Well, she offers a variety of definitions, but as I understand what you're saying about directory, modernism says certain things are true while postmodernism says anything is true. And that there are multiple truths. In other words, we hold these truths to be self evident and non-contradictory. The traditional, or modern, paradigm, insists that there are certain truths and they are unchanging and monolithic. There are a variety of these, and they stand separately, like islands.
Modernism is industrial.
A few big companies, each with their own sets of truths, try to dominate and successfully create competing and often incompatible monoliths. It's all or nothing. These islands were powerful, but now they're going away. Now we're looking at a sprawl of roads and intersections that changes constantly and nobody can control. We need a new paradigm for that.