When elements from independent systems of semantic interoperability appear within the same document, the semantic compatibility of the independent systems is the measure of their non-interference.
HTML and CSS have very good semantic compatibility, often appearing together in the same document.
This is on my mind lately as I consider the compatibility of web application sources with microformats, while building a utility to help identify any aspects of the web application sources which interfere with the desired interoperability embodied by microformats.
I currently describe my pre-release project as: “A utility which checks webapp sources for compatibility with microformats semantics”. Based on the foregoing, I’m considering changing the description a little. At the end of the day, the work is the program that helps find the issues in the code. I’m hopeful that someone with greater comfort discussing the topic will help me to gain some confidence in how I present the program. So long as it is providing some useful and desired outcome, I’ll be working on it for awhile longer. Hopefully work to benefit more than myself!