There are two main goals we would like to achieve in analyzing the folding trajectories. First, we would like to address the following issues for individual trajectories: (1) to detect (or predict) significant folding events, including the formation of β-turns, α-helices, and native-like conformations; and (2) to recognize the temporal ordering of important folding events in the trajectory. For instance, between the two secondary structures α-helix and β-hairpin in BBA5, which forms earlier? What is ordering of the two events preceding a β-hairpin formation: formation of two extended strands or formation of the turn?