In AON, what do the arrows between the circles demonstrate ?

Tim, this is very irrelevant to the subject but thanks for your opinion and point of view. However, I totally disagree for the following reasons:

1- Questions belong under discussions, which is the main purpose of this section.
2- Questions are not sort of article, experience or knowledge sharing so they definitely do not belong under the blog especially that each member is allowed one main blog here.
3- Different questions address totally different subjects.
4- Addressing different questions with different subjects separately makes it easier for people to respond to and give them flexibility to answer the questions they have answers for and leave others without embarrasement.
5- Bundling different questions all together in one big paper will look boring to the reader or some sort of survey and I am positive I won't be receiving the same positive feedback I am receiving at the moment.

I honestly do not understand why do you think addressing different questions seperately makes it harder for people to respond, maybe you can ellaborate more. You are always welcome to address the subject further via Inbox Message as well because our discussion on this matter here is very irrelevant to the question in hand and at the same time, would appreciate your input on the above mentioned question.

Hi Rami, I just thought as you've raised about 15 questions this week they must all relate to the same project, but reading them separately it's hard to piece it together, whereas together it could make a great case study. Best regards

It is, at the same time, the question clearly asks about AON.

It is a very tricky question and PMBOK clearly mentions that arrows represent logical relationships in AON.

Stephane, I agree with this but Answer "D" is not in line with the theoretical facts.

The arrows represent the logical relationships that show "the sequence in which the activities are to be performed" (PMBOK 5, p. 156).

I supposed you can make the case that logical relationships may exist between activities that have nothing to do with their sequencing.

But then I saw Michael's post... ugh...

Hi Tim,

I just noticed your response. Sorry for the very late reply :-)

You are right, it was difficult to piece them together althought I agree if I was able to piece them together, it would have been a good case study.

Thanks for your input and hope to see more input from you on other discussions.

They probably corrected the answer or rephrased the question after posting this question. PMI community engagement specialists take all those discussions seriously and look into them. They do a great job addressing concerns.