The OhioLink LTI tool allows educators to embed OhioLink content within any Learning Management System that supports LTI 1 or 1.1. It has currently been fully tested for Quality Assurance in Canvas, Moodle, Blackboard, and Schoology.

LTI Key/Secret: Contact the OhioLink OER Help Center to obtain your key/secret

Content Selection

The LTI tool allows any educator to browse and embed media objects alongside other content within assignments, or select content which comprises entire modules, lessons, or units. All users are able to search content added to OhioLink Collections. Additionally, users can browse or search content from Group Shared Folders and personal My Items libraries.

Authentication and Account Provisioning

The tool provides automated authentication and new account provisioning, providing users with an "SSO like" experience. The LTI key/secret pair can also be configured to automatically add new users to a OhioLink Group or Hub. 

LTI Tool Preview Images

Some basic preview images of the tool have been included below. More detailed instructions for using the LTI tool is available in the "Using the LTI tool" section of this guide.

This is a screenshot showing what browsing  OhioLink Collections looks like in the LTI tool.

This is a screenshot showing what browsing My Items looks like in the LTI tool.

This is a screenshot showing what browsing Group folders looks like in the LTI tool.

Troubleshooting and Technical Documentation

Safari SSO Issue

The Problem: I am using Safari and I can’t seem to login to the LTI Tool no matter what I do! I’ve even tried changing my password via reset password from email, and it still doesn’t work. 

The Solution: 

  1. Check your cookie settings, and make sure you are allowing third party cookies. If you are strict about your cookie settings, you may need to whitelist vivaopen.oercommons.org 

  2. Close out of the LTI Tool

  3. Open the OhioLink OER Open Homepage in a new tab 

  4. Launch the LTI tool again 

The Reason

Safari does a lot to protect your privacy, and ensure third parties aren’t tracking you without your consent. Because of this, Safari won’t allow third parties to set cookie information, if it looks like you haven’t visited the site recently. This means we can’t set an SSO cookie if you’ve recently cleared your history, are using Safari for the first time, or are using Safari on a new device. Opening the OhioLink Homepage will fix this problem, because it indicates to Safari that OhioLink Open is a site you use intentionally. Technical details can be found here: https://webkit.org/blog/7675/intelligent-tracking-prevention/

Other Technical Documentation

The OhioLink LTI Tool Provider conforms to the IMS LTI 1.1 Standard: https://www.imsglobal.org/specs/ltiv1p1/implementation-guide

We also support Content Item Message Extension, or Deep Linking: https://www.imsglobal.org/specs/lticiv1p0

Required Parameters

The following parameters must be present in LTI launch request sent by the Tool Consumer

  • One of the following content identification parameters:

a.) resource_link_id (alphanumeric GUID)

b.) custom_redirect_url (full URL pointing to content on the OhioLink platform, used in manual config only)

  • tool_consumer_instance_guid

  • role

  • email

  • userid

*If parameters do not conform exactly to the parameters listed above, the LTI tool will return a missing parameter error.

Optional Parameters

  • launch_presentation_return_url

If this parameter is present it will be used to redirect a user when a resource is selected in the picker interface. Otherwise, the user is redirected to the specified OhioLink content page.

Error Messages

If the cause of the error is known, the LTI tool will return an error message with debugging information. The most common cause of errors is missing LTI parameters.