Ask HN: How do you develop business processes or workflow?

I have been working at the same company now for almost 12 years. I have worked at much larger companies before, but I noticed at this company that operations and business processes greatly affect the company as the headcount grows.

I remember reading the original E-Myth book years ago and thinking about the how it highlighted the franchise process.

What books or material could you suggest on how to develop business processes and workflow? Ideally it would be something that produces an outcome that could work well with the human element and not just for those with a technology background.