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RUCAPS (Really Universal Computer Aided Production System) was a computer aided design (CAD) system for architects, first developed during the 1970s and 1980s, and today credited as a forerunner of Building Information Modelling. It ran on minicomputers from Prime Computer and Digital Equipment Corporation (DEC). ==Development== The system was initially developed by two graduates of Liverpool University, Dr John Davison and Dr John Watts in the early 1970s. They took their work to architects Gollins Melvin Ward (GMW Architects) in London in the late 1970s, and developed it whilst working on a project for Riyadh University. It became the Really Universal Computer Aided Production System (RUCAPS), and from 1977 was sold through GMW Computers Ltd in several countries worldwide. It was amongst the leading systems of its time, selling many hundreds of copies at a time when CAD was rare and expensive. The term 'building model' (in the sense of BIM as used today) was first used in a 1986 paper by Robert Aish,〔Aish, R. (1986) "Building Modelling: The Key to Integrated Construction CAD" CIB 5th International Symposium on the Use of Computers for Environmental Engineering related to Building, 7–9 July.〕 then at GMW Computers, referring to the software's use at London Heathrow Airport's Terminal 3〔cited by Laiserin, Jerry (2008), Foreword to Eastman, C., ''et al'' (2008), ''op cit'', p.xii〕 - "the first program to use the concept of temporal phasing of construction processes" - and it is regarded as a forerunner to today's BIM software. RUCAPS was a significant milestone in the development of building modelers and sold in significant numbers during the early 1990s. Many thousands of architects around the world were introduced to computer aided design using this system. RUCAPS is regarded by some writers, e.g.: Jerry Laiserin, as the inspiration behind Autodesk's Revit: :''While Autodesk Revit may not contain genomic snippets of Reflex code, Revit clearly is spiritual heir to a lineage of BIM "begats" — RUCAPS begat Sonata, Sonata begat Reflex, and Reflex begat Revit.''〔Laiserin, J. (2003) "(LaiserinLetterLetters )" (see Laiserin's comment to letter from John Mullan), ''The Laiserin Letter'', January 06 2003.〕 RUCAPS pioneered CAD and BIM within the architecture market by developing three dimensional way to design, and many of the concepts within RUCAPS were the same as those later presented by products like Revit and TriForma: a central 3D parametric database offering multi-user access to a single building model, with drawings treated as 'graphical reports'. RUCAPS helped establish the concept of a 3D model composed of an arrangement of 3D components (or objects), from which 2D views could be extracted and depicted on a drawing sheet, with a relational database loaded from the components within the models, and non-graphic reports run on the database. RUCAPS was superseded in the mid-late 1980s by Sonata, developed by Jonathan Ingram's T2 Solutions (renamed from GMW Computers in 1987),〔 which was eventually bought by Alias|Wavefront〔 but then "disappeared in a mysterious, corporate black hole, somewhere in eastern Canada in 1992." Ingram then went on to develop Reflex, bought out by Parametric Technology Corporation (PTC) in 1996.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「RUCAPS」の詳細全文を読む スポンサード リンク
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