Most of the content in the journal Open Learning is (ironically) closed, but once in a while a rare open article will pop out into my search results. Just so with this 2015 article, which I viewed today. This article describes the results of 3 intensive workshops, over the course of which a total of 20 design patterns were developed from shared narratives of successful practice. The patterns are described in detail in Table 1 (you'll have to click on the link to view them). Table 2 organizes them according to design domain.