The Lean Product Playbook

Viewing product-market fit in light of this model, it is the measure of how well your product (the top three layers of the pyramid) satisfies the market (the bottom two layers of the pyramid).

Viewing product-market fit in light of this model, it is the measure of how well your product (the top three layers of the pyramid) satisfies the market (the bottom two layers of the pyramid).

A product is a specific offering intended to meet a set of customer needs.

Product-Market Fit Pyramid, breaks product-market fit down into five key components: your target customer, your customer's underserved needs, your value proposition, your feature set, and your user experience (UX).

One aspect of delight is aesthetics—ensuring that the product looks appealing.

Usability expectations would be quite different for a product intended for highly trained power users as opposed to one for a mainstream consumer market.

The more user effort required to take an action, the lower the percentage of users who will take that action.
The less user effort required, the higher the percentage of users who will take that action.

deliberately use the term “feature chunk” instead of feature to remind readers that you should not be working with items that are large in scope, but rather breaking such items down into smaller, atomic components.

your MVP, you want to identify the minimum functionality required to validate that you are heading in the right direction. I call this an MVP candidate instead of an MVP because it is based on your hypotheses. You haven't yet validated with customers that they agree that it is, in fact, a viable product.

unnecessarily risk wasting resources with an initial product scope that is too large. You do not have perfect information about all those customer needs. There is quite a bit of uncertainty in both your hypotheses and in what you think you know. That's why you want to start off by identifying the minimum viable product.