[Building Sakai] Example how to use LTI Basic Outcomes Service

[Mark Breuker]

HI Chuck,

We are starting a development sprint next week to have support for outcomes in 2.8. Depending on the effort involved we could backport the LTI version that is in Sakai 2.9 to 2.8 and share that work with the community.

Can you estimate the effort involved with back porting? Are there any dependencies on the 2.9 Kernel for instance?

Mark


Mark Breuker
Product Owner
Tel.: +31 71 5451 203

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From: sakai-dev-bounces at collab.sakaiproject.org [mailto:sakai-dev-bounces at collab.sakaiproject.org] On Behalf Of csev
Sent: vrijdag 20 april 2012 5:46
To: Steve Swinsburg
Cc: Gerard van de Munt; dev sakai
Subject: Re: [Building Sakai] Example how to use LTI Basic Outcomes Service

Yup - it is all documented in the IMS site.

http://www.imsglobal.org/developers/LTI/test/v1p1/index.php

And some local bits are documented here:

https://source.sakaiproject.org/svn/basiclti/trunk/basiclti-docs/resources/docs/sakai_basiclti_outcomes.doc

But that is a little out of date.

I should probably add a improve that documentation task to myself :)

/Chuck

On Apr 19, 2012, at 11:15 AM, Steve Swinsburg wrote:


So forgetting 2.8 for the moment, is there doco on how one would use LTI 1.1 in Sakai specifically to return a grade?

Cheers,
S

Sent from my iPad

On 20/04/2012, at 12:53 AM, csev <csev at umich.edu<mailto:csev at umich.edu>> wrote:

On Apr 18, 2012, at 12:12 PM, Mark Breuker wrote:


In the release notes of Sakai 2.8.0 [1] it says: "Support for IMS BasicLTI outcomes". This is then incorrect?

- Mark

[1] https://confluence.sakaiproject.org/display/DOC/Sakai+CLE+2.8+release+notes


Mark,

Nice catch.

There is support for Outcomes in Sakai 2.8 but not the LTI 1.1 outcomes.   Thanks for jogging my memory.

I created a little set of "extensions" to LTI 1.0 that I implemented in Sakai 2.8 before LTI 1.1 was finished.   The Sakai 2.8 outcomes look quite different than the Sakai 2.9 / LTI 1.1 outcomes.   But the data model is the same and a tool can easily support both approaches because there are signals in the POST data as to which version of the service is supported.

The documentation for those extensions has never been made public because they were an IMS internal document that will not ever be published.   I have documentation I can share privately and even some sample code for the 2.8 outcomes.  I have to dig it up.

While the 2.8 (non-standard) extensions are not exactly the same as LTI 1.1 - they are still far better than writing a whole new web service.

If someone really wants to build grade return that works for both 2.8 and 2.9, I am happy to help - some info will have to be sent off-line until I can write new documentation that is suitable for public distribution.

/Chuck

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