Kent Beck is an American software engineer and the creator of the Extreme Programming which included the rediscovery of Test Driven Development software development methodologies, also named agile software development. Beck was one of the 17 original signatories of the Agile Manifesto in 2001.He attended the University of Oregon between 1979 and 1987, receiving B.S. and M.S. degrees in computer and information science. He has pioneered software design patterns, the rediscovery of test-driven development, as well as the commercial application of Smalltalk. He wrote the SUnit unit testing framework for Smalltalk, which spawned the xUnit series of frameworks, notably JUnit for Java, which Beck wrote with Erich Gamma. Beck popularized CRC cards with Ward Cunningham.Beck lives near Medford, Oregon and works at Facebook.