What you will learn
- Ownership
- Model inventory
- Change classification
- Independent review
Ownership
Ownership identifies who maintains a model, approves its use and responds to failures. A system with no named responsibility can accumulate changes that nobody can explain. Record both primary ownership and escalation arrangements.
Model inventory
A model inventory lists purpose, version, dependencies, data and operating status. Include simple rules and manual overrides where they affect decisions, not only machine-learning components. Unregistered behavior can be as consequential as a complex model.
Change classification
Classify changes by their effect on behavior, data, execution or presentation. A harmless label change and a new sizing rule require different evidence. The classification should follow actual consequences rather than the developer's preferred description.
Independent review
Independent review challenges material assumptions and checks evidence before acceptance. It does not mean a reviewer guarantees outcomes. Record findings, unresolved issues and the decision boundary under which use is permitted.
Worked example
A change described as display cleanup alters a default order quantity. Its behavioral effect makes it an execution change regardless of the label in the ticket.
Try it yourself
Write a change record identifying the actual effect, required evidence, owner and rollback plan for that case.
Show the worked solution
Record the quantity change explicitly, require sizing and execution tests plus authorization appropriate to the system, identify the responsible owner and preserve a known configuration for rollback. Do not approve based on the cosmetic label.
Apply this to your course project
Submit an approval, rollback and incident-evidence package for a hypothetical model change.
Keep the calculation inputs, assumptions and decisions with your work. Practical exercises are self-reviewed; the scored knowledge checks assess the questions shown, not an independent certification of practical competence.