Lean Customer Development (Cindy Alvarez)
Problem
Products often fail because they solve problems customers do not have.
Action
Talk to potential customers to confirm they have a real, important problem before building.
Outcome
You reduce the risk of creating a product that customers do not need.
Chapter: Why You Need Customer Development
Problem
The biggest unknown can invalidate the entire product idea.
Action
Identify your riskiest assumption and test it before exploring lower-risk questions.
Outcome
You reduce uncertainty early.
Chapter: Where Should I Start?
Problem
Feedback from the wrong people leads to poor product decisions.
Action
Recruit interview participants who closely match your intended customers.
Outcome
You gather evidence that better reflects your market.
Chapter: Who Should I Be Talking To?
Problem
What people say they will do often differs from what they actually do.
Action
Ask customers about specific past experiences and actions rather than future intentions.
Outcome
You gain more reliable evidence about customer needs.
Chapter: What Should I Be Learning?
Problem
Interviews alone can miss important details about customer behavior.
Action
Watch customers solve the problem where it naturally occurs.
Outcome
You uncover insights that are difficult to learn through conversation alone.
Chapter: Get Out of the Building
Problem
Unclear success criteria lead to biased product decisions.
Action
Set measurable customer evidence that must be met before accepting a hypothesis.
Outcome
You make product decisions with greater confidence.
Chapter: What Does a Validated Hypothesis Look Like?
Problem
Building unnecessary features slows learning.
Action
Create the simplest minimum viable product to test a single important assumption.
Outcome
You learn faster with less development effort.
Chapter: What Kind of Minimum Viable Product Should I Build?
Problem
Customer needs change as products and markets evolve.
Action
Regularly test product ideas and improvements with current customers.
Outcome
You make changes that better match customer needs.
Chapter: How Does Customer Development Work When You Already Have Customers?
Problem
Customer knowledge becomes outdated over time.
Action
Schedule regular customer conversations throughout the product lifecycle.
Outcome
You keep product decisions aligned with current customer needs.
Chapter: Ongoing Customer Development