PRIORITIES
Represent the negotiated order of preferences and objectives.
Smart Scheduling Devices
Four explicit scheduling mechanisms used to model the conditions that interact with the six classes of constraints.
DISCONTINUITIES
Represent work calendars, imposed dates, stoppages and allowed periods.
AVAILABILITY
Represents quantity and timing of human, equipment, material and financial resources.
PROCESS KEYS / TAGs
Represent service authorizations, number of simultaneous fronts, access limits and other route-control attributes.
4 × 6
The method’s recurring formulation is not “four devices for one fixed answer”, but four mechanisms that help the scheduling engine place stakeholder desires inside what is technically and operationally feasible.