Five Paintings IV One of the most extraordinary examples of McCracken's illusory surfaces occurs with Five Paintings IV, 1974. This wall-mounted work has a black polyester resin finish. From some angles the surface is opaque, from others highly reflective, and from still others it seems to reveal great depth. A happy accident in the creation of the work sealed many tiny air bubbles or particulates in the piece. When these catch the light, they suggest a galaxy of stars on a moonless night. John McCracken, Phenomenal: Exhibited Works imperfections
The Art of Systems Architecting A Book by Mark W. Maier & Eberhardt Rechtin www.amazon.com Complete and consistent requirements systems
Complete and consistent requirements An architect who needs complete and consistent requirements to begin work, though perhaps a brilliant builder, is not an architect. What the problem isThe heart of systems engineeringA late change in requirements is a competitive advantage architecturedesign