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DEMONSTRATOR 02 / OWNED BUILD

The shift ends.
The job doesn’t.

See what happens when a whole batch moves through three sequential stages and the schedule respects working time.

Demonstration data

PLAN THE BATCH

Capacity · units per productive hour

CALENDAR-AWARE COMPLETION

Mon 14 Sep
07:45

Straight elapsed-time scheduling says Fri 11 Sep 15:45. It misses lunch, shift end and the weekend.

Productive time4 h
Time between start & finish68 h
  1. 01 / LASERFri 11 Sep 11:45 → Fri 11 Sep 14:45

    150 productive minutes

  2. 02 / FOLDFri 11 Sep 14:45 → Mon 14 Sep 07:15

    60 productive minutes

  3. 03 / FABRICATEMon 14 Sep 07:15 → Mon 14 Sep 07:45

    30 productive minutes

Calendar: workshop local time, Monday–Friday, 07:00 to the selected shift end. Lunch is 12:00–12:30. Saturday is optional; Sunday is closed.

Model: the whole batch completes each stage before the next starts. Each stage is rounded up to a whole productive minute. This example excludes setup time, other jobs, public holidays and material delays.

THE THINKING BEHIND THE TOOL

Capacity is a calendar constraint.

Adding hours to a start time ignores when work can actually happen. A useful schedule carries each dependency into the next available working interval.

Apply this to your operation

Start with the real problem

What changes in your operation?

Tell me where your real process differs. That is where a useful scope begins.

Describe the problem