Dorothy has worked in software testing for over 30 years. Originally from the US, her first job was developing testing tools for Bell Labs in New Jersey. After emigrating to the UK, she worked as a developer for Ferranti Computer Systems in Manchester for 7 years. She developed training courses in software engineering for the National Computing Centre before becoming an independent consultant specialising in software testing. She founded Grove Consultants in 1988. During her 20 years with them, Grove gained a reputation for the high quality of their training materials and presentations, and established a world-wide client base. In 2008 she left Grove to work again as an independent consultant.