4. Give two examples in which the closed-world assumption (which is the assumption that a statement is false unless it can be explicitly derived from the information available) is commonly used.
4. Give two examples in which the closed-world assumption (which is the assumption that a statement is false unless it can be explicitly derived from the information available) is commonly used.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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
Transcribed Image Text:4. Give two examples in which the closed-world assumption (which is the assumption that a
statement is false unless it can be explicitly derived from the information available) is
commonly used.

Transcribed Image Text:3. Which of the following activities do you expect to be performance oriented and which are
simulation oriented?
a. The design of an automated shuttle system (often used at airports between terminals).
b. The design of a model predicting the path of a hurricane.
c. The design of a Web search database used to derive and maintain indices for
documents stored on the World Wide Web.
d.
The design of a model of a nation's economy for testing theories.
e. The design of program for monitoring a patient's vital signs.
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