Ralph E. Johnson is a Research Associate Professor in the Department of Computer Science at theUniversity of Illinois at Urbana-Champaign. He is a co-author of the influentialcomputer science textbookDesign Patterns: Elements of Reusable Object-Oriented Software, for which he won the 2010 ACM SIGSOFT Outstanding Research Award.^[2] In 2006 he was awarded theDahl–Nygaard Prize for his contributions to the state of the art embodied in that book as well.^[1]

Johnson was an early pioneer in theSmalltalk community and is a continued supporter of the language. He has held several executive roles at the ACM Object-Oriented Programming, Systems, Languages and Applications conferenceOOPSLA. He initiated the popular OOPSLA Design Fest workshop.

• Ralph Johnson's blog
• Ralph E. Johnson atUIUC
• Interview with Ralph Johnson fromOOPSLA 2009, discussing Parallel Programming Patterns
• Presentation on a Pattern Language for Parallel Programming from QCon London 2010

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