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AACE International AACE-PSP Exam - Topic 2 Question 38 Discussion

What is the primary difference between the arrow diagramming method (ADM) and the precedence diagramming method (PDM)?
A) ADM is limited to finish-to-start logic relationships, while PDM is not.
B) PDM is a bar chart with network logic, while ADM is a pure logic network.
C) ADM is manual CPM calculations, while PDM is computerized.
D) ADM uses arrows, while PDM uses boxes.

AACE International AACE-PSP Exam - Topic 2 Question 38 Discussion

Actual exam question for AACE International's AACE-PSP exam
Question #: 38
Topic #: 2
[All AACE-PSP Questions]

What is the primary difference between the arrow diagramming method (ADM) and the precedence diagramming method (PDM)?

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Suggested Answer: A

by Shawana at Jul 10, 2025, 07:21 AM

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Maryann
6 months ago
PDM is definitely more flexible than ADM!
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Belen
6 months ago
I thought PDM was just a fancy version of ADM?
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Malinda
7 months ago
Totally agree, ADM uses arrows while PDM uses boxes.
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Nohemi
7 months ago
Wait, is PDM really a bar chart? That sounds odd.
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Mila
7 months ago
ADM is indeed limited to finish-to-start relationships!
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Emeline
7 months ago
I practiced a question similar to this, and I think ADM is indeed limited to finish-to-start, which makes it different from PDM.
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Clarence
8 months ago
I vaguely recall that ADM is more about manual calculations, but I can't remember if PDM is computerized or not.
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Crista
8 months ago
I think PDM is the one that uses boxes and shows more complex relationships, while ADM uses arrows. That sounds right, doesn't it?
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Darnell
8 months ago
I remember that ADM is more limited in its logic relationships compared to PDM, but I'm not sure if it's just finish-to-start.
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Micheline
8 months ago
From what I recall, the main distinction is that PDM is a bar chart with network logic, while ADM is a pure logic network. I'll make sure I can explain that clearly in my answer.
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Candida
8 months ago
Okay, I think I've got this. ADM is the manual CPM calculation method, while PDM is the computerized version. I'll make sure I understand the pros and cons of each approach during the exam.
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Wilda
9 months ago
Hmm, I'm a bit confused on the differences between these two methods. I know one uses arrows and the other uses boxes, but I can't remember which is which. I'll have to review the lecture slides to refresh my memory.
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Marquetta
9 months ago
I'm pretty sure the key difference is that ADM is limited to finish-to-start relationships, while PDM allows for other types of relationships like start-to-start and finish-to-finish. I'll double-check that in the notes.
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Isaac
10 months ago
That's interesting, I never thought about it that way.
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Freeman
10 months ago
I think ADM is manual CPM calculations, while PDM is computerized.
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Rodolfo
11 months ago
As a project manager, I feel like I should know this in my sleep. Time to brush up on my network diagram skills!
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Rodolfo
9 months ago
B) PDM is a bar chart with network logic, while ADM is a pure logic network.
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Verona
10 months ago
A) ADM is limited to finish-to-start logic relationships, while PDM is not.
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Dana
11 months ago
I disagree, I believe PDM is a bar chart with network logic.
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Crista
11 months ago
C) sounds like a joke answer. Of course ADM and PDM both involve CPM calculations, the difference is in the diagramming approach.
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Isaac
11 months ago
I think the primary difference is that ADM is limited to finish-to-start logic relationships.
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Emeline
11 months ago
I'm torn between A) and B). This exam is really testing our project management knowledge!
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Socorro
9 months ago
User 3: Yeah, ADM uses arrows while PDM uses boxes.
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Lorrine
11 months ago
User 2: I agree, PDM is a bar chart with network logic.
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Truman
11 months ago
User 1: I think the primary difference is that ADM is limited to finish-to-start logic relationships.
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Laticia
11 months ago
D) is a bit too simplistic. Both methods use arrows and boxes, the difference is in how they represent the relationships.
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Iraida
10 months ago
B) PDM is a bar chart with network logic, while ADM is a pure logic network.
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Iraida
11 months ago
A) ADM is limited to finish-to-start logic relationships, while PDM is not.
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Ressie
11 months ago
A) seems to be the correct answer. ADM is limited to finish-to-start relationships, while PDM can handle other types like start-to-start and finish-to-finish.
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Mollie
10 months ago
B) PDM is a bar chart with network logic, while ADM is a pure logic network.
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Jamal
10 months ago
A) seems to be the correct answer. ADM is limited to finish-to-start relationships, while PDM can handle other types like start-to-start and finish-to-finish.
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