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A Bit of History
Contents
History of ISO 15926
We do not intend to make you into an amatur historian, but a brief look at where ISO 15926 comes from will put the standard into a better perspective.
If Only We Could Exchange CAD Drawings
Soon after the advent of CAD in engineering offices in the late 1970s, engineers started wondering why they couldn't just open a drawing authored with one program with their own system. With a large end user (the US Department of Defense0 pounding on the table, the industry put their heads together and within a few years the Initial Graphics Exchange System (IGES) was created.
Although all reports about IGES are not uniformily complimentary, within a certain scope it performed as designed, allowing users of different systems to exchange drawings. As well, a user could archive its drawings with IGES and open them years later with a different system.
A major limitation to simple CAD exchange surfaced in the manufacturing industry. For an automated manufacturing system, there is often more to drawings than the graphical information. Some drawings are essentially a graphic user interface to a computer controlled manufacturing process. For instance, what appears to be a circular element on a drawing could well drive a machine that selects the correct drill bit and drills the hole. In such a drawing the graphical elements are only a small portion of the value, yet when the drawing is exchanged using IGES, only the graphical elelments remain.
If Only We All Used the Same Data Model
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ISO15926Primer_18_ShortHistory_a.jpg
(56.4 kB) - added by gordonrachar
13 years ago.
A Short History of ISO 15926
