Methods and system consistent with the present invention provide a workflow modeling and project planning integration tool that allows a user to model a business process or workflow, to create and activate a project plan based on the workflow, and to track the progress of the activated project plan. The tool also allows the workflow to be reused to create more than one project plan based on the workflow. Moreover, the tool simultaneously manages the execution of the plans. The integration tool may include a Web-based "Distributed Authoring and Versioning" (WebDAV) server that operates as a virtual file system for computers on a network to allow more than one user on different computer systems to view the same workflow or project plan, monitor the progress of an activated project plan, or simultaneously create and activate different plans from the same workflow.