This document provides an overview of software testing concepts. It discusses the meaning of software testing, the software testing lifecycle, and principles and techniques of software testing. The principles section explains 7 key principles such as that exhaustive testing is impossible and defects cluster in some modules. The techniques section describes manual testing approaches like walkthroughs and inspections, as well as automated testing types including correctness, performance, reliability, and security testing. The overall purpose is to introduce students to fundamental software testing concepts.
Testing throughout the software life cycle - Testing & Implementationyogi syafrialdi
The development process adopted for a project will depend on the project aims and goals. There are numerous development life cycles that have been developed in order to achieve different required objectives.
Software validation do's and dont's may 2013John Cachat
Software validation is often times a very misunderstood concept. For FDA regulated industries, there are clear expectations including “the least burdensome approach.” Validation alone does not guarantee software quality—many other aspects of software engineering are required.
Join software expert, John Cachat, as he discusses how to solve several software validation issues, including:
Requirements
Defect Prevention
Time and Effort
Software Life Cycle
Plans
Procedures
Software Validation After a Change
Validation Coverage
Independence of Review
Flexibility and Responsibility
Testing throughout the software life cycle - Testing & Implementationyogi syafrialdi
The development process adopted for a project will depend on the project aims and goals. There are numerous development life cycles that have been developed in order to achieve different required objectives.
Software validation do's and dont's may 2013John Cachat
Software validation is often times a very misunderstood concept. For FDA regulated industries, there are clear expectations including “the least burdensome approach.” Validation alone does not guarantee software quality—many other aspects of software engineering are required.
Join software expert, John Cachat, as he discusses how to solve several software validation issues, including:
Requirements
Defect Prevention
Time and Effort
Software Life Cycle
Plans
Procedures
Software Validation After a Change
Validation Coverage
Independence of Review
Flexibility and Responsibility
Software Quality Analyst and Software Quality Managementنور شزننا
This presentation slide is purposely for our Software Quality course. You will notice less words, as we had been given only 10 minutes to present. All information is taken through our research on internet. Thanks to all worldwide SE Experts for your valuable knowledge.
Testing is the process of evaluating a system or its component(s) with the intent to find whether it satisfies the specified requirements or not. In simple words, testing is executing a system in order to identify any gaps, errors, or missing requirements in contrary to the actual requirements.
Software Quality Analyst and Software Quality Managementنور شزننا
This presentation slide is purposely for our Software Quality course. You will notice less words, as we had been given only 10 minutes to present. All information is taken through our research on internet. Thanks to all worldwide SE Experts for your valuable knowledge.
Testing is the process of evaluating a system or its component(s) with the intent to find whether it satisfies the specified requirements or not. In simple words, testing is executing a system in order to identify any gaps, errors, or missing requirements in contrary to the actual requirements.
This paper describes the different techniques of testing the software. This paper explicitly addresses the idea for testability and the important thing is that the testing itself-not just by saying that testability is a desirable goal, but by showing how to do it. Software testing is the process we used to measure the quality of developed software. Software Testing is not just about error-finding and their solution but also about checking the client requirements and testing that those requirements are met by the software solution. It is the most important functional phase in the Software Development Life Cycle(SDLC) as it exhibits all mistakes, flaws and errors in the developed software. Without finding these errors, technically termed as ‘bugs,’ software development is not considered to be complete. Hence, software testing becomes an important parameter for assuring quality of the software product. We discuss here about when to start and when to stop the testing of software. How errors or Bugs are formed and rectified. How software testing is done i.e. with the help of Team Work.
Software testing for project report .pdfKamal Acharya
Methods of Software Testing There are two basic methods of performing software testing: 1. Manual testing 2. Automated testing Manual Software Testing As the name would imply, manual software testing is the process of an individual or individuals manually testing software. This can take the form of navigating user interfaces, submitting information, or even trying to hack the software or underlying database. As one might presume, manual software testing is labor-intensive and slow.
