# TorontoStarts customer interview and validation workbook

Companion: https://torontostarts.com/education-coaching/first-90-days/

## Define the assumption
Customer segment:
Problem, in the customer's words:
User, buyer and payer:
Current alternative:
Most important untested assumption:

## Interview five potential customers
For each interview record the date, segment and answers. Keep personal contact details in your own private records.
1. Tell me about the last time this problem happened.
2. What did you do? How long did it take and what did it cost?
3. Who chose the solution and who paid?
4. What have you already tried?
5. What would make changing the current approach worthwhile?

Avoid asking whether someone likes your idea. Describe their past behaviour separately from their opinions about a future product.

## Summarize evidence
Repeated problem:
Frequency and cost observed:
Contradictory evidence:
Existing purchasing behaviour:
What remains unknown:

## Run one test
Hypothesis:
Smallest ethical test:
Budget and time limit:
Measure and denominator:
Decision threshold chosen before the test:
Result:
Continue, change or stop, with reason: