Exam 4: Data Modeling and the Entity-Relationship Model

A(n)________ is a working demonstration of selected portions of the future system.

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

Microsoft Access 2013 uses ________ form and report editors.

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

Microsoft Access can be used to prototype databases for which of the following DBMS products?

There is usually only one instance of an entity in an entity class.

Recursive relationships occur when an entity has a relationship with ________.

Explain minimum cardinality.

The PRODUCT entity instance is the collection of all PRODUCT entity classes.

An entity class is described by the structure of the entities in that class.

How is maximum cardinality expressed in crow's foot E-R diagrams?

Microsoft Access 2013 wizards allow easy mock-ups of forms and reports for prototyping.

In crow's foot style E-R diagrams,a single entity together with a related set of entities that each contain specific sets of attributes related to the single entity represent:

What is a "use case" and how is it used?

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

Which of the following is not a source for user requirements during the requirements analysis stage of developing a database system?

________ are descriptions of the ways users will employ the features and functions of the new information system.

Which of the following is not a basic element of the E-R Model?

Unified Modeling Language (UML)has quickly replaced the E-R Model as the most popular technique for creating data models.

Which of the following is true about identifiers of entities?