Exam 4: Data Modeling and the Entity-Relationship Model

What are "business rules" and what is their role in database design?

Which of the following activities is not performed during the implementation phase of developing a database system?

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

Distinguish between entity identifiers and keys.

One type of strong entity is the ID-dependent entity.

In crow's foot style E-R diagrams,a circle across the relationship line near an entity indicates:

A use case can be used to perform which of the following tasks?

Distinguish between a data model and a database design.

In crow's foot E-R notation,the hash mark indicates both a minimum cardinality of one and a maximum cardinality of one.

An entity that must logically depend on another entity is called a(n)________ entity.

Which of the following would not be contained in a use case?

Identifiers of an entity that are composed of two or more attributes are called ________ identifiers.

Describe the use of Microsoft Access as a prototyping tool.

Microsoft Access 2013 database files can be easily ________ to create multiple copies of a database.

Given only the following excerpt of an E-R model: If one instance of ENTITY B must be related to one and only one instance of ENTITY A,and one instance of ENTITY A may be related to many instances of ENTITY B,which of the following should be written on the end of the relationship line next to ENTITY B in the figure above?

An entity identifier can be either unique or nonunique.