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

Transaction mapping, how transaction mapping is done.??clear me with a brie...

how transaction mapping is done.??clear me with a brief example

Defining a prototype on the overall cost, Describe the effect of defining a...

Describe the effect of defining a prototype on the overall cost of the software project? The prototyping model: In this model, a prototype (an previous approximation of a fin

What do you mean by software engineering, Q. What do you mean by Software E...

Q. What do you mean by Software Engineering? What is the use of Software Engineering? Ans) Software engineering is engineering for software development. A simple program can be

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

Statistical and Numerical methods using C++, 5. Write a c++ program to find...

5. Write a c++ program to find the sum of 0.123 ??103 and 0.456 ??102 and write the result in three significant digits.

Pl sql, The company wants to offer an incentive of free shipping to those c...

The company wants to offer an incentive of free shipping to those customers who have not returned for two months. Create a procedure named PROMO_SHIP_SP that determines who these c

Micro cds-isis application, Micro CDS/ISIS Application: In libraries t...

Micro CDS/ISIS Application: In libraries there are a number of repetitive operations. If one Miens the procedures for ordering, receiving, processing and circulating a book, o

What are the benefits of using bi dashboards, Question: (a) Explain wha...

Question: (a) Explain what is meant by Dimensional Modeling as used in Business Intelligence (BI) solutions. (b) There has been a request from the Managing Director of an In

What is a state transition diagram, What is a state transition diagram? ...

What is a state transition diagram? State transition diagram is basically a collection of states and events. The events cause the system to change its state. It also show what

Show the different levels of cmm, Q. Show the Different levels of CMM? ...

Q. Show the Different levels of CMM? 1) Initial (maturity level 1)- At this the lowest level there are fundamentally no sound software engineering management practices in plac

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