Modelling, specifying and implementing workflow security in cyberspace

Workflow management (WFM) systems automate traditional processes where information flows between individuals. It addresses the requirement that security for workflow systems need to be specified at the workflow level, and not at the level of the underlying components. One reason why it is necessary to consider security at this level is the dynamic nature of workflow systems, with access restrictions depending on the state of the workflow process. In addition, workflow system may handle many instances of a given workflow specification and needs to be able to protect the instances according to the requirements posed by each.