- zbs — real, core strength (内功) of the tech foundation for GTD and IV. Zbs (not GTD) is required as architect, lead developer, or for west coast interviews.
- GTD — make the damn thing work. LG of quality, code smell, maintainability etc
- KPI — boss’s assessment often uses productivity as the most important underlying KPI, though they won’t say it.
- productivity — GTD level as measured by __manager__, at a higher level than “effi”
- effi — a lower level measurement than “Productivity”