Question 1

In theory, if there are four sets of requirements, three implementation environments, and four sources of application software, then there would be thirty-six possible design strategies.

Accepted Answer

The number of possible design strategies would be the product of all the options, which is 4 x 3 x 4 = 48, not 36.

Question 2

During alternative generation and selection, choices on the implementation environment may place technical limitations on the subsequent design phase activities.

Accepted Answer

Implementation environment can have a significant impact on the design phase activities and can limit the available options for implementation. Therefore, the statement is true.

Question 3

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

Accepted Answer

Midrange alternatives are typically a balance between low-end and high-end options, not necessarily the most conservative in terms of effort, cost, and technology.

Question 4

Cardinality is the number of instances of entity B that can (or must) be associated with each instance of entity A.

Accepted Answer

This statement correctly defines the concept of cardinality in entity-relationship modeling.

Question 5

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

Accepted Answer

The answer of A plural relationship is a relationship that...

Question 6

Cost is the primary focus of high-end alternatives.

Accepted Answer

High-end alternatives typically focus on features or performance rather than cost. Cost is often less of a concern for those willing to invest in high-end products.

Question 7

In theory, if there are six sets of requirements, four implementation environments, and five sources of application software, then there would be one hundred twenty possible design strategies.

Accepted Answer

The total number of possible design strategies would be the product of the number of sets of requirements, implementation environments, and sources of application software: 6 x 4 x 5 = 120. Therefore, the statement is true.

Question 8

The minimum cardinality of a relationship is the minimum number of instances of entity B that may be associated with each instance of entity A.

Accepted Answer

The statement accurately describes the concept of minimum cardinality in a relationship between entities.

Question 9

During alternative generation and selection, management may decide to end the project for a variety of reasons, including the fact that the needs of the organization have changed.

Accepted Answer

Yes, management may decide to end the project for various reasons, including changes in organizational needs.

Question 10

During the alternative generation and selection step of the analysis phase, you would divide the requirements into different sets of capabilities ranging from the bare minimum that users would accept to the most elaborate and advanced system the company could afford to develop.

Accepted Answer

During the alternative generation and selection step of the analysis phase, requirements are typically divided into different sets of capabilities, ranging from minimal viable product (MVP) to the most advanced system. This helps to identify the different options available and enables the project team to make informed decisions about which features to include in the final solution.

Question 11

Conceptual data modeling for an Internet-based electronic commerce application differs significantly from the process followed when analyzing the data needs for other types of applications.

Accepted Answer

The answer of Conceptual data modeling for an Internet-based electronic...

Question 12

During the designing the human interface step of the design phase, you would enumerate different potential implementation environments that could be used to deliver the different sets of capabilities.

Accepted Answer

The answer of During the designing the human interface step...

Question 13

A relationship must be turned into an associative entity when the associative entity has other relationships with entities besides the relationship that caused its creation.

Accepted Answer

If the associative entity has other relationships with entities besides the relationship that caused its creation, it should be turned into an associative entity to properly represent all the relationships.

Question 14

A good number of alternatives to generate is five.

Accepted Answer

The answer of A good number of alternatives to generate...

Question 15

High-end alternatives not only solve the problem in question but include many extra features as well.

Accepted Answer

High-end alternatives often offer additional features and benefits that are not present in lower-end options, making them a more comprehensive and valuable solution.

Question 16

A system design strategy represents a particular approach to developing a system.

Accepted Answer

A system design strategy is a specific approach or methodology used in the development of a system. Examples of strategies include top-down, bottom-up, iterative, agile, and spiral. Each strategy has its own set of steps and activities to follow in order to create a successful system.

Question 17

Ideally, each data store on a primitive data-flow diagram will be an individual entity.

Accepted Answer

In a primitive data-flow diagram, each data store represents a distinct entity where data is stored or retrieved. Therefore, ideally, each data store on a primitive data-flow diagram will be a separate entity.

Question 18

A ternary relationship is the equivalent of three binary relationships.

Accepted Answer

The answer of A ternary relationship is the equivalent of...

Question 19

During the alternative generation and selection step of the analysis phase, you would propose different ways to source or acquire the various sets of capabilities for the different implementation environments.

Accepted Answer

During the alternative generation and selection step of the analysis phase, different ways to source or acquire the various sets of capabilities for the different implementation environments are proposed.

Question 20

When performing requirements structuring steps, you should match all entities with the data stores appearing on a data-flow diagram.

Accepted Answer

When performing requirements structuring steps, matching all entities with the data stores appearing on a data-flow diagram is a good practice to ensure that all necessary components of the system are considered and included in the requirements specification.

Quiz 7: Structuring System Requirements: Conceptual Data Modeling