Another query

I have written a blogpiece that I want to post, but I cannot think of a particular word. can anyone tell me a word, beginning with "c" that roughly means "a comprehensive list or categorization, that seeks to take into acount all the permutations"? I'm drawing a blank, though it was clear as a bell last night. (An example of this kind of thing would be an animal classification chart, but "classification" isn't the word.) As soon as my brain uncramps, I can finish the blog. Plus, I owe you some more wine comments, and I found a couple of really outstanding ones last week.