Practical guides
Compare options with explicit criteria
A useful comparison makes the decision understandable. Start with requirements, then compare documented values. An attractive overall score can hide a missing essential condition or an unsupported assumption.
Method
1. Fix the criteria
List mandatory requirements before preferences. Define units and the same scope for each option. If weights are used, explain what they represent rather than letting AI choose them silently.
2. Collect comparable evidence
Record source, date and conditions for each value. Mark missing data as unknown, not zero. Separate advertised specifications from measurements you actually observed.
3. Test the choice
Look at trade-offs and change one weight or uncertain value. Check whether the preferred option changes. Explain why you choose it and which unanswered question could reverse the decision.
Example to adapt
Compare these two fictional project plans by total cost, delivery time and maintenance. Use only the supplied values, show unknown fields and identify the mandatory requirement that could exclude either plan.
Checklist
Checks stay on this page; ticking a box does not automatically validate the result.
Deliverable
A comparison table, stated assumptions and a reasoned choice.
Limitations
A ranking is not a recommendation for everyone. Do not infer current prices, suitability or availability from an unsupported AI response.
Sources for further reading and checking
These independent resources help you find a reference. Check the language and scope: a French resource may not describe rules in another country. These are not sources automatically consulted for generated answers.
- NIST — Generative AI Profile (AI 600-1)
A generative AI risk profile for identifying and managing risks.
Language: en · Scope: US - CNIL — IA générative : questions-réponses
Questions and answers on using generative AI and protecting data.
Language: fr · Scope: France / UE
Link check: 2026-10-06 · These links are reading resources. The answer service does not consult them automatically. A checked link does not guarantee every document is current.