Ken Schwaber is the owner of the scrummaster trademark, a course in Scrum software development process. He is one of the leaders of the agile software development movement, and a founder of the Agile Alliance. Ken worked with Jeff Sutherland to present Scrum as a formal process at OOPSLA'95. They have extended and enhanced Scrum at many software companies and IT organizations. Wikipedia
The definitive Wikipedia entry for Ken Schwaber. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Ken_Schwaber