Narrated by the author of the research onion, this video is about Saunders et al.'s Research Onion. It outlines the purpose of the onion, explains each of the onion's layers and poses a series of questions that you need to consider when designing your research. It emphasises the need for methodological fit. Links to a downloadable copy of Chapter 4 of "Research Methods for Business Students" and the Research Onion diagram are given along with further reading.
This video is also available in two parts: Part 1 The layers of Research; Part 2 Use and Methodological Fit.