What do you call system design, when it's referring to the design of systems in general, and not just computer services?

As in:

- writing a constitution

- designing API for good DX

- improving corporate culture

I intuitively want to call all of those system design, because they're all systems in the literal sense. But it seems like everyone else uses "system design" to mean distributed computer service design.

Any ideas what word or phrase I could use to mean "applying systems thinking to systems that include humans"

Take a look at Systems Thinking: https://en.m.wikipedia.org/wiki/Systems_thinking

Organization design. https://en.wikipedia.org/wiki/Organizational_architecture