Abstract: Computerized systems and methods useful for resource-constraint scheduling using visual representations on a graphical user interface to build one or more schedules across a business network, where the schedules are dynamically reconfigured based off real-time changes to resource availability, constraints and requirements that must be satisfied, where interactions by the user with the schedule at the user interface cause the dynamic, real-time recalculation of possible appointments meeting the constraints, after which a schedule is reconfigured and displayed at the user interface.