Mark Collins-Cope is Technical Director of Ratio Group Ltd., a UK-based company undertaking development, training, consultancy and recruitment in the object and component technology arena (see www.ratio.co.uk). Collins-Cope has undertaken many roles in his sixteen years in the software development industry, including analysis, design, architecture definition/technical lead, project management, lecturer, and writer. His key interests include use-case analysis, software architecture and component-based development and software process. Collins-Cope is also editor of ObjectiveView, a free object