Trina, I always enjoy your posts. Interestingly, I found this article after reading a LinkedIn post today about ADDIE. And while expert researchers would probably remind us that these are really frameworks as opposed to models,
I agree with William Johnston that Addie at least today is meant to be iterative, not linear, unless linear works in your environment or the project.
I have used Addie in a way that is not only iterative in a single large loop, but almost like a amusement park ride, each major milestone in the framework itself is iterative.
And another flavor of this is, for example, a Learning design project could cycle from beginning to end and make just one full circle loop of the Addie cycle, or you make several rounds going deeper or Making other adjustments based on achieving desired outcomes or as circumstances change over time.
Suffice to say I suppose in any organization today, we all are typically iterating in some fashion, and which framework we use may not matter as much as that we’re using “a” framework. Thoughts?