Constraints create the shift work schedule
The critical thing to remember is that constraints create the shift work schedule.
We have three main points:
- 1. We, human beings, make Constraints.
- 2. The machine (optimized scheduling solver) calculates the solution that satisfies them.
- 3. You can achieve your ideal assignments by adjusting the weight of constraints.
How do you create a work schedule for nursing and caregiving as you wish? 
The answer is to master the constraints.
You must give the computer the proper instructions to break away from paper, pencil, and Excel and let the computer do the solving.
There is only one word and one way to tell the computer what to do. Constraints.
The best way to master “constraints” is to move them around and learn how they work.
In this tutorial, you will start with a simple example and gradually move on to more complex ones.
This tutorial explains the key points above using an example of a two-shift work schedule commonly used in Japanese nursing homes.
After you have mastered how to constrain it, you can replace them with the rules for facilities in your country.