How are attributes documented in an entity-relationship diagram?

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BlackTom AI · Accepted Answer

When analyzing how attributes are represented in an entity-relationship diagram, think about the visual placement of the entity’s characteristics. 
Option: 'Within an entity rectangle.' This aligns with common ER diagram conventions where the entity’s attributes (in certain notations) are displayed inside the rectangle that represents the entity, or are directly associated with it in a clearly grouped area. 
If you were to consider alternative representations, such as showing attributes as separate ovals connected to the entity (as in Chen notation), those would place attributes outside the rectangle rather than inside it. 
Another possible variation is listing all attributes in a separate attribute list or in a separate diagram area; that would be a different stylistic choice and is not universally standard across all ER diagram conventions. 
Given that the provided option states they are documented 'Within an entity rectangle' and this matches one of the accepted presentation styles for attributes in ER diagrams, this option correctly describes a valid approach.
If there were additional options, they would need to specify other notations (e.g., attributes as ovals in Chen notation or in an attached attribute list) and could be evaluated against the standard notation rules. In the absence of other choices, the statement is consistent with a legitimate way to document attributes in an ER diagram.

CSE 3241 SU2025 (7028) Week 7 Quiz

How are attributes documented in an entity-relationship diagram?

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