In his blog post titled S3: A Holistic Framework for Evaluating the Impact of Educational Innovations (Including OER), David Wiley sums up and details his thoughts into an evaluation framework with three components: success, scale and savings.
He describes how he defines and measures each of these components. It took me a couple of close readings to understand what he is trying to do with these components. I decided it was first important to understand how components of the S3 framework work together. The above short presentation gives a hint.
#intro2opened