Deck 18: E-R Diagrams and the Idef1x Standard

Question 1

In IDEF1X,extended E-R model 1:N relationships are called:

A)nonidentifying connection relationships.
B)identifying connection relationships.
C)nonspecific relationships.
D)category clusters.
E)There is no equivalent IDEF1X term.

Answer 1

A

Question 2

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

A)generic entity.
B)category entity.
C)nonspecific entity.
D)category clusters.
E)There is no equivalent IDEF1X term.

Answer 2

B

Question 3

In IDEF1X,extended E-R model 1:1 relationships are called:

A)nonidentifying connection relationships.
B)identifying connection relationships.
C)nonspecific relationships.
D)category clusters.
E)There is no equivalent IDEF1X term.

Answer 3

A

Question 4

IDEF1X nonspecific relationships correspond to N:M relationships in the extended E-R model.

Question 5

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

Question 6

In IDEF1X,a domain is a:

A)domain.
B)base domain.
C)type domain.
D)B or C
E)A,B or C

Question 7

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

A)nonidentifying connection relationships.
B)identifying connection relationships.
C)nonspecific relationships.
D)category clusters.
E)There is no equivalent IDEF1X term.

Question 8

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

Question 9

In IDEF1X,extended E-R model ID-dependent relationships are called:

A)nonidentifying connection relationships.
B)identifying connection relationships.
C)nonspecific relationships.
D)category clusters.
E)There is no equivalent IDEF1X term.

Question 10

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

A)domain.
B)base domain.
C)type domain.
D)domain cluster.
E)There is no such IDEF1X term.

Question 11

IDEF1X entities are the same as the entities in the extended E-R model.

Question 12

In IDEF1X,extended E-R model weak,but non-ID-dependent relationships are called:

A)nonidentifying connection relationships.
B)identifying connection relationships.
C)nonspecific relationships.
D)category clusters.
E)There is no equivalent IDEF1X term.

Question 13

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

A)generic entity.
B)category entity.
C)nonspecific entity.
D)category clusters.
E)There is no equivalent IDEF1X term.

Question 14

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

Question 15

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

Question 16

IDEF1X identifying connection relationships correspond to ID-dependent relationships in the extended E-R model.

Question 17

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

Question 18

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

Question 19

In IDEF1X,extended E-R model supertype entities are called:

A)generic entity.
B)category entity.
C)nonspecific entity.
D)category clusters.
E)There is no equivalent IDEF1X term.

Question 20

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.

Question 21

IDEF1X categories are put into a clutter.

Question 22

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

Question 23

In IDEF1X,a base domain can have a:

A)data type.
B)value.
C)range definition.
D)B or C
E)A,B or C

Question 24

IDEFIX domains are numbered sets of values.

Question 25

What is IDEF1X?

Question 26

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.

Question 27

In IDEF1X,a type domain allows:

A)different data types.
B)different values.
C)greater specificity of values.
D)B or C
E)A,B or C

Question 28

What symbols are used in IDEF1X diagrams to represent cardinalities?

Question 29

What are IDEF1X domains?

Question 30

A categorization relationship is a IS-A relationship.

Question 31

IDEF1X category clusters are mutually exclusive.

Question 32

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

Question 33

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

Question 34

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

Question 35

IDEF1X category clusters may be either complete or incomplete.