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The Open Group OGA-031 Exam - Topic 1 Question 55 Discussion

Actual exam question for The Open Group's OGA-031 exam
Question #: 55
Topic #: 1
[All OGA-031 Questions]

Consider the diagram:

(A diagram showing X, Y, and Z connected to Financial Processing using black diamonds.)

Which of the following is the correct description of the diagram?

Show Suggested Answer Hide Answer
Suggested Answer: A

Comprehensive and Detailed In-Depth

The black diamond notation in ArchiMate represents a Composition relationship, which is used to indicate whole-part relationships between elements.

Financial Processing is the whole (parent element).

X, Y, and Z are sub-functions, meaning they are part of Financial Processing.

Composition is a strong relationship, meaning the sub-functions (X, Y, and Z) do not exist independently outside Financial Processing.

Analysis of Answer Choices:

A. The financial processing function is composed of three sub-functions X, Y, and Z. Correct Answer

Composition relationships in ArchiMate indicate that one element is part of another in a strict, whole-part hierarchy.

ArchiMate 3.2 Specification, Section 6.4.2, defines Composition as a structural relationship where the child elements belong strictly to the parent.

Since Financial Processing contains X, Y, and Z as integral sub-functions, this is the correct choice.

B. The financial processing function aggregates the three sub-functions X, Y, and Z. Incorrect

Aggregation is a weaker relationship in ArchiMate compared to Composition.

In Aggregation, the sub-functions can exist independently, whereas in Composition, they cannot.

ArchiMate 3.2 Specification, Section 6.4.1, states that Aggregation does not enforce a strict whole-part relationship like Composition does.

C. The financial processing function is influenced by the three sub-functions X, Y, and Z. Incorrect

Influence relationships in ArchiMate do not represent whole-part structures.

Influence is a motivation relationship, meaning it represents an impact or effect, not a structural dependency.

D. The financial processing function is assigned the three sub-functions X, Y, and Z. Incorrect

Assignment relationships are used to indicate that a behavior element (e.g., function, process) is performed by an active structure element (e.g., role, actor, component).

This diagram does not depict an assignment relationship; instead, it shows a structural composition.

Final Answer: A. The financial processing function is composed of three sub-functions X, Y, and Z.


ArchiMate 3.2 Specification: Sections 6.4.2 (Composition), 6.4.1 (Aggregation), and 6.5 (Influence & Assignment).

by Lavonda at Nov 23, 2025, 09:25 PM

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Elina
9 hours ago
I think it's option A. It shows composition.
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Cherelle
6 days ago
I’m surprised no one picked D, it seems like a strong option.
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Delila
11 days ago
Wait, are we sure it’s not D? That sounds plausible too!
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Denna
16 days ago
C is definitely a possibility, but not the best fit.
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Margarett
21 days ago
Haha, this diagram looks like something straight out of a finance textbook. I bet the answer is hidden in all the jargon.
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Katie
26 days ago
I'm not convinced by any of the options. This question is way too vague and needs more context.
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Kattie
1 month ago
Option B seems to make the most sense to me. The financial processing function is clearly aggregating the three sub-functions.
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Brianne
1 month ago
D seems off to me; I don't think it’s about assignment. I lean towards A or C, but I wish I had more clarity on the connections shown.
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Karl
1 month ago
I remember a similar question where we had to identify relationships. I feel like B could be right since it mentions aggregation, but I need to double-check.
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Vernell
2 months ago
Alright, I've got a strategy. I'll eliminate the options that don't seem to match the diagram, then choose the one that best fits what I'm seeing.
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Basilia
2 months ago
I'm a bit unsure here. The wording of the options is tripping me up. I'll need to re-read the question and the diagram a few times to make sure I understand it correctly.
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Altha
2 months ago
I'm feeling pretty confident about this one. The diagram clearly shows that the financial processing function is influenced by the three sub-functions, so I'll go with option C.
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Leota
2 months ago
I think the diagram shows how X, Y, and Z are part of the financial processing, so maybe A is correct? But I'm not entirely sure.
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My
2 months ago
A looks right to me, they seem like sub-functions.
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Kanisha
2 months ago
The diagram looks like a complex financial system, but I'm not sure which option is the correct description.
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Lindsey
3 months ago
I think B makes more sense, it’s about aggregation.
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Ceola
3 months ago
I'm really uncertain about this one. C sounds plausible because it talks about influence, but I can't recall if that's what the diagram indicates.
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Talia
3 months ago
Okay, let me think this through. The question is asking about the relationship between the financial processing function and the sub-functions X, Y, and Z. I'll need to consider each option carefully.
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Veronika
3 months ago
Hmm, this diagram looks a bit confusing. I'll need to carefully analyze the connections to determine the correct description.
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