Abstract: According to one embodiment, a method of initiating and/or routing communications within a system comprised of a plurality of disparate sub-systems is provided. The method includes collecting information from one or more sub-systems regarding participants in the integrated system, wherein collected information includes one or more of schedule, status, and contact information, wherein the collected information is stored in a central directory. A communication initiated by one of the sub-systems is received, and an event is identified within the received communication. A workflow plan is initiated based on the identified event, wherein the workflow plan utilizes collected information to generate workflow-driven communications to one or more participants. The workflow-driven communications is then delivered to the one or more participants.