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Exam 15: E-R Diagrams and the Idef1x Standard

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Question 1

Multiple Choice

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In IDEF1X,a category cluster includes BLACK and WHITE,which are the only possible categories.This is an IDEF1X:

A) complete category cluster.
B) incomplete category cluster.
C) inherited category cluster.
D) inconclusive category cluster.
E) None of the above.

F) C) and D)
G) A) and D)

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A

Question 2

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The IDEF1X default cardinality of a nonidentifying connection relationship is indicated by a dashed line with a filled-in circle by the child and no other notation.

A) True
B) False

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Question 3

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What are the IDEF1X equivalents of 1:1,1:N and N:M relationships?

What line symbols are used in IDEF1X diagrams to represent relationships?

The IDEF1X excludes the concept of domains found in the extended E-R model.

IDEF1X category clusters may be either complete or incomplete.

IDEF1X categories are put into a cluster.

Extended E-R model N:M relationships are called nonidentifying connection relationships in IDEF1X.

What symbols are used in IDEF1X diagrams to represent cardinalities?

Extended E-R model 1:1 relationships are called nonidentifying connection relationships in IDEF1X.

In IDEF1X,a category cluster includes BLACK and WHITE,but does not show GREY,which is also a possible category.This is an IDEF1X:

A categorization relationship is an IS-A relationship.

In IDEF1X,a domain is a:

In IDEF1X,extended E-R model subtype entities are grouped into:

Extended E-R model weak,but non-ID-dependent relationships are called nonidentifying connection relationships in IDEF1X.

In IDEF1X,extended E-R model N:M relationships are called:

What is IDEF1X?

The IDEF1X equivalence of the extended E-R model subtype is the category entity,and category entities are placed in categorization clusters.

The IDEF1X default cardinality of a nonidentifying connection relationship is one-to-one,with a mandatory parent and an optional child.

In IDEF1X,the named set of values that an attribute can have is called a: