PSD.12:8 - Common Anti-Patterns and How to Avoid Them

Anti-pattern	Repair
“The winner is robust” after a few small perturbations.	State the claim, variation region, method, and untested failure mechanisms.
Count successful scenarios as a success probability.	Supply a qualified probability measure or report conditional coverage only.
Change one input at a time despite common-cause failure.	Test the relevant joint conditions under a justified dependence model.
Treat the largest output variance as the best information target.	Ask whether attainable information can change a decision or eligibility.
Recommend a pilot whenever evidence is thin.	Establish information value, safety, timing, reversibility, and response feasibility.
Change the robustness criterion to preserve the preferred option.	Show the different questions and return the criterion disagreement.