Question 1

Preliminary investigation includes those techniques used by systems analysts to identify or extract system problems and solution requirements from the user community.

Accepted Answer

False

Question 2

System requirements that specify what the information system must do are referred to as functional requirements.

Accepted Answer

Functional requirements describe the specific behaviors or functions of a system, detailing what the system should do.

Question 3

Another name for a system requirement is business requirement.

Accepted Answer

True

Question 4

Failure to correctly identify system requirements can lead to higher maintenance costs over the life of the system..

Accepted Answer

Failure to identify system requirements accurately can result in a system that does not meet user needs, leading to frequent modifications and updates, which increase maintenance costs.

Question 5

System requirements that specify a property or quality the system must have are frequently referred to as functional requirements.

Accepted Answer

Functional requirements describe specific behaviors or functions of a system, while non-functional requirements specify properties or qualities such as performance, usability, and reliability.

Question 6

The purpose of requirements discovery and management is to correctly identify the knowledge, process and communication requirements for the users of the new system.

Accepted Answer

Requirements discovery and management aim to understand and document what users need from a new system, ensuring that the system meets their knowledge, process, and communication needs.

Question 7

Based on Boehm's findings, an erroneous requirement that goes undetected and unfixed until the operations phase may cost 1,000 times more than it would have cost if it were detected and fixed in the requirements phase.

Accepted Answer

Boehm's findings suggest that the cost of fixing defects increases exponentially the later they are detected in the software development lifecycle, with the operations phase being the most expensive.

Question 8

Requirements discovery consists of the following activities: (1) problem discovery and analysis;
(2) requirements discovery; (3) documenting and analyzing requirements; and (4) requirements management.

Accepted Answer

Requirements discovery involves identifying and understanding the needs and constraints of stakeholders, documenting these requirements, analyzing them for feasibility, and managing changes to ensure the final product meets the intended goals.

Question 9

The Ishikawa diagram is often referred to as a cause-and-effect diagram or a fishbone diagram.

Accepted Answer

The Ishikawa diagram, developed by Kaoru Ishikawa, is also known as a cause-and-effect diagram or fishbone diagram because it visually resembles a fish skeleton and is used to identify potential causes of a problem.

Question 10

Fact-finding is the formal process of using research, interviews, questionnaires, sampling and other techniques to collect information about problems, requirements, and preferences.

Accepted Answer

Fact-finding involves gathering information through various methods to understand issues, needs, and preferences.

Question 11

Another name for fact-finding is information gathering.

Accepted Answer

Fact-finding and information gathering both refer to the process of collecting data or evidence to understand a situation or solve a problem.

Question 12

Another name for fact-finding is a non-functional requirement.

Accepted Answer

Fact-finding is a process used to gather information and requirements, while non-functional requirements specify criteria for the operation of a system, such as performance and usability. They are not synonymous.

Question 13

A requirements definition document should consist of the following: (1) functions and services that the system should provide; (2) nonfunctional requirements including the system's features, characteristics, and attributes; (3) constraints that restrict the development of the system or under which the system must operate; and (4) information about other systems the system must operate.

Accepted Answer

A requirements definition document typically includes functional requirements, nonfunctional requirements, constraints, and interactions with other systems to ensure comprehensive understanding and planning for system development.

Question 14

Requirements validation checks the requirements definition document for accuracy, completeness, consistency, and conformance to standards.

Accepted Answer

Requirements validation ensures that the requirements definition document accurately reflects the stakeholders' needs and adheres to standards by checking for accuracy, completeness, consistency, and conformance.

Question 15

Requirements validation checks the systems proposal for the inclusion of data flow diagrams and entity relationship diagrams for all of the requirements.

Accepted Answer

Requirements validation ensures that the requirements accurately reflect the needs and constraints of stakeholders, not just the inclusion of specific diagrams.

Question 16

Requirements management is the process of managing change to the requirements.

Accepted Answer

Requirements management involves tracking and controlling changes to the requirements to ensure that they are implemented correctly and meet stakeholder needs.

Question 17

Sampling is the activity of sampling the requirements from the requirements definition to insure requirements validation.

Accepted Answer

Sampling in the context of requirements engineering typically refers to selecting a subset of data or stakeholders to gather insights, not the activity of validating requirements.

Question 18

Randomization is a sampling technique characterized as having no predetermined pattern or plan for selecting sample data.

Accepted Answer

Randomization involves selecting samples in such a way that each member of the population has an equal chance of being chosen, without any specific pattern or plan.

Question 19

Randomization is a sampling technique that attempts to reduce the variance of the estimates by spreading out the sampling and by avoiding very high or low estimates.

Accepted Answer

Randomization is a sampling technique used to eliminate bias and ensure that each member of a population has an equal chance of being selected, not specifically to reduce variance by spreading out sampling.

Question 20

Stratification is a sampling technique characterized as having no predetermined pattern or plan for selecting sample data.

Accepted Answer

Stratification is a sampling technique that involves dividing a population into distinct subgroups or strata and then sampling from each stratum, which is a systematic approach, not random or without a plan.

Quiz 6: Fact-Finding Techniques for Requirements Discovery