Explain basic execution time model, Software Engineering

Assignment Help:

Q. Explain Basic Execution Time Model?

The model was developed by the J.D. MUSA in 1979(MUSA79) and is based on execution time. It is presumed that failures may occur according to a non-homogeneous Poisson Process (NHPP) Real world events may be described using Poisson processes. Instance of Poisson processes are

- A Number of telephone calls expected in a given period of time

- Expected figure of road accidents in a given period of time

- Expected figure of persons visiting in a shopping mall in a given period of time.

In this model the reduce in failure intensity as a function of the number of failures observed is constant and is given as:

288_Explain Basic Execution Time Model.png

Where Initial failure intensity at the start of execution.

V0 Number of failures experienced, if program is executed for Infinite time period μ Average as well expected number of failures experienced at a given point in time. These models imply a uniform operational profile. If every input class are selected equally often the various faults have an equal probability of manifesting themselves. The correction of whichever of those faults then contributes an equal decrease in the failure intensity. The negative sign publicized that there is a negative slope meaning thereby a decrementing trend in failure intensity.


Related Discussions:- Explain basic execution time model

Explain about function count - software metrics, Q. Explain about Function ...

Q. Explain about Function count? Function count:- It measures the functionality from the user point of view that is on the basis of what the user requests and receives in ret

What are the aims of analysis modelling, What are the aims of Analysis mode...

What are the aims of Analysis modelling? i. To make apparent what the customer wants. ii. To set up a basis for the creation of software design. iii. To devise a set of v

Software availability, Software Availability: In the present day conte...

Software Availability: In the present day context, software suppliers have realised the potential demand and also the special requirements of library and information professio

Explain any ten case tools, Question 1 Explain black box and white box tes...

Question 1 Explain black box and white box testing techniques Question 2 Explain different roles of the software development? Question 3 List out different project

Explain walk-through, Explain Walk-through? Ans) A walk-through (in soft...

Explain Walk-through? Ans) A walk-through (in software QA) is a casual meeting for evaluation or informational purposes. A walk-through is also a method at an abstract level. It

Software Metircs, I have a comprehensive question for Software Metrics ...i...

I have a comprehensive question for Software Metrics ...it is 16 question

How the class concept used in software engineering, Q. How the Class concep...

Q. How the Class concept used in Software Engineering? Class:- A class encapsulates data and procedural abstractions required to describe the content and behavior of some real

Explain the software design process, What is the work product of software d...

What is the work product of software design process and who does this? A design model that encompasses architectural, component level, interface and their representations is t

Solution manual, i need solution manual for software engineering |10 editio...

i need solution manual for software engineering |10 edition by ian Sommerville

Explain acceptance testing and beta testing, Q. Explain acceptance testing ...

Q. Explain acceptance testing and beta testing? Acceptance Testing as well as Beta testing: System tests are designed to authenticate a fully developed system to guarantee th

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