Criticality analysis in activity-on-node networks with minimal time lags

This paper is a systematic study of the critical nature of activities and r elationships in AON networks with minimal time lags in the unlimited resour ce case, when activity splitting is not allowed. An analysis of all possibl e cases produces an extended and now complete classification of critical ac tivities in six classes: normal, reverse, neutral, bicritical, increasing n ormal and decreasing reverse. We also present a procedure for classifying a ny critical task depending on the early star/finish times and on position w ithin the critical paths.