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A four-sided square pyramid viewed from above has been disassembled into four triangles representing each side of the pyramid. In the middle is a thought cloud. The four triangles are labelled Stories, Research, Expert Accounts and Processes to represent different possible types of evidence. Each of these triangles represents four ‘evidence pyramids’ (see previous image long description) with each triangle being sub-divded into three levels of analysis, moving from data at the outside, to information and finally knowledge closest to the centre.