Using a centralized database or information service to document FITS keywords is not a new idea. However, in previous incarnations of this concept that we have noted, the object has either been purely documentary or single-purpose (as in the SaveTheBits database schema, for example). Our goal was to capture enough information, and to generalize the information sufficiently, that multiple related applications could all use one authoritative, online reference database for information about FITS keywords. For example, live observing and engineering interfaces to an instrument could rely on the same database that was used to generate printed documents, drawings, and even sections of source code.
A more complete documentation of our work, with examples, and live demos, can be found online at
http://www.ucolick.org/~de/deimos/Memes