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

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Rami Kaibni
Community Champion
Senior Projects Manager | Field & Marten Associates New Westminster, British Columbia, Canada
While answering a question on PMChallenge on the website, I bumped into this question with the following choices in terms of answers:

A- The logical relationship that exists between each activities.
B- A shared resource between one activity and another.
C- Critical Path
D- None of the Above

I chose "A" for an answer but it was wrong the they gave the correct answer as "D".

Well, first, starting with the question itself, AON uses boxes or rectangles which represent activities and not circles and as per PMBOK, the activities are linked by one or more logical relationships to show the sequence of activities so the arrows should be represnting these logical relationships.

It is either the Question and/or Answer are wrong or there is something that I did overlook or did not understand properly.
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Sergio H. Raspo Self employed| self-employed San Guillermo, Argentina
Rami:
I Agree with you, for me the answer is A option. Could be a wrong answer in the the program?....
maybe it's valuable to be in contact with someone on PM Challenge to confirm the answer. see you
...
1 reply by Rami Kaibni
Mar 08, 2017 2:34 PM
Rami Kaibni
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Thanks for the Input Sergio - As per our fellow colleague here, there answer was corrected on the PM Challenge. Cheers !
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Rami Kaibni
Community Champion
Senior Projects Manager | Field & Marten Associates New Westminster, British Columbia, Canada
Mar 08, 2017 2:28 PM
Replying to Sergio H. Raspo
...
Rami:
I Agree with you, for me the answer is A option. Could be a wrong answer in the the program?....
maybe it's valuable to be in contact with someone on PM Challenge to confirm the answer. see you
Thanks for the Input Sergio - As per our fellow colleague here, there answer was corrected on the PM Challenge. Cheers !
avatar
Demetrius Williams Atlanta, Ga, United States
Hi Rami, I have been looking online to see if there is another explanation; but I am not finding anything. I found this "The Precedence Diagramming Method (PDM) consists of rectangles, known as nodes, and the project activities are shown in these boxes. These rectangular boxes are connected to each other with arrows to show the dependencies; therefore, these diagrams are also known as the Activity on Node (AON) diagrams." from PMStudyCircle.com. I think I have seen some other questions which I have not agreed with the PMChallenge when I used the tool sometime ago. Hopefully the team at PMI and ProjectManagement.com will look into the questions like this again; especially with the changes in the PMBOK coming, I am sure there will be others.
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Demetrius Williams Atlanta, Ga, United States
I think I just found the answer... The arrows show activity dependencies. I believe this is why it is D. Yes, it should relationships but is this the BEST answer?
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1 reply by Rami Kaibni
Mar 08, 2017 11:59 PM
Rami Kaibni
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I am not sure D is the most correct answer because other colleagues of ours mentione recently that this question has been corrected and the answer now is A.
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Rami Kaibni
Community Champion
Senior Projects Manager | Field & Marten Associates New Westminster, British Columbia, Canada
Mar 08, 2017 9:06 PM
Replying to Demetrius Williams
...
I think I just found the answer... The arrows show activity dependencies. I believe this is why it is D. Yes, it should relationships but is this the BEST answer?
I am not sure D is the most correct answer because other colleagues of ours mentione recently that this question has been corrected and the answer now is A.
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