Prioritized Promising with Preemption in Supply Chains

An apparatus comprising:

• interface logic to receive electrical and/or optical signals representing supply events for real world objects, the supply events comprising supply times and supply amounts;
• interface logic to receive electrical and/or optical signals representing demand events for the real world objects, the demand events comprising demand times and demand amounts;
• logic to associate different priorities to different demands;
• logic to form, in a machine memory, a context for each demand priority;
• logic to adjust demand priority context (k) in response to a new demand event of priority k;
• logic to adjust the demand priority contexts k+1 to N in response to the new demand event, where N is the number of demand priority contexts and priority k is higher than priority k+1;
• logic to make feasible any demand priority context k+1 to N that is rendered infeasible by the new demand event.