I would like to create a graphical representation of a content audit I have done on an intranet.
My purpose is fairly simple: cut through the perception that there is much more content that is much more complex than actually exists. I currently have this data in an Excel spreadsheet including data such as document type, location, and other meta-data that could be used to categorize/group the data into meaningful segments.
I was reading an interesting article by Christopher Detzi and he used a graph/chart that caught my eye:
This seemed like a good way of visualizing this data. Actual numbers combined with a clear visual representation. This type of visualization would help to give the dialogue a sense of proportionality.
I have one direct question: Does anyone know what the name of the above type of graph is (and how might one make it-just Photoshop or are there tools beyond Excel that are used in the industry?).
A supporting question: what other techniques have you used to serve this need?