An acclaimed engineer, author, and academic, Dr. Ivar Jacobson contributes to creating and establishing best practices in the software industry. He is one of the inventors of components and component architecture, the notion of use cases, the Unified Modeling Language, and the Rational Unified Process. He has contributed to modern business modeling and aspect-oriented software development at Ericsson and Objectory, a company he founded, now part of IBM. In 2004, Ivar founded Ivar Jacobson International which focuses on using methods and tools in an agile and lean way. He now leads SEMAT, a worldwide network dedicated to revolutionizing software engineering practices through Essence.