Presentation by Richard Wallis at Code4Lib 2007 in Athens, GA From Z39.50 to xISBN, they share the limitation of providing a single stream of data from a single source. How to add value to data from one source with relevant data from another, and how do you orchestrate that interaction in a scalable way? A review and practical demonstration of augmentation APIs and their orchestration in a way that would make those used to Unix Pipes principles, feel at home. Less