KMO '2009 Fourth International KMO Conference Knowledge management and service science Taipei , Taiwan June 23-24, 2009   The service sector now dominates the economies of the developed world. Service innovation is fast becoming the key driver of socio-economic and increasing academic and commercial research attention.  In order to succeed in developing and sustaining competitive advantage, enterprises must identify challenges and opportunities quickly and succinctly, while managing the transition process in an innovatory manner. This  means that we need to build our futures on knowledge combined with technology and innovation. Knowledge is the key to gaining and sustaining competitive advantage. Understanding knowledge as a key resource for service innovation can be seen as a knowledge management problem. Today most service systems are knowledge intensive systems. However, research in knowledge management and service science (or Service Science, Management and Engineering ¡V SSME), is still in its infancy. This conference aims to bring together researchers from academic and industries to address the importance of this topic. The Fourth International Conference on Knowledge Management in Organizations (KMO) aims at providing an international forum to present and discuss research focused on knowledge management  and service science issues, as well as to shed light on recent advances in knowledge-intensive service systems for organizations. The scientific objective of the conference is to identify challenging problems for the development of knowledge management systems and service systems, as well as to identify future directions of research in the integration of knowledge management and service innovation between academia and industries. This conference calls for papers that offer provocative, insightful, and novel ways developing knowledge management and service systems from different perspectives.