[thyrsus]

This is how I perceived the difference: >SCIENCE< [a] create a hypothesis [b] collect all the data [c] check the hypothesis and publish; >ENGINEERING< [a] create a hypothesis [b] collect some data [c] refine the hypothesis [d] iterate over [b] and [c] until [e] PROFIT! (and maybe publish someday); the engineering approach is often better funded, allowing more data collection and better validation. If your engineering model is sufficiently deficient your product will be rejected in the market if it can even get to market. If your scientific model is sufficiently deficient, a researcher depending on that model will someday publish a refinement.