Abstract: An schedule-control method for managing and controlling projects is described. The method is implemented on components including an electronic user interface, relational database, and computational component. These components are designed to process input data in a well-defined format called a receivable/deliverable (rec/del) format. Using this format, the project is broken down into a series of smaller components or "tasks". Each task involves a contract between a supplier and a receiver, and results in the production of a "product". Suppliers and receivers can enter up-to-the-minute input data in the rec/del format concerning a particular product. Input data are entered through the electronic user interface which can be e-mail or a user-interface computer program. Data are entered into tables of the relational database in the rec/del format. The input data are then rapidly processed with the computational component to generate output data indicating the status of the project.