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

What is the use of a data flow diagram, Q. What is the use of a data flow d...

Q. What is the use of a data flow diagram? Explain the important concepts of data flow diagram. Ans. A data flow diagram is utilized to show the functional view of an applica

Explain throw-away prototyping and evolutionary prototyping, Q. Explain thr...

Q. Explain throw-away prototyping and evolutionary prototyping. Discuss the differences between the two. Ans Throw-Away Prototyping as well called close ended prototyping .

Search of Innovative idea, Hello! It is being stated that i m the student o...

Hello! It is being stated that i m the student of Software Engineering and i am in found of an innovative FYP idea ,that has not been implemented yet. kindly tell me some newer ide

What do you mean by static analysers, Q. What do you mean by Static analyse...

Q. What do you mean by Static analysers? Static analysers A static analyser operates from a pre-computed database of descriptive information derived from the source text of t

Ftr, EXPLAIN ABOUT DEFECT AMPLIFICATION AND REMOVAL IN SOFTWARE ENGINEERING...

EXPLAIN ABOUT DEFECT AMPLIFICATION AND REMOVAL IN SOFTWARE ENGINEERING

Explain about core dumps debugging technique, Q. Explain about Core dumps d...

Q. Explain about Core dumps debugging technique? Debugging is the activity of locating as well as correcting errors. Core dumps: -A printout of all registers as well as rel

Software document, explain software document.create the necessary documents...

explain software document.create the necessary documents for employee management system.

Define maintenance, Define maintenance. Maintenance is explained as the...

Define maintenance. Maintenance is explained as the process in which changes are executed by either modifying the existing system's architecture or by adding latest components

Infomation systems, How can a company improve quality of business informati...

How can a company improve quality of business information?

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