User Driven Workflows for the Collaboration of Grid Services

Abstract – In the past five years ‘The Grid ’ emerged as one of the most important new developments in building the computing and data management infras-tructure for science, business, health, and society in the 21st century. This paper deals with the development and organization of the knowledge discovery processes in Grid environments, especially, with the collaboration and coordination of a set of OGSA based Grid services developed within our Grid knowledge discovery system called GridMiner. One of the kernel parts of GridMiner is an advanced workflow component, which can be also included into other Grid systems implementing applications having non-trivial workflow requirements. I