Exam 7: Structuring System Requirements: Conceptual Data Modeling

The alternative that goes beyond simply solving the problem in question and focuses instead on systems that contain many extra features users may desire is referred to as a:

During systems development, essential features to consider include data, output, and analyses.

For each of the following statements, answer "a" if it is a true statement or answer "b" if the statement is false. -To illustrate a multivalued attribute, separate the repeating data into another entity, then using a relationship, link the weak entity to its associated regular entity.

A plural relationship is a relationship that the data modeler chooses to model as entity type.

A good number of alternatives to generate is five.

A collection of entities that share common properties or characteristics best defines:

Which of the following is a true statement regarding midrange alternatives?

Match each of the following alternatives with its corresponding description.(Answers may occur more than once.) -These alternatives represent compromise solutions.

Social security number, last name, and first name are examples of entity types.

The names of data stores on primitive-level data flow diagrams often correspond to the names of data entities in entity-relationship (E-R) diagrams.

A particular approach to developing an information system best describes:

An order number is a good example of a candidate key.

Match each of the following terms with its corresponding definition. -A person, place, object, event, or concept in the user environment about which the organization wishes to maintain data

The purpose of the conceptual data model is to show as many rules about the meaning and interrelationships among data as possible.

Match each of the following alternatives with its corresponding description.(Answers may occur more than once.) -These alternatives provide all the required functionality users demand with a system that is minimally different from the current system.

A detailed, logical, and graphical representation of the entities, associations, and data elements for an organization or business area best describes a(n):

On an entity-relationship diagram, the entity's identifier is:

Midrange alternatives are the most conservative in terms of the effort, cost, and technology involved in developing a new system.

If each employee can have more than one skill, then skill is referred to as a:

Match each of the following alternatives with its corresponding description.(Answers may occur more than once.) -These alternatives go beyond simply solving the problem in question and focus instead on systems that contain many extra features users may desire.