Chapter 7

Question 1

When software is well-designed, programmers make no mistakes in turning design specifications into lines of code.

Answer 1

False

Question 1

In the context of Capability Maturity Model Integration, process is ad hoc and chaotic; organization tends to overcommit and processes are often abandoned during times of crisis in which of the following maturity levels?

Answer 1

initial

Question 2

An important technique used to develop ISO 9001-compliant quality systems by both evaluating reliability and determining the effects of system and equipment failures is which of the following?

Answer 2

Failure mode and effects analysis (FMEA)

Question 3

A failure mode describes how a product or process could fail to perform the desired functions described by the customer.

Answer 3

True

Question 4

Which of the following is an approach to minimizing the impact of software errors by independently implementing the same set of user requirements N times, where N could be 2, 3, 4, or more?

Answer 4

N-version programming

Question 5

Risk mitigation involves the reduction in either the likelihood or the impact of the occurrence of a risk.

Answer 5

True

Question 6

What type of programming is commonly found in airplane and spacecraft control systems?

Answer 6

Triple version programming

Question 7

Process-control computers enable the process to be monitored for variations from operating standards and to eliminate product defects before they affect which of the following?

Answer 7

quality

Question 8

One approach to quality assurance is to test the code for a completed unit of software by actually entering test data and comparing the results with the expected results in a process known as which of the following?

Answer 8

dynamic testing

Question 9

Software suppliers attempt to limit their liability by specifying that although software is warranted to run on a given machine configuration, no assurance is given as to what that software will do.

Answer 9

True

Question 10

Transference is the provision of multiple interchangeable components to perform a single function in order to cope with failures and errors.

Answer 10

False

Question 11

User acceptance testing is performed by trained end users to ensure that the system operates as they expect.

Answer 11

True

Question 12

What form of testing involves viewing the software unit as a device that has expected input and output behaviors but whose internal workings are unknown?

Answer 12

black-box testing

Question 13

An airline’s online ticket-reservation system and an electronic funds transfer system that moves money among banks, are examples of which of the following?

Answer 13

order-processing systems

Question 14

Risk analysis is important for safety-critical systems, but is useful for other kinds of software development as well.

Answer 14

True

Question 15

The safety engineer uses a logging and monitoring system to track which of the following?

Answer 15

hazards

Question 16

In the context of developing safety-critical systems, the safety engineer’s role is limited to producing a hazard log.

Answer 16

False

Question 17

Which family of standards serves many industries and organizations as a guide to quality products, services, and management?

Answer 17

ISO 9001

Question 18

Which of the following is true of strategies for engineering quality software?

Answer 18

The First release of any software rarely meets all its users’ expectations.

Question 19

Software developers do not typically work closely with safety and software engineers.

Answer 19

False