Ask HN: How do you translate functional requirements to a technical plan?

Hi HN,

I've been in software engineering for about 15 years but never found a way to get to a well structured technical (implementation) plan from a set of functional requirements. Sure, I eventually get to a plan when asked, but I find my approach lacking structure and therefore each of my plans are structured differently, and am getting mixed results.

I consider myself very strong technically, familiar and experienced with many SE practices on both design/architecture and implementation side.

How do you approach work like this, and do you follow a specific structure?

Thank you.