What is depicted here?

Question

BlackTom AI · Accepted Answer

The prompt presents a question about identifying the type of relationship depicted. 
Option 1: 'Unique relationship.' This suggests a relationship that is singular or one-of-a-kind, but the standard terminology in data modeling distinguishes between unary, binary, and other n-ary relationships rather than calling something 'unique.' Therefore this option is not aligned with the common classification terms.
Option 2: 'Unary relationship.' This is the accepted term for a relationship where a single entity type is related to itself, such as a person who is a manager of another person within the same set. If the depicted diagram shows a single entity connected back to itself without involving a different entity type, then 'unary' is the correct descriptor.
Option 3: 'Binary relationship.' This term describes a relationship between two distinct entity types or two instances of the same type but connected across two roles, often illustrated with two boxes and a line between them or two entity sets. If the image shows only one entity type with a self-connection, this would be incorrect for a unary case.
In summary, the key distinction hinges on whether the relationship loop involves one entity type relating to itself (unary) versus two different entity types or instances (binary). Given the provided correct answer, the depicted diagram corresponds to a unary relationship, where an entity relates to itself in a single-entity context.

BUSI_V 335 972 2025SS BUSI 335 FINAL Practice Exam (US Electricity)

What is depicted here?

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