Define software reliability, Software Engineering

Assignment Help:

Define software reliability. What is the difference between hardware & software reliability?

Ans: Software reliability is the possibility that software will provide failure-free operation in a fixed environment for a fixed interval of time. Probability of failure is the possibility that the software will fail on the next input selected. Software reliability is usually measured per some unit of time whereas probability of failure is usually time independent. These two measures are able to be easily related if you know the frequency with which inputs are executed per unit of time. Mean-time-to-failure is an average interval of time between failures this is as well sometimes referred to as Mean-time-before-failure.

Software reliability is liable to change repeatedly during test periods. While hardware reliability may perhaps change during certain periods such as initial burn in or the end of useful life however it has a much greater tendency then software value.

Hardware faults aren't physical faults whereas software faults are design faults that are harder to classify, visualise, detect and correct. In reality the division among hardware and software reliability is somewhat artificial. Both perhaps defined in the same way therefore one may combine hardware and software reliability to get system reliability. The basis of failure in hardware has generally being physically deterioration.


Related Discussions:- Define software reliability

Software management, i have coursework on software management and dont know...

i have coursework on software management and dont know how to go about it. I want to find out if you will be able to help me on that. The task is to investgate(research informed pa

Registers, which are the invisible registers?

which are the invisible registers?

System analysis & design, Describe attributes, properties, and characterist...

Describe attributes, properties, and characteristics of system.

Define graph matrix and connection matrix, Q. Define graph matrix and conne...

Q. Define graph matrix and connection matrix. Ans: Graph matrix: A graph matrix is a square matrix whose size that is a number of rows and columns is equal to the number of n

What is verification represent, What is Verification represent? Verific...

What is Verification represent? Verification represents the set of actions that are performed to confirm that the software correctly implements the particular functionality.

Explain core dumps, Core dumps Core dumps are a debugging method. A pri...

Core dumps Core dumps are a debugging method. A printout of all relevant memory locations is obtained and studied. All dumps should be well documented and retained for possible

What are the various elements of data design, What are the various elements...

What are the various elements of data design? i. Data object - The data objects are identified and relationship between various data objects can be shown using ERD or data dict

Explain about non-functional requirement for a software, Q. Explain about n...

Q. Explain about non-functional requirement for a software ? Ans) Nonfunctional requirements are the basic characteristics of the system which will not be expressed as function

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd