in ERDplus a label:

Question

in ERDplus a label:

BlackTom AI · Accepted Answer

When tackling the question about ERDplus, it helps to recall what a label in an ER diagram represents and where it appears.
Option 1: 'is optional.' This aligns with how labels on relationships or entities are not mandatory in all cases; a label can be omitted if not needed to convey meaning, so stating that a label is optional is plausible.
Option 2: 'must not contain cardinality information.' In ER diagrams, labels are typically descriptive text and may accompany relationships, but cardinality information is usually expressed separately through notation (e.g., 1:N, min-max) rather than embedded in a label. However, this option overclaims that labels must never convey any cardinality, which is not a universal rule and could be misleading; there are design choices where labeling could touch on related constraints, so saying it must not contain cardinality information is overly strict.
Option 3: 'is required.' Since labels are not strictly required in all diagrams and many clean diagrams omit them when unnecessary, this statement is generally false.
Option 4: 'should not refer to specific entities.' Labels can describe the relationship or context between specific entities and may indeed reference the entities involved, so claiming they should not refer to specific entities is not correct.
In summary, the most defensible statement among these is that a label is optional, while the other options impose incorrect or overly strict constraints on what a label may or may not contain.

BUSI_V 335 101 102 2025W1 Module 10 Quiz - Design Notation and Software

in ERDplus a label:

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BUSI_V 335 101 102 2025W1 Module 10 Quiz - Design Notation and Software

in ERDplus a label:

View Explanation

Log in for full answers

Similar Questions

In an ER diagram, the weak entity is typically depicted with a _________ ___________, and the relationship between the weak entity and the strong entity is shown with a __________ ___________.

In the following diagram, which of the answers below is true?

Identify the minimum cardinality of any E-R Diagram relationship:

In an ER-Diagram, relationship cardinality is represented as a:

A pair of perpendicular (crossing) lines across a relationship line, next to an entity, indicates that:

Observe the ER Diagram for the ABC Retailer: Which of the following is true according to the ABC Retailer ER diagram?

Question at position 49 In an ERD, cardinality specifiesThe range of allowable values for an attributeThe unique identifier for an entityThe minimum and maximum number of instances of one entity that can be associated with instances of another entityThe number of attributes within an entity

Question at position 16 What does a "relationship" in an ERD represent?A specific attribute within an entityThe primary attribute of an entityAn association between two or more entitiesThe unique identifier of an entity

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In an ER diagram, the weak entity is typically depicted with a ___ _, and the relationship between the weak entity and the strong entity is shown with a _____.