Systems and methods for the solution to the joint problem of parts order scheduling and maintenance plan generation for field maintenance

16) A computer readable medium with instructions stored thereon that when executed by a computing device causes acts to be performed, the acts comprising:

• receiving a sequence of maintenance actions in an order of a waiting time for each maintenance action, wherein one of the maintenance actions is likely to repair the failure mode, each maintenance action having an associated cost equal to a waiting time cost, an execution time cost and a material cost, wherein the waiting time of each maintenance action is the time required to requisition and receive material required to perform the maintenance action;
• constructing a plurality of different maintenance plans from the sequence of maintenance actions, each maintenance plan including a first requisition and a second requisition, by assigning zero or more of the maintenance actions of the sequence with the longest of the waiting times to the secondary requisition;
• calculating an associated cost of each maintenance plan;
• and
• determining which of the associated cost maintenance plan is lowest.