Title says it all 
I believe showing column labels instead of technical names is more useful to the end users.
Best regards,
Damien
Nice to meet you @dacou 
I guess that you’re mentioning to the relationship diagram in our dataset, not the diagram in modeling tab:
Please correct me if I misunderstood anything.
If yes, I totally agree that we should show the field label instead of field name, because we are using field labels in dataset. I’ll forward your feedback to our UX team for further improvements. Thank you sm
Hi @di.hoang , yes i’m mentioning the relationship diagram in the dataset. 
Actually, I don’t know where to find the other “diagram in modeling” that you are mentioning. I’m using modeling 4.0, is it still there ?
Oops, I thought that you were using modeling 3.0 @dacou Sorry for my misunderstanding 
Never mind, I’ll forward your feedback to our UX team for further improvement. Hope that it will be improved soon