The following presentation was recorded live in San Jose, California, October of 1996, at The 1996 ACM Conference on Object-Oriented Programs, Systems, Languages and Applications (OOPSLA).

A full transcript of this talk is available here: http://www.patternlanguage.com/archive/ieee/ieeetext.htm

Video transcoded from VHS and provided by The Understanding Group (TUG): http://understandinggroup.com/2011/11/christopher-alexander-from-1996-patterns-in-architecture/