Upstream
Systems theory supplies questions about boundary, structure, function, feedback and environment. It helps translate between fields without replacing their evidence or making every analogy valid.
WORLDVIEW / MAP
How a judgment reaches the world.
This is a reading map of the questions behind the work, not a complete dependency graph. The views constrain and explain one another; practice can revise a skill, a life strategy or the model they came from.
Subject
Development, life and values concern how a person can keep forming themselves, what they want to preserve and what costs they will accept. These choices depend on the person and their circumstances, not on deduction alone.
Execution
Skills organize knowledge and judgment into repeatable action. Results and failures return to the method; local operating facts remain distinguishable from the reusable definition.
A map has a date
Earlier Xuan dependency diagrams preserve how the project was understood at the time. They no longer describe the whole current system. This page is a way into the material, not a live map of every implementation.