Functional decomposition

1

Question: Functional decomposition is a repetitive process of breaking the description or perspective of a system down into finer and finer detail.

A         True

B         False

2

 Question: The way a user can move from one display to another best describes

A         Dialogue sequence

B         Transition plan

C         Menu-driven interface

D         Screen sequence

E          Computer interface

3

Question: Which of the following focuses on how information is provided to and captured from users?

A         Structure chart

B         Flow chart

C         Entity-relationship diagram

D         PERT diagram

E         Interface and dialogue design

4

Question: The number of entity types that participate in a relationship refers to

A         Cardinality

B         Association

C         Count

D         Degree

E          Normalization

5

Question: The primary deliverable from the conceptual data-modeling step within the analysis phase is

A         A state-transition diagram

B         An entity-relationship diagram

C         A context data flow diagram

D         A decision table

E          Structured English

6

Question: Desired features are those that users could live without but that are used to select between design strategies that are of almost equal value in terms of essential features.

A         True

B         False

7

Question: One of the primary purposes of a DFD is to represent time, giving a good indication of whether data flows occur constantly in real time, once a day, or once a year.

A         True

B         False

8

Question: The calculation of an employee's salary would be represented on a data-flow diagram as a(n)  

A         Data flow

B         Source

C         Data store

D         Process

E          Action stub

9

Question: During systems design, a conceptual data model with attributes is prepared.

A         True

B         False

10

Question: An entity instance is a single occurrence of an entity type.

A         True

B         False

11

Question: When designing textual output, you should use single spacing wherever possible.

A         True

B         False

12

Question: During systems implementation and operation

A         A conceptual data model (E-R with attributes) is prepared

B         A logical model (relational) is prepared

C         Physical files and database designs are prepared

D         An enterprise-wide data model is prepared

E         Database and file definitions are prepared

13

Question: The top-down approach to data modeling derives a data model from an intimate understanding of the nature of the business.

A         True

B         False

14

Question: Which of the following is a guideline for displaying text?

A         Use double spacing if space permits

B         Do not hyphenate words between lines

C         Left-justify text and leave a ragged right margin

D         Display text in mixed upper- and lowercase and use conventional punctuation

E         All of the above are guidelines for displaying text

15

Question: Data contained on a customer order form would be represented on a data-flow diagram as a

A         Process

B         Data flow

C         Source

D         Sink

E          Relationship

16

Question: Completeness, consistency, timing, iterative development, and primitive DFDs are guidelines for drawing DFDs.

A         True

B         False

17

Question: Which of the following is a true statement regarding a data store?

A         Data can move directly from one data store to another data store

B         Data stores illustrate relationships among entities

C         A data store has a noun phrase label

D         Data can move from an outside source to a data store

E          A data store shows data in motion

18

Question: Designing usable forms and reports requires your active interaction with users.

A         True

B         False

19 Question: The most common format used for data modeling is

A         State-transition diagramming

B         Entity-relationship diagramming

C         Process modeling

D         Logic modeling

E          A flowchart

20

Question: A data-flow diagram that represents a system's major processes, data flows, and data stores at a high level of detail refers to a

A         Context diagram

B         Level-1 diagram

C         Level-0 diagram

D         Level-00 diagram

E          Logic diagram

21

Question: Each of the following is a guideline for displaying text except

A         Use abbreviations and acronyms instead of full text

B         Do not hyphenate words between lines

C         Left-justify text and leave a ragged right margin

D         Display text in mixed upper- and lowercase and use conventional punctuation

E          Use double spacing if space permits

22

Question: Designing usable forms and reports requires

A         Prototyping

B         Data modeling

C         Active interaction with end users

D         Process modeling

E          Using structured analysis

23

Question: While essential features help screen out possible solutions, desirable features help compare alternative design strategies.

A         True

B         False

24

Question: The names of data stores on primitive-level data flow diagrams often correspond to the names of data entities in entity-relationship (E-R) diagrams.

A         True

B         False

25

Question: A data flow represents data in motion, moving from one place in the system to another.

A         True

B         False