Earlier you had had to know different technologies than today's to design and build HMIs.
By the way we will issue a short article on HMIs soon.

Image is a courtesy of ALES (TETS2)

Earlier during our Mentorship program we discussed Carrer paths in Automation.

When you are in the beginning of your engineering path you may come to plant and amaze how systems and configurations behind it are big and complicated.
This also may frustrate you on thoughts how endless is what you need to learn.
But remember, what you see
1. Was build in years
2. Was build by teams or several people
3. Was build by using earlier projects templates

I want to focus on the 3rd part - using templates. No one professional builds things from scratch. When someone builds the logic he uses functional blocks and scripts from other projects. The same is with installation, HMI, even with drawings and documentation.

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