[analogpixel]

The analogy, not the 1 to 1 translation, is that the architects come up with the ideas and pass them off to the workers to implement.

[dwattttt]

You're still missing a gap in the middle, where someone knows standards & specifications like "this material in a building this tall will collapse when it gets over 12 stories".

[tormeh]

In big enough projects this is the job of a civil engineer. The architect vs engineer fight that ensues is widely memed. This is of course mostly an issue in one-off projects with ambitious architects.