Five situations. For each one, name the ECO domain that owns it: I, II, III, IV or V. No task titles needed. Ten seconds each. This one is for everyone who has asked whether you need to memorise all 37 task titles. You don't need them word for word. You need to recognise who owns the work from the verb and the purpose in the situation. Let's test that. Q1. The data scientist has finished cleaning and feature engineering. Before any training starts, the AI project professional validates the transformation results and decides whether the data is ready for model development. Q2. The data science team needs compute for training, a secure development environment and a version control system. The AI project professional coordinates getting all three in place. Q3. The model has been evaluated against the agreed success criteria. The sponsor now wants the final approval decision on whether it can be deployed. Q4. The AI project professional keeps a record of every model development decision, who approved each go/no-go point, and the chain of custody for the training and test data, so an external regulator can later reconstruct how the system was built. Q5. Before anything is built, the team compares the proposed AI approach against a conventional rules-based alternative and checks whether the organisation has the computing resources and the readiness to support it. HOW TO PLAY Reply in one line, like this: Q1 ?, Q2 ?, Q3 ?, Q4 ?, Q5 ? A numeral can be the answer more than once, or not at all. Then open the first comment for the answer key, check yourself, and vote your score in the poll below. Got 5 out of 5? Tell us which one nearly caught you.