Comment by RobinL

> "the video game people model it differently because they're doing different analysis, and if you unify the base layer to support everybody's type of analysis, it's not going to change that there's still a bunch of independent, not-talking-to-each-other analysis going on"

This resonates. Moreover, it's very easy for architects to assume that because different areas of the business use data about the 'same' thing, the thing must be the same.

But often the analysis requires a slightly different thing. Like: we want a master list of prisons. But is a prison a building, a collection of prisoners (such that the male prison and the female prison on the same site are different prisons), or the institution with that name managed under a particular contract?