I've found such information "A primary output of the HCP analysis is a detailed list of the hidden critical paths (and near-critical paths) within the project, and the tasks requiring the most management attention. These "hidden critical tasks," often numbering in the dozens or hundreds, are key tasks on which project managers might not otherwise know to focus their attention. Other portions of the report detail actual flaws and inconsistencies in the schedule, hidden risk factors and various opportunities for improving the overall schedule."(c) I hope it would be useful