The Comparison 2 Flow Spiral Diagram Template is a visual representation of the comparison process. It is an easy way for people to compare two or more sets of information. The Comparison 2 Flow Spiral Diagram Template is a visual representation of the comparison process. It is an easy way for people to compare two or more sets of information. The template helps people identify the similarities and differences between the two sets of data by displaying them on a circular diagram with different shapes and sizes.