Workflow is the next hot area in Office-based technology and enables workers to share data, enforce process and business rules and work more efficiently, both together and individually. This book is written by a developer and architect with 9 years of experience building Information Worker solutions, including building custom workflow engines and working with existing third-party workflow products. It takes an approach rooted in real world business and technical problems from the Information Worker space and methodically walks through the process of building a solid, useable workflow solution. The author challenges the reader to look at the Office System in general, and workflow specifically, in a new light and to expand their comfort level developing solutions within the Office System. The book is targeted at the serious Information Worker developer, a growing group in IT, who is interested in learning the inner workings of workflow and Office 12, not just in scratching the surface of this exciting new technology.