Indeed I should have mentioned I was talking about well behaved color spaces (those that can solely be described by a matrix and maybe a curve)
Speaking of flowcharts, I have been reading this (Link to PDF: Recommended Procedures for the Creation and Use of Digital Camera System Input Device Transforms (IDTs)) casually over the past few months. Might interest you and the participants of the HDR, ACES and the Digital Photographer 2.0 thread.