The Internet is a net . Much of its power comes from dissolving the boundaries between hitherto isolated pockets of content.
Chaos ensues with directory listings and search results that resemble pack-rat nests.
A small country wants to create a unified interface to all online government information , including the many ministries and departments of the national government as well as a large number of local jurisdictions. Of course, each ministry has its own information architecture and does not want another department to dictate its design. To say nothing about the difficulty of getting a city or county administration to follow guidelines from the capital. Each product line has its own database, category listing pages, and search engine. Or cross-sell between a film based on a book and the book itself.