Object Modeling Techniques Questions

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3.

The relationship shown in a data model must be classified to show their

A

cardinality

B

directionality

C

modality

D

probability

E

both a and c

Correct Answer: E

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4.

A data flow diagram

A

depicts relationship between data objects

B

depict function that transform the data flow

C

indicates how data transformed by the system

D

indicates system reactions to external events

E

both b and c

Correct Answer: E

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5.

Which of the following is a structural model that demonstrates the other systems in the environment of the system being developed?

A

system context model

B

interaction model

C

environmental model

D

both system context and interaction

Correct Answer: A

The context model of a system may be represented using associations. Associations simply show that there are some relationships between the entities involved in the association. advertisement

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6.

Which model describes the static structure of the system using object classes and their relationships ?

A

Sequence model

B

Subsystem model

C

Dynamic model

D

Structural model

Correct Answer: D

Important relationships that may be documented at this stage are generalization (inheritance) relationships, uses/used-by relationships, and composition relationships.

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7.

Which model shows the flow of object interactions?

A

Sequence model

B

Subsystem model

C

Dynamic model

D

Both Sequence and Dynamic model

Correct Answer: A

Sequence model are represented using a UML sequence or a collaboration diagram and are dynamic models.

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8.

The Object Modelling Technique (OMT) uses the following three kinds of model to describe a system 

A

Class Model, Object Model and Analysis Model

B

Object Model, Dynamic Model, and Functional Model

C

Class Model, Dynamic Model and Functional Model

D

Object Model, Analysis Model and Dynamic Model

Correct Answer: C

Object Model, Dynamic Model, and Functional Model

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9.

Which of the following technique detects transposition errors?

A

check digit   

B

automatic correction       

C

existence test

D

duplicate processing       

E

limit and range test.

Correct Answer: A

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10.

The structure chart derived by studying the flow through the system supports the activity of

A

File design    

B

Program design      

C

Database design

D

Internal controls design 

E

Output design.

Correct Answer: D

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