Hi Everyone, we have long supported import of our course material into Schoology via 1EdTech Common Cartridge. Our cartridge packages include complex folder structures to organize materials, embedded quizzes and tests in QTI format (so they become native Schoology assessments), and links to LTI-based resources and gradable activities.
We have recently upgraded our LTI support to include LTI 1.3 and the LTI 1.3 Assignment and Grade Service (AGS). Per Schoology's documentation (https://developers.schoology.com/app-platform/lti-apps/), LTI 1.3 "Deep Linking" is also required. It was initially unclear to us *why* deep linking was needed to add individual resources when a common cartridge import provides far superior capabilities (for us). Deep Linking, for example, cannot import the requisite folder structures needed to organize material, nor import QTI assessment data to create native Schoology assessments. With a common cartridge import, teachers can establish a full course in one step.
Through testing, we discovered that LTI-linked, gradable items created via Common Cartridge import (and subsequently moved from Resources into a Course) do NOT have access to the LTI 1.3 Assignment and Grade service at all. It doesn't matter if your LTI 1.3 app is configured for AGS support, nor if the LTI link itself is properly configured as a gradable item in the gradebook. The LTI 1.3 AGS claims are missing completely from the LTI 1.3 Schoology messages for these links, and therefore the AGS cannot be used to communicate grading information back to Schoology.
Experimentally, we found the LTI 1.3 AGS claims are supported for gradable items created through Deep Linking (with an important caveat I've posted about separately). However, without supporting LTI 1.3 AGS for LTI resources brought in common cartridge import, the entire LTI 1.3 / AGS feature has little use for us.
I'm hoping someone can shed some light on something we might be doing wrong - hopefully the LTI 1.3 AGS is available in some way for imported resources. All other LMS we've tested (Canvas, Buzz, etc.) provide LTI 1.3 AGS for all gradable LTI items, regardless of how they're brought into the course. Thanks!
