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

The various steps of the reuse-oriented model, Describe the various steps o...

Describe the various steps of the reuse-oriented model.  The reuse-oriented model, also known as reuse-oriented development (ROD), is a method of software development in which

What does software engineering means, What does software engineering means ...

What does software engineering means ? Software engineering defined as a discipline in which theories, methods and tools are used to develop professional software.

Describe any types of feasibility study, System Development Life Cycle (SDL...

System Development Life Cycle (SDLC) stages are sometimes known as System Study. System concepts which are important in developing business information systems expedite problem sol

What is a variant, What is a variant Ans) "Variants" are versions of a p...

What is a variant Ans) "Variants" are versions of a program.

Describe about unit testing, Q. Describe about Unit Testing? Unit Testi...

Q. Describe about Unit Testing? Unit Testing: The unit testing is completed to test the individual module of the software. Test cases are designed to test the program functiona

Information storage and retrieval software, INFORMATION STORAGE  AND RETRI...

INFORMATION STORAGE  AND RETRIEVAL SOFTWARE: IBM (International Business Machines Corporation) was one of the earliest to invest money to develop software packages intended fo

Compare the manpower and development time, Q. Compare the Manpower and deve...

Q. Compare the Manpower and development time? Manpower may perhaps refer to labour Manpower either an abstract term for human labour effort as opposed to machines, animals a

Explain the per-action modeof QTP, Explain the Per-action modeof QTP ...

Explain the Per-action modeof QTP - Best used in below cases: - When creating simple record and run tests when there is just one or very few tests which correspond to int

What is sdlc , Explain  SDLC ? Ans) SDLC-( software development life cyc...

Explain  SDLC ? Ans) SDLC-( software development life cycle) is an acronym.

Pareto charts, Two partners in an upholstery business are interested in dec...

Two partners in an upholstery business are interested in decreasing the number of complaints from customers who have had furniture reupholstered by their staff. For the past six mo

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