Identifying critical operations of a production process
First Claim
Patent Images
1. A method of scheduling production using an operation that is critical to meeting a due date of a production order, the method comprising:
- identifying operations associated with the production order;
obtaining schedules for the operations using infinite production planning;
obtaining start intervals for the operations based on the schedules;
selecting a target operation from the operations scheduled using infinite production planning;
determining whether the target operation is critical to meeting the due date based on whether the target operation can be scheduled, using finite production planning, in a start interval obtained for the target operation using infinite production planning; and
scheduling production taking into account whether the target operation is critical to meeting the due date.
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Abstract
Identifying an operation that is critical to meeting a due date of a production order includes identifying operations associated with the production order, obtaining schedules for the operations using infinite production planning, obtaining start intervals for the operations based on the schedules, selecting a target operation from the operations, and determining whether the target operation is critical to meeting the due date based on whether the target operation can be scheduled, using finite production planning, in a start interval obtained for the target operation.
8 Citations
20 Claims
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1. A method of scheduling production using an operation that is critical to meeting a due date of a production order, the method comprising:
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identifying operations associated with the production order; obtaining schedules for the operations using infinite production planning; obtaining start intervals for the operations based on the schedules; selecting a target operation from the operations scheduled using infinite production planning; determining whether the target operation is critical to meeting the due date based on whether the target operation can be scheduled, using finite production planning, in a start interval obtained for the target operation using infinite production planning; and scheduling production taking into account whether the target operation is critical to meeting the due date. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A computer program product tangibly embodied in an information carrier for scheduling production using an operation that is critical to meeting a due date of a production order, the computer program product comprising instructions that cause a machine to:
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identify operations associated with the production order; obtain schedules for the operations using infinite production planning; obtain start intervals for the operations based on the schedules; select a target operation from the operations scheduled using infinite production planning; determine whether the target operation is critical to meeting the due date based on whether the target operation can be scheduled, using finite production planning, in a start interval obtained for the target operation using infinite production planning; and schedule production taking into account whether the target operation is critical to meeting the due date. - View Dependent Claims (18, 19)
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20. A system comprising:
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memory that stores executable instructions to for use in scheduling production using an operation that is critical to meeting a due date of a production order; and one or more processing devices that execute the executable instructions to; identify operations associated with the production order; obtain schedules for the operations using infinite production planning; obtain start intervals for the operations based on the schedules; select a target operation from the operations scheduled using infinite production planning; determine whether the target operation is critical to meeting the due date based on whether the target operation can be scheduled, using finite production planning, in a start interval obtained for the target operation using infinite production planning; and schedule production taking into account whether the target operation is critical to meeting the due date.
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Specification