[leftnode]

Unless the management bought a general scheduling system and not one specifically made for the restaurant business, then this is the fault of the software developers for building a system without doing the appropriate market research first.

[3ch0]

I do believe this is a general restaurant booking system. By looking at the URL in the image you can see that this is a online based restaurant booking system.

Usually these smaller swedish restaurants doesn't have any management and the owner is usually the headwaiter.

[SyneRyder]

It was made specifically for the restaurant business. Look closely at the last screenshot. You can see that it's a web app running in Chrome. The URL is visible, and the website is a "reservation service for restaurants".

Also of interest: the company uses a freemium model.

[robocat]

Perhaps the payment model for the web app is "pay €1 for each ticked booking" rather than "pay €1 for each booking made".

That would explain the use of felt pen as a financial incentive, rather than as a UI fault...