Engineering practice is that mind is at first and voice is at next TO SOLVE THE WORST OF THE THE WORST INTO THE BEST OF THE BEST.

In engineering colleges,structural engg and mechanical engg are taught at first and electrical engg and control systems engg are taught at next.
In engg practice,control systems engg and electrical engg are taught at first and mechanical engg and structural engg are taught at next.

Voice is at first and mind is at next in college.
Mind is at first and voice is at next in practice.