In this video, you will learn how to draw a Network diagram for a project using the Activity on Arc method. You will also learn the use of multiple dummy activities in a network diagram.
Well explained, thank you very much. On the contrary, there are too many dummy arrows you drew there which I suggest needed to be reduced because they will complicate the calculation processes of the numerical part after this.
but at the end J is violating the rule. a rule is no more than 1 activity can start and end on the sane node but at the node 9 their are 3 ending activities
I also got it this way. In my diagram, activities GHI have their own outputs. Then the two recent outputs feed into (with dashed arrows) into the latest, and then activity J stems from it, ending up with yet another (final) output. I also think that node 1 should not be there. If nodes represent outputs, then we have no output from the very beginning. We start with an activity, i.e. with an arrow, not with a circle numbered 1.