The Essential Guide to Software Testing.pdfKajal Digital
Software testing is a critical component of the software development life cycle, playing a pivotal role in ensuring the quality, reliability, and functionality of a software application. In a world where technology is constantly evolving, and user expectations are soaring, comprehensive software testing has become more vital than ever. In this article, we will delve into the importance of software testing, its various types, methodologies, and best practices that organizations should adopt to deliver top-notch software products.
Types of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating systemTypes of operating system
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
What is Unit Testing? - A Comprehensive Guideflufftailshop
Software development involves different steps and processes, ranging from writing code and testing every function to debugging and deploying. Unit testing is an important test method used by QA teams to ensure that a software product is free of errors and meets all essential requirements.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
This is a presentation by Dada Robert in a Your Skill Boost masterclass organised by the Excellence Foundation for South Sudan (EFSS) on Saturday, the 25th and Sunday, the 26th of May 2024.
He discussed the concept of quality improvement, emphasizing its applicability to various aspects of life, including personal, project, and program improvements. He defined quality as doing the right thing at the right time in the right way to achieve the best possible results and discussed the concept of the "gap" between what we know and what we do, and how this gap represents the areas we need to improve. He explained the scientific approach to quality improvement, which involves systematic performance analysis, testing and learning, and implementing change ideas. He also highlighted the importance of client focus and a team approach to quality improvement.
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
The Indian economy is classified into different sectors to simplify the analysis and understanding of economic activities. For Class 10, it's essential to grasp the sectors of the Indian economy, understand their characteristics, and recognize their importance. This guide will provide detailed notes on the Sectors of the Indian Economy Class 10, using specific long-tail keywords to enhance comprehension.
For more information, visit-www.vavaclasses.com
How libraries can support authors with open access requirements for UKRI fund...
Software Testing
1. Learning Module I
Software Testing
By
Harsimrat Deo
(Assistant Professor, PG Department of Computer
Science, Mata Gujri College, Fatehgarh-Sahib)
2. Topics to be Covered
Meaning of software testing
Software testing lifecycle
Principles of software testing
Techniques of software testing
3. Learning Outcomes
After going through this module the students will be
able to know the concept of software testing
Understand the software testing lifecycle
Learn principles of software testing and
Know the techniques of software testing
4. Software testing refers to process of
evaluating the software with intention to find
out error in it.
Software testing is a technique aimed at
evaluating an attribute or capability of a
program or product and determining that it
meets its quality.
Software testing is also used to test the
software for other software quality factors
like reliability, usability, integrity, security,
capability, efficiency, portability,
maintainability, compatibility etc.
Software Testing
7. 1. Testing shows the presence of bugs
Testing an application can only reveal that
one or more defects exist in the application,
however, testing alone cannot prove that the
application is error free. Therefore, it is
important to design test cases which find as
many defects as possible.
8. 2. Exhaustive testing is impossible
Unless the application under test (AUT)
has a very simple logical structure and
limited input, it is not possible to test all
possible combinations of data and
scenarios. For this reason, risk and
priorities are used to concentrate on the
most important aspects to test.
9. 3. Early testing
The sooner we start the testing activities the
better we can utilize the available time. As
soon as the initial products, such the
requirement or design documents are
available, we can start testing. It is common
for the testing phase to get squeezed at the
end of the development lifecycle, i.e. when
development has finished, so by starting
testing early, we can prepare testing for each
level of the development lifecycle.
10. How Much Testing Is Enough?
Another important point about early
testing is that when defects are found
earlier in the lifecycle, they are much
easier and cheaper to fix. It is much
cheaper to change an incorrect
requirement than having to change a
functionality in a large system that is
not working as requested or as
designed!
11. 4. Defect clustering
During testing, it can be observed that most of
the reported defects are related to small number
of modules within a system. i.e. small number of
modules contain most of the defects in the
system. This is the application of the Pareto
Principle to software testing: approximately 80%
of the problems are found in 20% of the
modules.
12. 5. The pesticide paradox
If you keep running the same set of tests over and over
again, chances are no more new defects will be discovered
by those test cases. Because as the system evolves, many
of the previously reported defects will have been fixed
and the old test cases do not apply anymore. Anytime a
fault is fixed or a new functionality added, we need to do
regression testing to make sure the new changed software
has not broken any other part of the software. However,
those regression test cases also need to change to reflect
the changes made in the software to be applicable and
hopefully fine new defects.
