Since a good DLE involves so many different capabilities, skills, and knowledge sets, it’s probably likely that at least some of the tools “mashed” into a DLE would be third party derived.
Here’s an article on some options now for same with Adaptive Learning Tools. But the general concept of aggregating capability from “outside” the org sources applies to the 7 core elements, and might, for example, include some core game building tools or templates purchased, or partnered with.
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