In both cases models are used to predict future behavior. Barometric pressure and other data are the “raw material” for weather models. For you, it’s quantitatively measuring key customer outcomes in the front-end of innovation. Your model lets you replicate the customer experience… so you can know with confidence how they’ll react to any of your product designs.
The “Build-Measure-Learn” cycle in Lean Startup begins with a hypothesis, and is great for B2C. End-consumers can seldom tell you what will amuse them or increase their sense of self-worth. But knowledgeable B2B customer can predict their desired outcomes. So start with a “Learn” pre-step. Customers will tell you all you need if you know how to ask.
More in white paper, Lean Startup for B2B (page 3).