Billionaire SAS co-founder keeps on coding

By Eric Lai, Computerworld |  Development, John Sall, SAS Institute

John Sall doesn't have to work. As one of SAS Institute Inc.'s four co-founders, the 60-year old has a net worth of $3.1 billion, according to Forbes ' estimate, ranking him the 196th richest person in the world (just ahead of George Lucas, Steven Spielberg and Ralph Lauren).

So why does he stay at the Cary, N.C.-based business intelligence giant, 33 years after starting the company with his graduate school professor, James Goodnight, who remains SAS' CEO?

"It's always been my job to be a statistical software developer," Sall said in an interview earlier this week in Chicago, where he was in town for a SAS user conference.

"I've invested my life in it. My net value, it's all vapor, tied up in company valuations. It's not real. I don't go out and buy yachts or do other strange stuff. I spend most of my time working," he said.

Perhaps we can credit Sall's Midwestern roots for his drive. Born and raised in the central Illinois city of Rockford, he earned a history degree at Beloit College in Wisconsin and Northern Illinois University. It was while studying statistics at North Carolina State University that he met Goodnight.

Sall was one of the lead developers for SAS during its first decade. But with the launch of the Macintosh in the mid-1980s, Sall got interested in the computer's graphical visualization capabilities.

He started working on a data visualization tool called JMP (pronounced "Jump") , an acronym for "John's Macintosh Project."

The software took off with the release of a Windows version in 1994. Out of 250,000 users, most run JMP on Windows, followed by the Mac and a small number on Linux.

Its users are primarily research scientists and engineers, as well as manufacturing experts following the Six Sigma methodology. They use JMP to design and record data from experiments, or keep quality control statistics.

For instance, most leading semiconductor vendors have long used JMP to help them improve chip yields, said Sall, though he declined to name any of them apart from National Semiconductor Corp.

Unlike most similar software that are aimed at helping statisticians display and confirm known trends, JMP is what Sall calls a "discovery" tool that helps researchers see and interpret anomalies.

For instance, the Chicago Botanic Garden used JMP to analyze DNA from the tropical breadfruit and determine that the seedless, starchy fruit was created by the deliberate hybridization of two fruits, the breadnut and the dugdug.

Elixir Strings uses JMP to help create its good-sounding, non-breaking guitar strings.

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