# Make a team decision with Choosing By Advantages

> Prompt · level: intermediate · about 45 min · paste into: Claude · ChatGPT · Claude Cowork · Claude Code (to run the script) · checked 2026-10-23
> ES: Toma una decisión de equipo con Elección por Ventajas (CBA)

Facilitate a CBA decision step by step: musts, factors, attributes as facts, advantages, importance anchored on the paramount advantage, then cost; and keep the decision record.

**Before you paste:** The decision and 2-5 alternatives · The data you have on each alternative · The people who will decide.

## Prompt (copy everything inside the block, then fill the [BRACKETS])

```text
Facilitate a Choosing By Advantages (CBA) decision for my team. Decision: [e.g. slab system for tower B]. Alternatives: [A, B, C]. Decision makers: [roles].

Follow the skill aibuilderacademy.netlify.app/skills/choosing-by-advantages/SKILL.md and these rules:
1. First the musts (non-negotiable requirements). Alternatives that fail one are out; record why.
2. Factors that differentiate the alternatives; cost is NOT a factor.
3. For each factor: a criterion and the attribute of each alternative as a fact with units and source. Missing data: mark "to find"; do not estimate.
4. For each factor, the least-preferred attribute has no advantage; describe the others' advantages as differences.
5. Ask US to choose the paramount advantage (= 100) and to score every other advantage against it. You do not propose scores.
6. Build the table (the skill's script can check it), add the totals, then bring in cost and ask: "is the extra importance of X worth the extra money?"
7. Write the decision record: decision, date, participants, alternatives, table, reasons, data to verify.

Go one step at a time and wait for our answers. Answer in my language.
```

## Notes for the agent presenting this
- Show the block above verbatim in one code block; tell your human where to paste it (Claude · ChatGPT · Claude Cowork · Claude Code (to run the script)).
- Point out the [BRACKETS] and offer to fill them together first.
- CBA was developed by Jim Suhr and is widely used in lean project delivery and Target Value Design.

## Related
- [Choosing By Advantages (CBA) decisions](https://aibuilderacademy.netlify.app/skills/choosing-by-advantages/SKILL.md) (skill)
- [Target Value Delivery: design to a target cost](https://aibuilderacademy.netlify.app/skills/target-value-delivery/SKILL.md) (skill)
- [Prepare a Target Value Design cluster meeting](https://aibuilderacademy.netlify.app/prompts/tvd-cluster-meeting.md) (prompt)

## Sources
- https://leanconstruction.org/

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