omis 452 ch 4 Questions and Answers 100% Solved

omis 452 ch 4 Questions and Answers 100% Solved

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Terms in this set (40)


An entity identifier can be either TRUE
unique or nonunique.

System requirements as FALSE
documented by use cases,
business rules, forms, reports,
and queries are sufficient to
design the database without
using a formal data model.

In crow's foot style E-R both a minimum cardinality of one and a maximum cardinality of
diagrams, a hash mark across the one
relationship line near an entity
indicates ________.
a minimum cardinality of zero
a minimum cardinality of one
a maximum cardinality of one
a maximum cardinality of many
Both a minimum cardinality of
one and a maximum cardinality
of one

, The number of entity classes FALSE
involved in a relationship is the
cardinality of the relationship.

A use case can be used to validate the data model
perform which of the following
tasks?
Transform the data model into
the database design
Validate the data model
Fill the database with data
Implement business rules
Develop applications

An ID-dependent entity is ________. both a special type of weak entity and an entity in which the
a special type of weak entity identifier of the entity includes the identifier of another entity
an entity in which the identifier
of the entity includes the
identifier of another entity
a strong entity
an entity with a maximum
cardinality of one
Both a special type of weak
entity and an entity in which the
identifier of the entity includes
the identifier of another entity