So instead, let's ask a few easy questions.
What's better for making decision, more evidence or less?Can I assume we all agree here? Next question.
What kinds of evidence are better:Still with me?
- user surveys or user observations
- historical data or last week's results
- expert opinion or actual measurements
Which kinds of evidence can you get from:Final question.
- high-level design
How does the above flow of evidence compare to the evidence gained from weekly user tests on working code?
And this is how you explain agile to skeptics: It's EBD -- Evidence-Based Development.