Gertrud Bjørnvig is an independent consultant focusing on agile software development. During her twenty years in software development, she has been working at Scandinavian companies such as TietoEnator and Navision. As a use case expert, she has worked closely with test specialists and usability specialists to find a common ground in use cases that can support improved quality as well as improved usability in the final product. Gertrud has published Patterns for the Role of Use Cases," and she is a founder of the Danish Agile User Group. Email Gertrud at [email protected].