Lesson 3: Mapping the systems your tool will lean on

Module 6 · Lesson 3 · About 40 minutes · Needs: Module 4 Lesson 1 (the TMS export, the CRM API); Lesson 1 of this module (groups and roles)

The situation

Tuesday 21 April 2026, week 6. The change request for the pilot goes to Viktor on Thursday. He stops you in the corridor: "Before it goes in, I want every system your tool touches, who owns each one, and what happens to it if your tool misbehaves."

You answer by tracing one exception: HF-88207, the bent desk frames for Atlas Office Furniture, declared value £6,500. Dev owns it, Tom must approve any payment, and it touches eight systems that you did not build and do not own.