Rebecca Wirfs-Brock is founder of Wirfs-Brock Associates. She consults with clients on actual architecture and design projects as well as development practices and methods. She is the originator of the set of development practices known as Responsibility-Driven Design. Among her widely used inventions are use case conversations and object role stereotypes. She was lead author of the classic work Designing Object-Oriented Software (Prentice-Hall, 1990).