Start to Start (SS) network diagram Lag is the delay of a successor activity and represents time that must pass before the second activity can begin. There are no resources associated with a lag. Lag may be found in activities with all relationship types: finish-to-start, start-to-start, finish-to-finish, and start-to-finish.
Start to Start (SS) network diagram example with lag
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Good explanation, exactly what I looked for. Thanks!