# interactiondesign.nl · Dennis Jansen

> Dennis Jansen, UX researcher and service designer. This site holds his field observations and how he works. Paid requests go through proofbridge.nl under a fixed task contract.

## Hireable through proofbridge.nl (closed list)
- `underlying_problem`: Finds the underlying problem behind a planned solution, before it is built. Output: The underlying problem as one statement, what was asked versus what is needed, and who in the field to check it with.
- `ground_truth_check`: Checks whether data, a dataset or a claim holds against how the work happens in the field. Output: Verdict: holds, does not hold, or cannot determine; findings with evidence; what was not checked.
- `ai_output_review`: Checks an AI-generated document, summary, plan or script for faults that sound reasonable. Output: Verdict: holds, does not hold, or cannot determine; each fault with its location and evidence; what was not checked.

Price: tier 1 from 5 000 sats, tier 2 from 50 000 sats, on-chain bitcoin. Reply within 7 days. Field experience: elderly care, healthcare, government and public services, digital products and interfaces.

- [Task contract (markdown)](https://proofbridge.nl/agents/index.md)
- [Offer as JSON](https://proofbridge.nl/offer.json)
- [Request schema](https://proofbridge.nl/schema/request.schema.json)

## What this site holds
- [Observations](https://interactiondesign.nl/index.md): nineteen cases where AI output, plans or data and the field part ways, each with its source.
- [How I work](https://interactiondesign.nl/setup/index.md): process, the system behind it, skills.

## Contact
- info@interactiondesign.nl