Modern Database Management - Chapter 1

The period that can be considered a "proof of concept" time was the:

1960s.

E. F. Codd developed the relational model in the:

1970s.

Organizations that utilize the file processing approach spend as much as ________ of their IS development budget on maintenance.

80 percent

Which of the following is an integrated decision support database with content derived from various operational databases?

Data warehouse

________ concentrate on determining the requirements for the database component of an information system.

Database analysts

Which of the following is software used to create, maintain, and provide controlled access to databases?

Database management system (DBMS)

Which of the following is NOT a cost and/or risk of the database approach?

Improved responsiveness

The three-schema approach includes which of the following schemas?

Internal

Which organizational function should set database standards?

None of the above

The need for consensus on data definitions is an example of which type of risk in the database environment?

Organizational conflict

An iterative methodology that rapidly repeats the analysis, design, and implementation phases of the SDLC is called:

RAD.

Which of the following is NOT an advantage of database systems?

Redundant data

________ are established between entities in a well-structured database so that the desired information can be retrieved.

Relationships

________ is a tool even non-programmers can use to access information from a database.

Structured query language

The traditional methodology used to develop, maintain and replace information systems is called the:

Systems Development Life Cycle.

________ analyze the business situation and identify the need for information and information services to meet the problems or opportunities of the business.

Systems analysts

Which of the following is NOT an objective that drove the development and evolution of database technology?

The desire to require programmers to write all file handling functionality

Which of the following will interfere with access to operational databases?

Unstructured and unpredictable use of data

A data warehouse derives its data from:

Various operational data sources.

Which of the following types of data can be stored in a database?

Voice, Letters, Numbers

A user view is:

a logical description of some portion of the database.

Databases may be more expensive to maintain than files because of:

all of the above.

The SDLC phase in which every data attribute is defined, every category of data is listed and every business relationship between data entities is defined is called the ________ phase.

analysis

The SDLC phase in which the detailed conceptual data model is created is the ________ phase.

analysis

In a file processing environment, descriptions for data and the logic for accessing the data are built into:

application programs.

CASE is a class of tools that:

automates the design of databases and application programs.

A rule that CANNOT be violated by database users is called a:

constraint.

A graphical system used to capture the nature and relationships among data is called a(n):

data model.

One application of data warehouses is:

decision support.

Organizing the database in computer disk storage is done in the ________ phase.

design

Database development begins with ________, which establishes the range and general contents of organizational databases.

enterprise data modeling

A person, place, an object , an event or concept about which the organization wishes to maintain data is called a(n):

entity.

The most common source of database failures in organizations is:

failure to implement a strong database administration function.

Program-data dependence is caused by:

file descriptors being stored in each application.

The SDLC phase in which database processing programs are created is the ________ phase.

implementation

Data processed in a way that increases a user's knowledge is:

information.

Older systems that often contain data of poor quality are called ________ systems.

legacy

One disadvantage of file processing systems is:

limited data sharing.

A database is an organized collection of ________ related data.

logically

Data that describe the properties of other data are:

none of the above.

All of the following are properties of metadata EXCEPT:

processing logic.

One of the most popular RAD methods is:

prototyping.

All of the following are primary purposes of a database management system (DBMS) EXCEPT:

providing an integrated development environment.

Relational databases establish the relationships between entities by means of common fields included in a file called a(n):

relation.

A centralized knowledge base of all data definitions, data relationships, screen and report formats, and other system components is called a(n):

repository.

A knowledge base of information on facts about an enterprise is called a(n):

repository.

With the database approach, data descriptions are stored in a central location known as a(n):

repository.

A workgroup database is stored on a central device called a(n):

server.

Because applications are often developed independently in file processing systems:

unplanned duplicate data files are the rule rather than the exception.

Languages, menus, and other facilities by which users interact with the database are collectively called a(n):

user interface.

A(n) ________ is often developed by identifying a form or report that a user needs on a regular basis.

user view

A relatively small team of people who collaborate on the same project is called a(n):

workgroup.