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APS systems do more than simply sequence operations; they accelerate production flow by managing inter-operation dependencies and start conditions. In traditional planning approaches, the next operation cannot begin until the previous one is completely finished. This often causes unnecessary waiting times, especially in serial and flow-type production environments.
With predecessor–successor operation
dependencies, production stages can overlap in a controlled manner, reducing
the overall lead time.
Scenario: Waiting Problem in a Production
Order of 10 Units
In the example scenario, there is a
three-stage production process consisting of operations 7.1, 7.2, and 7.3:
- 7.1 → PUNCH
Machine
- 7.2 → Press Brake
(Abkant) Machine
- 7.3 → Welding
Machine
Total production quantity: 10 units
In the traditional planning approach, the
Press Brake operation (7.2) cannot start until the PUNCH operation (7.1) is
completely finished. In other words, the second stage cannot begin until all 10
units are processed in the first stage.
This situation causes the Press Brake
machine to wait, increasing the total production time.
Solution: “Production Quantity Required
to Start the Next Operation” Parameter
In the APS dataset, the following
configuration is defined for operation 7.1:
- Total production quantity: 10 units
- Production quantity required to start the next
operation: 7 units
What does this mean?
The system does not wait for all 10 units
to be completed in the PUNCH operation.
Once the first 7 units are completed,
the system can start the Press Brake operation (7.2).
With this structure, operations can
overlap in a controlled manner, enabling a smoother production flow and
reducing overall lead time.
With this structure, operations can
overlap in a controlled manner, enabling a smoother production flow and
reducing overall lead time.
Result on the APS Scheduling Screen
When the scheduling process is executed,
the following situation can be observed on the Gantt screen:
- While operation 7.1 is still in progress
- Operation 7.2 has already started
- Afterwards, operation 7.3 also becomes part of the
production flow
This situation demonstrates that the
system correctly applies the quantity-based start criterion.
Operations are no longer planned with a
“wait and start” logic, but rather with a “flow-based progression” approach.
Impact of This Approach on Production
In this scenario:
- The Press Brake (Abkant) machine does not wait
for operation 7.1 to be fully completed
- Idle capacity does not occur in the
production line
- Total lead time is reduced
- Production progresses in a more balanced and
continuous manner
This approach provides significant
time savings, especially in multi-stage production lines.
Conclusion: Faster Production with
Controlled Overlapping
Thanks to the “Production Quantity
Required to Start the Next Operation” parameter defined in Dynami APS,
the flow between operations becomes dynamic.
This method:
✔ Reduces waiting
time between operations
✔ Decreases total lead time
✔ Optimizes resource utilization
✔ Enables a flow-based production approach
For companies seeking speed and
flexibility in production, quantity-based start criteria provide a powerful
planning advantage.
Planning Results: Lead Time and Makespan
Analysis
These planning outputs clearly
demonstrate the time performance of the production system through concrete
data. Through Makespan and Lead Time analyses, the efficiency level of the
operational flow has been evaluated, and potential improvement areas in resource
utilization have become visible. This structure provides a strategic foundation
for shorter delivery times and greater operational control.




