Forum .LRN Q&A: Re: ANN: IMS Learning Design Package Specification (RFC)
Yes, indeed, the editor is a very important piece in order for the entire functionality to be useful.
I believe the compromise would be, let us first make a first cut at the implementation, not writing code, but planning the structure. Then we can proceed and propose a UI with user models, templates, etc.
All this before implementing anything. I believe once we have this solidified, we can deploy a first version with significant functionality and a basic editor.
So, following your suggestion, we'll include in the spec an editor definition and user scenarios.