It depends on what you are talking about.
The reason why it has to be done a certain way.
Some things, how it is done. Other things, what is done. I was working on the road while they were building a bank and every day when I'd pass it, I'd see a different stage of the construction. But the vault was most interesting to watch. They put up a fr<x>ame then filled it with lots of steel rods (threw them in kind of like pickup sticks). The fr<x>ame was about 12" thick, so it held a lot of rods. Then they poured it full of concrete. But the bank isn't much to look at.<br />
But a large cathedral? I'd much rather see it than the stages of construction. :)
Depends on what s being done. I generally look at the "how" before the "what it does" though, so I guess I am going to say how it is done.