Written by a pioneer in the field, this is a thorough guide to the cost- and time-saving advantages of Flow-Based Programming. It explains the theoretical underpinnings and application of this programming method in practical terms. Readers are shown how to apply this programming in a number of areas and how to avoid common pitfalls. This is a revision of the original book, describing a number of related approaches and uses of the technology that have developed since the book first came out.