Work communities and knowledge sharing in practice Jack Whalen, Xerox PARC Writings on knowledge management and, more generally, the role of "knowledge capital" in organizations have tended to present abstract epistemological models concerning types of knowledge or differences between "information" and "knowledge," with anecdotal examples loosely used to illustrate the ideas and their business significance. What are missing are the concrete, empirical details of how "knowledge" actually works in organizational life. In this talk I will sketch out this kind of more detailed account of a knowledge-sharing system in actual practice. The system leverages the practical know-how and inventions of frontline employees, and was as much an experiment in organizational change as it was in information system design. This system and its enabling technology was developed through several iterations using a distinctive socio-technical methodology, and is now deployed worldwide in Xerox Corporation's service organization. I will provide a precis of our methodology, and summarize the challenges that were faced in bringing such a change into the corporation. Biography Jack Whalen is a member of the Scientific and Engineering Reasoning Area in the Systems and Practices Laboratory at Xerox Palo Alto Research Center (PARC), working on the design and deployment of systems to support knowledge sharing in work communities, the design and use of artificial intelligence applications in the workplace, and understanding the problem of "documents in action" (how the use of both digital and paper documents actually enters into the detailed organization of practical activities) with a special focus on mobile and home office work. He received his Ph.D. in sociology from the University of California at Santa Barbara, and joined PARC after three years at the Institute for Research on Learning in Menlo Park, where he was Senior Research Scientist, and eleven years at the University of Oregon, where he was Associate Professor of Sociology and Department Head.