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Nick Tchan: Expertise by design

Senior manager, Digital Health Education & Training, eHealth NSW

Nick Tchan has spent decades designing learning for public service organisations. He is senior manager, Digital Health Education & Training, at eHealth NSW.

Nick draws an expert’s choices as a branching tree on a whiteboard while an android pins up practice cards.
What changed

Nick moved from developing content to creating AI design loops and instructional design systems.

What he was up against

Real expertise involves judgement, pattern recognition and decisions made under ambiguity, and it usually takes years of apprenticeship. Nick wanted to shorten that journey: “Instead of treating expertise as a mysterious process, I wanted to treat it as something we can design.”

What he built

Nick built an agentic learning loop that draws out an expert’s tacit and explicit knowledge and turns it into structured learning. This involved several agents:

  • The Questioner keeps the focus on a single whole task.
  • The Analyst reads documents for contradictions, hidden rules and unspoken assumptions.
  • The Interviewer draws out the judgements, decision trees and mental models experts use but rarely put into words.
  • The Scenario Builder turns those into decision landscapes, with several pathways, plausible distractors and realistic ambiguity.

He built them with Supernaut, Foundations’ AI prompt engineer, using his own approach, including how he interviews experts and what they notice that others miss.

“Working with Supernaut and Supernaut-Evals forced me to articulate this entire chain of knowledge-gathering expertise. It wasn’t just ‘give this model some instructions.’ It was: ‘what am I actually designing, and why?’”

Nick TchanSenior manager, Digital Health Education & Training, eHealth NSWFoundations

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