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No Code Required by Jeffrey Nichols, Tessa Lau, Mira Dontcheva, Allen Cypher

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CHAPTER

22

Mashed layers and muddledmodels

Debugging mashup applications

M. Cameron Jones,1 Elizabeth F. Churchill,1 Les Nelson21Yahoo! Research2PARC

ABSTRACT

Programming for the Web is a daunting task, especially when attempting to mash up multiple services and data sources. Many technologies advocated in this book approach this problem by attempting to hide the messiness of the Web from the developer. However, these efforts can complicate the process of debugging as data are passed through multiple transformations and sources of errors are obscured beneath additional layers of abstraction and processing. In this chapter we discuss the issues of debugging Web applications and Web mashups, and we explore how users of the Yahoo! Pipes programming ...

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