I've spent some time today doing a bit more organizing and extending of my working draft of a taxonomy of classification codes for various types of artifacts (e.g. proposal development, requirements, high level design, detail level design, architecture, testing, operations, training, etc.)
Still a work-in-progress, but it feels like it is beginning to congeal...
I fear I still have quite a bit of re-organization and re-structuring to do before I will be satisfied with the final product - but with what is there already - it is a decent foundation upon which others might yet build.
And so, it is worth publishing this update.