I think you will enjoy this graphic. Click for a larger view. This is a chart of all of the standards that ODF 1.2 refers to, what we standards geeks call “normative references”. A normative reference takes definitions and requirements from one standard and uses it, by reference, in another. It is a form of reuse, reusing the domain analysis, specification and review work that went into creating the other standard. Each reference is color coded and grouped by the organization that owns the referenced standard, W3C, IETF, ISO, etc., and placed on a time line according to when that standard was published

I’m sure each reader will note interesting patterns on their own, but a few things stood out in my mind when looking at this chart: