The document discusses various methods for evaluating innovations using lean principles. It describes lean evaluation as providing valuable feedback without extensive data gathering and analysis. Some key evaluation methods discussed include innovation accounting, which tracks metrics like user engagement and assumption testing. Other methods covered are scored SWOT analysis, evaluation matrices, and the business model canvas. The document emphasizes using a mixture of input metrics, like money spent, and output metrics, like revenue from new products. It advises starting with a handful of relevant metrics and sticking with them over time to assess innovation trends. Pivoting versus persevering with an innovation is also addressed.