Possibilities of Open Source Architecture
Paper by Usman Haque: Hardspace, Softspace and the possibilities of open source architecture, 2002 (PDF)
URL = http://www.haque.co.uk/papers/hardsp-softsp-open-so-arch.PDF
what an “operating system” might mean in the context of architecture, particularly an “open source” operating system
Example
Urban Versioning System, http://uvs.propositions.org.uk/