One method, five levels of responsibility
Every book applies the same four quadrants: Structure it, Understand it, Choose tools, Build it. What changes from Level 1 to Level 5 is who is affected when it goes wrong: at Level 1 only you, at Level 5 everyone who relies on what you run.
How to read the matrix
5 books
Swipe sideways to compare responsibility levels. Track names stay visible while you browse.
Build
Make something that runs
| Track | L1UserOnly you | L2Power userYour team sees a bad document or a wrong figure | L3BuilderColleagues depend on something you built | L4IntegratorCompany or lab systems and real data are in the loop | L5OperatorWork stops when it breaks, and it must survive you leaving |
|---|---|---|---|---|---|
| Track 06Build apps | T06-L01NEWBuild a Small Browser Tool You Will Actually Use | T06-L02Build a Small Shared Tool From a Prompt, and Test It With a Colleague | T06-L03Turn Your Team App Into One Colleagues Can Depend On | T06-L04Put Your Team App on the Organisation's Own Database, and Prove You Can Restore It | T06-L05Run the App Others Depend On, and Hand It Over |
Every book keeps its address even while its title and content evolve.