System and method of commitment management

The present invention discloses a system for and method of managing a project that includes one or more tasks. In one embodiment the task comprises a first task dependent on a completion of a second task. The system and method allow a user to display the relationship between the tasks and scheduled completion dates. Those in charge of a task can thus be held accountable. The system comprises a server with a memory for storing a data structure corresponding to a commitment relationship for a task between a requester and a performer, the data structure containing task data corresponding to a commitment date for completing the task; a first host for use by the requester, the first host configured to exchange negotiation messages through the server with a second host for use by the performer, the negotiation messages containing data related to a proposed commitment date for completing the task; and a second host for use by the performer, the second host configured to exchange the negotiation messages through the server with the first host.