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 engineering, Software Engineering A  high technology system e...

Software Engineering A  high technology system encompasses a  number of  elements like   people, hardware, software, database, documentation, and process.  System engineering

Making, How can we make a software

How can we make a software

What is control coupling, Q. What is Control coupling? Control couplin...

Q. What is Control coupling? Control coupling: Module A as well as B are said to be control coupled if they communicate by passing of control information. This is typically a

What is the best effort estimation for software phases?, Hello, I am a CS ...

Hello, I am a CS graduate and i just got a new job in a software development company. My boss assigned me to come up with what he called "the perfect pie chart" basically he says

Define the product metrics, Q. Define the Product metrics? (i) Product ...

Q. Define the Product metrics? (i) Product metrics: Explains the characteristics of the product such as complexity, size, design features, performance, efficiency, reliability,

Explain metrics assumptions of software metrics, Explain Metrics assumption...

Explain Metrics assumptions of Software metrics Software metrics A software property can be calculated. The relationship exists among what we can measure and what we

Discuss in detail about delphi method, Discuss in detail about Delphi Metho...

Discuss in detail about Delphi Method. Procedure The co-ordinator represents a specification and assessment form to each expert. Co-ordinator calls a group discussion

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

Define software measurement, Define software measurement. A software me...

Define software measurement. A software measurement is a method or method that applies software calculates to a class of software engineering objects to attain a predefined goa

Case tools, #question2. Explain any ten CASE tools...

#question2. Explain any ten CASE tools...

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