DEMO – October 2010


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Tool Consumer

SimpleOutcomeSimpleOutcome

Tracker

ContentJavaScript

Flash...

Launch


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IMS Implementation Support

• Materials, sample code, sample application

• http://www.imsglobal.org/developers/BLTI/

• Additional support and certification

• http://www.imsglobal.org/joinims.html


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Questions

• IMS – www.imsglobal.org

• [email protected]

Seamlesslyconnect

to learning

IMS Learning ToolsInteroperability (LTI)

http://www.imsglobal.org/developers/BLTI/

IMS Basic LTI Overview

Documents

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