NOTICE: This is the authors’ version of a work that was accepted for publication in the Project Management Journal. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published and can be accessed via the following link: http://onlinelibrary.wiley.com/doi/10.1002/pmj.20254/full PLEASE REFER TO THE RESEARCH IN THIS MANUSCRIPT, IF CITED, AS FOLLOWS: Alin, P., Taylor, J. and Smeds, R. (2011). “Knowledge Transformation in Project Networks: A Speech Act Level Cross-Boundary Analysis,” Project Management Journal, 42(4): 58-75. Knowledge Transformation in Project Networks: A Speech Act Level Cross-Boundary Analysis Pauli Alin, SimLab, Aalto University, Espoo, Finland John E. Taylor, Project Network Dynamics Laboratory, Columbia University, New York, NY Riitta Smeds, SimLab, Aalto University, Espoo, Finland Abstract Researchers stress the importance of understanding knowledge transformation in projects. To explore how knowledge is transformed across organizational and specialization boundaries in project networks, we observed 22 knowledge transformation cases in two project networks. We found that new knowledge was created across specialization boundaries and that knowledge was altered across organizational boundaries. When both organizational and specialization boundaries were crossed, new knowledge was created. From these findings, we developed a set of propositions and formulated these into a model of knowledge transformation in project networks. This research contributes to a better understanding of knowledge transformation processes and outcomes in project networks. Keywords: interorganizational networks, knowledge management, knowledge transformation, project networks