Multiple Choice
An entity-relationship diagram (E-R) is useful because it shows the various entities being modeled and the important relationships among them.Anything about which the organization wants to collect and store information is called
A) a data model.
B) an entity.
C) a schema.
D) a tuple.
Correct Answer:
Verified
Correct Answer:
Verified
Q57: Define cardinality.
Q70: An E-R diagram represents entities as _
Q71: Which of the following graphical symbols represents
Q72: There are five basic stages in the
Q73: Concerning the development of an REA model,which
Q75: Which of the following graphical symbols represents
Q76: Which of the following is not one
Q78: Developing an REA diagram for a specific
Q79: An E-R diagram<br>A)only depicts the contents of
Q80: List the five stages in the database