DS heuristic

Use

Scheduling Deallocated Operations

Scheduling selected deallocated operations

Lead Time Reduction

Reducing the lead time for orders at selected resources

Backlog Rescheduling

Rescheduling operations at a resource that lie in the past

Sequencing

Scheduling selected operations in a predefined sequence

Manal Sequencing

Rescheduling selected scheduled operations in a sequence that was previously generated manually

You can use this heuristic only on the DS planning board.

Create Fixing/Planning Intervals

Creation, changing, and deletion of fixing or planning intervals and fixing of operations and deactivation of sequence-dependent setup activities.

Capacity-Driven Order Creation

Creation of a new planned order or quantity increase in an existing planned order to achieve optimal resource utilization during the selected period.

You can use this heuristic only in interactive applications such as the detailed scheduling planning board and the product planning board.

Merging Orders on Container Resources

Merging selected synchronized planned orders at multiresources with storage characteristics (container resources).

You can use this heuristic only on the DS planning board.

Heuristics for Campaign Planning

These heuristics provide the most important planning functions for production campaigns:

·        Create production campaigns

·        Delete production campaigns

·        Create setup/clean-out orders

·        Delete setup/clean-out orders

Stable Forward Scheduling

Clearing backlogs, correcting capacity overloads, adjusting the production schedule for a changed available capacity of resources in the short-term horizon.

Extended Backward Planning

Backward planning with the goal of creating a production plan with balanced capacities. In scheduling the orders, the system orientates itself on the requirement dates/times.

Calculation of critical path

With the heuristic SAP_PMAN_001, you identify operations without a float or with just a small float.

Infinite forward scheduling

You use the heuristic SAP_PMAN_002 if the end date/time of the project or the customer order can no longer be adhered to, meaning that you have to calculate a new one.

The heuristic reschedules the network and determines a new feasible situation.

Infinite backward scheduling

With the heuristic SAP_PMAN_003, you can backward schedule a network of orders starting from the end date/time.

You use this heuristic to achieve a compact network after having reduced planning-based minimum intervals or offsets along the critical path. (See Project Manufacturing and Make-to-Order Manufacturing)