Explains impact analysis as the downstream closure of lineage
Every object reachable forwards from the changed one, through views and manual steps, not only its direct consumers; an object outside the closure is unaffected unless a lineage edge is missing (DMBOK2 ch. 12 §4.1).
Can AI do this?
People still lead Few or none of the tested AI models showed they master this. 0 of 4 models in the current benchmark master it.
| Model | Tier | Probability of mastery | Status |
|---|---|---|---|
| gemini-4-argon | Flagship | 100% | Not shown |
| gemini-3.5-flash-lite | Low cost | 100% | Not shown |
| gpt-6-luna | Low cost | 100% | Not shown |
| claude-haiku-5-5 | Low cost | 100% | Not shown |
Mastered means a probability of at least 90% that the model has this knobit, estimated from its graded answers. “Not shown” means the answers do not settle it either way. How the models are tested.
What it looks like in practice
Expected result: Every object reachable forwards from the changed one, through views and manual steps, not only its direct consumers; an object outside the closure is unaffected unless a lineage edge is missing (DMBOK2 ch. 12 §4.1).
How it is assessed: Answers a written question on the downstream closure correctly
Related knobits
Builds on
Needed for
- M-601 Recognises a downstream report missed through a view
- M-603 Recognises an impacted object missed through a manual step
- M-606 Recognises an unreached object listed in an impact analysis
All 9 knobits of Analyse the impact of a change.
Source: Practice the stage 6 reference and review checklist rest on