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John Vlissides

American Software scientist (1961-2005) · United States · On the map · Scientists · Died at 44

John Matthew Vlissides was a software engineer known mainly as one of the four authors of the book Design Patterns: Elements of Reusable Object-Oriented Software. Vlissides referred to himself as "#4 of the Gang of Four and wouldn't have it any other way".

John Vlissides is read about 14 times a day, in 11 languages.

A typical day, 30 days to 14 June 2026

The middle day of the days counted, so one week of news cannot move it. The line under it is the last 60 days, one point a day.

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