Deck 15: E-R Diagrams and the Idef1x Standard

Question 1

A categorization relationship is an IS-A relationship.

Answer 1

True

Question 2

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

Answer 2

False

Question 3

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

Answer 3

True

Question 4

IDEF1X categories are put into a cluster.

Question 5

IDEFIX domains are numbered sets of values.

Question 6

IDEF1X category clusters may be either complete or incomplete.

Question 7

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.

Question 8

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

Question 9

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.

Question 10

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

Question 11

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 12

IDEF1X category clusters are mutually exclusive.

Question 13

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

Question 14

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

Question 15

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

Question 16

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

Question 17

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

Question 18

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 19

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

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

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 22

What symbols are used in IDEF1X diagrams to represent cardinalities?

Question 23

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

Question 24

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 25

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

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

Question 26

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 27

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 28

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

Question 29

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

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

Question 30

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

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

Question 31

In IDEF1X,a domain is a:

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

Question 32

What is IDEF1X?

Question 33

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 34

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 35

What are IDEF1X domains?