In a sense, Jim Rumbaugh and Mike Blaha are two of the "founding fathers" of UML. They invented UML, the basis for UML, along with Booch notation. Their first edition was crucial to the development and adoption of Object-Oriented methods when they were in their infancy. Blaha is a worldwide consultant and is a partner with Modelsoft Consulting, and SentientPoint Corporation. He is active in the IEEE Computer Society. Rumbaugh is a Distinguished Engineer with the Rational brand of IBM and is one of the original co-designers of UML. He is a highly influential author.