Question 1

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.

Accepted Answer

Low-end alternatives provide all the required functionality users demand with a system that is minimally different from the current system, focusing on cost-effectiveness and essential features.

Question 2

Match each of the following alternatives with its corresponding description.(Answers may occur more than once.)
-Functionality, not cost, is the primary focus of these alternatives.

Accepted Answer

High-end alternatives prioritize functionality and performance over cost, making them the best choice for those who require top-of-the-line features and are willing to pay a premium.

Answer: B
 Midrange alternatives strike a balance between functionality and cost, making them the best choice for those who want a decent level of performance without breaking the bank.

Answer: C
 Low-end alternatives prioritize affordability over functionality, making them the best choice for those who have a tight budget and are willing to sacrifice some features and performance.

Question 3

Briefly identify the four entity-relationship diagrams that are produced and analyzed during conceptual data modeling.

Accepted Answer

The answer of Briefly identify the four entity-relationship diagrams that...

Question 4

For each of the following statements, answer "a" if it is a true statement, or answer "b" if the statement is false.
-A singular noun is used to name an entity type.

Accepted Answer

The answer of For each of the following statements, answer...

Question 5

For each of the examples listed below, indicate if it is a relationship, an entity, or an attribute.(Answers may occur more than once.)
-invoice item

Accepted Answer

The answer of For each of the examples listed below,...

Question 6

Discuss unary, binary, and ternary relationships.

Accepted Answer

The answer of Discuss unary, binary, and ternary relationships....

Question 7

For each of the examples listed below, indicate if it is a relationship, an entity, or an attribute.(Answers may occur more than once.)
-invoice

Accepted Answer

An invoice is an entity, as it represents a document or record of a transaction between two parties. It is not a relationship, as that would describe the connection or association between two entities or attributes. It is also not an attribute, as attributes are characteristics or properties of entities.

Question 8

For each of the examples listed below, indicate if it is a relationship, an entity, or an attribute.(Answers may occur more than once.)
-item description

Accepted Answer

"item description" describes a characteristic of an entity (e.g. a product), making it an attribute.

Question 9

For each of the following statements, answer "a" if it is a true statement, or answer "b" if the statement is false.
-Many instances of an entity type may be represented by data stored in the database.

Accepted Answer

The answer of For each of the following statements, answer...

Question 10

Briefly discuss generating alternative design strategies.

Accepted Answer

The answer of Briefly discuss generating alternative design strategies....

Question 11

Define the following key data modeling terms: entity, attribute, relationship, degree, cardinality, and associative entity.

Accepted Answer

The answer of Define the following key data modeling terms:...

Question 12

For each of the examples listed below, indicate if it is a relationship, an entity, or an attribute.(Answers may occur more than once.)
-received on

Accepted Answer

"received on" suggests a relationship between two entities, such as a customer receiving an order on a particular date or a company receiving a payment on a certain day. It is not an attribute that can describe a single entity, nor is it an entity on its own.

Question 13

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

Accepted Answer

Midrange alternatives represent compromise solutions that offer a balance between performance and cost.

Question 14

For each of the following statements, answer "a" if it is a true statement, or answer "b" if the statement is false.
-An entity instance is a single occurrence of an entity type.

Accepted Answer

An entity instance is a unique occurrence of an entity type. It is also called an entity occurrence, entity record or row.

Question 15

Contrast data modeling to process modeling and logic modeling.

Accepted Answer

The answer of Contrast data modeling to process modeling and...

Question 16

Match each of the following alternatives with its corresponding description.(Answers may occur more than once.)
-These alternatives are the most conservative in terms of the effort, cost, and technology involved in developing a new system.

Accepted Answer

Low-end alternatives are typically the most conservative in terms of effort, cost, and technology involved in developing a new system.

Question 17

What are multivalued attributes and repeating groups? Provide an example of each.

Accepted Answer

The answer of What are multivalued attributes and repeating groups?...

Question 18

For each of the following statements, answer "a" if it is a true statement, or answer "b" if the statement is false.
-Upper- and lowercase letters are used in naming an entity type.

Accepted Answer

The answer of For each of the following statements, answer...

Question 19

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.

Accepted Answer

High-end alternatives typically offer more features and functions than what is necessary to solve the problem in question, and are designed for users who may have more demanding needs or require sophisticated tools.

Answer: B
 Midrange alternatives are designed to offer a balance between cost and functionality, and are intended for users who would benefit from additional features beyond the basic requirements.

Answer: C
 Low-end alternatives are designed to meet the basic requirements of the problem in question, and typically do not include additional features or functionality beyond what is necessary to solve the problem.

Question 20

For each of the following statements, answer "a" if it is a true statement, or answer "b" if the statement is false.
-A diamond is used to represent an entity.

Accepted Answer

The answer of For each of the following statements, answer...

Quiz 7: Structuring System Requirements: Conceptual Data Modeling

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.

Match each of the following alternatives with its corresponding description.(Answers may occur more than once.) -Functionality, not cost, is the primary focus of these alternatives.

Briefly identify the four entity-relationship diagrams that are produced and analyzed during conceptual data modeling.

For each of the following statements, answer "a" if it is a true statement, or answer "b" if the statement is false. -A singular noun is used to name an entity type.

For each of the examples listed below, indicate if it is a relationship, an entity, or an attribute.(Answers may occur more than once.) -invoice item

Discuss unary, binary, and ternary relationships.

For each of the examples listed below, indicate if it is a relationship, an entity, or an attribute.(Answers may occur more than once.) -invoice

For each of the examples listed below, indicate if it is a relationship, an entity, or an attribute.(Answers may occur more than once.) -item description

For each of the following statements, answer "a" if it is a true statement, or answer "b" if the statement is false. -Many instances of an entity type may be represented by data stored in the database.

Briefly discuss generating alternative design strategies.

Define the following key data modeling terms: entity, attribute, relationship, degree, cardinality, and associative entity.

For each of the examples listed below, indicate if it is a relationship, an entity, or an attribute.(Answers may occur more than once.) -received on

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

For each of the following statements, answer "a" if it is a true statement, or answer "b" if the statement is false. -An entity instance is a single occurrence of an entity type.

Contrast data modeling to process modeling and logic modeling.

Match each of the following alternatives with its corresponding description.(Answers may occur more than once.) -These alternatives are the most conservative in terms of the effort, cost, and technology involved in developing a new system.

What are multivalued attributes and repeating groups? Provide an example of each.

For each of the following statements, answer "a" if it is a true statement, or answer "b" if the statement is false. -Upper- and lowercase letters are used in naming an entity type.

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.

For each of the following statements, answer "a" if it is a true statement, or answer "b" if the statement is false. -A diamond is used to represent an entity.