This document discusses entrepreneurship and idea generation and evaluation. It defines invention as the creation of new products or processes not previously known, while innovation is applying creative ideas to provide useful applications that create value. The document provides examples of innovations developed from inventions. It also discusses various models for types of innovation and sources of innovative opportunities. Methods for idea generation like SCAMPER are presented. The document concludes with questions to evaluate a business idea around solving customer problems, developing a business model, assessing market size and uniqueness, and defending against competitors.