Comparison - Besides limiting the number of ideas and amount of text, the placement of notes on your matrix will give you a bird’s eye view of how the authors’ ideas relate to other author’s ideas. By labeling the ideas that pertain to your question, you can see where authors agree and disagree – and where other authors ignored an idea altogether. (You may want to find out why.) As you fill out your matrix, themes will start to emerge where do disagreements arise, which ideas seem to gain consensus among authors, and so on.