[4] RUCAPS was a significant milestone in the development of building modellers, selling many hundreds of copies during the early 1980s when CAD was rare and expensive, and introducing thousands of architects to computer aided design.
[7]RUCAPS was superseded in the mid-late 1980s by Sonata, developed by former GMW employee Jonathan Ingram.
This was sold to T2 Solutions (renamed from GMW Computers in 1987),[1] which was eventually bought by Alias|Wavefront[8] but then "disappeared in a mysterious, corporate black hole, somewhere in eastern Canada in 1992.
"[9] Ingram then went on to develop Reflex, bought out by Parametric Technology Corporation (PTC) in 1996.
RUCAPS did carry the 'weather vane' concept from UK-based Applied Research's Building Design System, BDS.