This topic contains a solution. Click here to go to the answer

Author Question: Identify and briefly discuss the implications to a project team of classifying a piece of software ... (Read 1075 times)

Cooldude101

  • Hero Member
  • *****
  • Posts: 557
Identify and briefly discuss the implications to a project team of classifying a piece of software as safety critical.

Question 2

What is the difference between system reliability and system safety? Give an example of a system that operates reliably but not safely.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

DHRUVSHAH

  • Sr. Member
  • ****
  • Posts: 317
Answer to Question 1

When developing safety-critical systems, a key assumption must be that safety will not automatically result from following an organizations standard development methodology. Safety-critical software must go through a much more rigorous and time-consuming development process than other kinds of software. All tasksincluding requirement definition, systems analysis, design, coding, fault analysis, testing, implementation, and change controlrequire additional steps, more thorough documentation, and vigilant checking and rechecking. As a result, safety-critical software takes much longer to complete and is much more expensive to develop.

Answer to Question 2

Reliability and safety are two different system characteristics. Reliability has to do with the capability of the system to continue to perform; safety has to do with the ability of the system to perform in a safe manner. Thus, a system could be reliable but not safe. For example, an antiaircraft missile control system may continue to operate under a wide range of operating conditions so that it is considerably reliable. If, however, the control system directs the missile to change direction and to fly back into its launching device, it is certainly unsafe.




Cooldude101

  • Member
  • Posts: 557
Reply 2 on: Jun 24, 2018
Excellent


triiciiaa

  • Member
  • Posts: 349
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

In 1885, the Lloyd Manufacturing Company of Albany, New York, promoted and sold "Cocaine Toothache Drops" at 15 cents per bottle! In 1914, the Harrison Narcotic Act brought the sale and distribution of this drug under federal control.

Did you know?

A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.

Did you know?

In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

Did you know?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

Did you know?

The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.

For a complete list of videos, visit our video library