13. 6. Testing is context dependent
Different methodologies, techniques and types of
testing is related to the type and nature of the
application. For example, a software application in a
medical device needs more testing than a games
software. More importantly a medical device software
requires risk based testing, be compliant with medical
industry regulators and possibly specific test design
techniques. By the same token, a very popular website,
needs to go through rigorous performance testing as
well as functionality testing to make sure the
performance is not affected by the load on the servers.
14. 7. Absence of errors fallacy
Just because testing didn’t find any defects in
the software, it doesn’t mean that the software
is ready to be shipped. Were the executed tests
really designed to catch the most defects? or
where they designed to see if the software
matched the user’s requirements? There are
many other factors to be considered before
making a decision to ship the software
16. 1. Manual testing (static testing): It is a
slow process and laborious where testing is
done statically .It is done in early phase of
life cycle. It is also called static testing. It is
done by analyst, developer and testing team.
Different Manual testing Techniques are as
follows:-
A) walk through
B) Informal Review
C) Technical Review
D) Inspection
17. A) Walk through:
•It is not a formal process/review
•It is led by the authors
•Author guide the participants through the
document according to his or her thought
process to achieve a common understanding
and to gather feedback.
18. B) Informal Review:
Informal reviews are applied many times during
the early stages of the life cycle of the document.
A two person team can conduct an informal
review. In later stages these reviews often involve
more people and a meeting. The goal is to keep
the author and to improve the quality of the
document. The most important thing to keep in
mind about the informal reviews is that they are
not documented.
19. C) Technical Review:
A Technical review is a static white-box
testing technique which is conducted to
spot the defects early in the life cycle that
cannot be detected by black box testing
techniques.
20. •Technical Reviews are documented and use
a defect detection process that has peers and
technical specialist as part of the review
process.
•The Review process doesn't involve
management participation.
•It is usually led by trained moderator who is
NOT the author.
•The report is prepared with the list of issues
that needs to be addressed.
21. D) Inspection:
•It is the most formal review type
•It is led by the trained moderators
•During inspection the documents are prepared and
checked thoroughly by the reviewers before the
meeting
•A separate preparation is carried out during which the
product is examined and the defects are found
•The defects found are documented in a logging list or
issue log
•A formal follow-up is carried out by the moderator
applying exit criteria
•It involves peers to examine the product
22. 2. Automated Testing (Dynamic testing):
In this tester runs the script on the testing tool
and testing is done. Automated testing is also
called dynamic testing.
Automated testing is classified into four Types:-
A) Correctness testing
B) Performance testing
C) Reliability testing
D) Security testing
23. A) Correctness Testing:
Correctness is the minimum requirement of
software. Correctness testing will need some
type of oracle, to tell the right behavior from the
wrong one. The tester may or may not know the
inside details of the software module under test.
Therefore either white box testing or black box
testing can be used.
24. B) Performance Testing :
Performance Testing involve all the phases as the
mainstream testing life cycle as an independent
discipline which involve strategy such as plan,
design, execution, analysis and reporting. Not all
software has specification on performance
explicitly. But every system will have implicit
performance requirements. Performance has
always been a great concern and driving force of
computer evolution.
25. C) RELIABILITY TESTING:
The purpose of reliability testing is to discover
potential problems with the design as early as
possible and, ultimately, provide confidence that
the system meets its reliability requirements.
Reliability testing is related to many aspects of
software in which testing process is included; this
testing process is an effective sampling method to
measure software reliability. In system after
software is developed reliability testing techniques
like analyze or fix techniques can be carried out to
check whether to use the software.
26. D) SECURITY TESTING :
Software quality, reliability and security are
tightly coupled. Flaws in software can be
exploited by intruders to opens security holes.
Security testing makes sure that only the
authorized personnel can access the program
and only the authorized personnel can access the
functions available to their security level. The
security testing is performed to check whether
there is any information leakage in the sense by
encrypting the application or using wide range of
software’s and hardware's and firewall etc.