US Patent 8006187 Checkpoint sequence fallout metrics management during path analysis

Tools and techniques are provided for interactive fallout analysis. Checkpoints, such as web pages visited, are defined through user input. As the second and subsequent checkpoints are added, fallout metrics are automatically calculated and displayed for the checkpoint pairs. The user receives fallout information interactively, in response to each change in the sequence of checkpoints, rather than being forced to define all checkpoints and then wait while the fallout metrics are calculated for a batch of checkpoint definition changes. Special coloring or other visualization highlights indicate when the fallout between two checkpoints is total.