The document discusses various aspects of software testing including definitions, principles, activities, goals, teams, and perspectives. It defines software testing as the process of analyzing a software item to detect differences between existing and required conditions, known as bugs. Some key testing principles outlined include that test cases must include expected outputs and be written for both valid and invalid inputs. Testing activities discussed are planning, design, setup, execution, analysis and reporting, and management. The goals of testing are to ensure requirements, design, code, and resource quality. The document also discusses manual versus automated testing and different testing methods, stages, cases, types, and techniques for static testing.
Software testing is the process of evaluation a software item to detect differences between given input and expected output. Also to assess the feature of A software item. Testing assesses the quality of the product. Software testing is a process that should be done during the development process. In other words software testing is a verification and validation process.
Software testing can also provide an objective, independent view of the software to allow the business to appreciate and understand the risks of software implementation. Test techniques include, but are not limited to the process of executing a program or application with the intent of finding software bugs (errors or other defects).
Software testing can be stated as the process of validating and verifying that a computer program/application/product:
• meets the requirements that guided its design and development,
• works as expected,
• can be implemented with the same characteristics,
• and satisfies the needs of stakeholders.
Software Development Process Cycle:-
PLAN (P): Device a plan. Define your objective and determine the strategy and supporting methods required to achieve that objective.
DO (D): Execute the plan. Create the conditions and perform the necessary training to execute the plan.
CHECK (C): Check the results. Check to determine whether work is progressing according to the plan and whether the results are obtained.
ACTION (A): Take the necessary and appropriate action if checkup reveals that the work is not being performed according to plan or not as anticipated.
Software Testing: History, Trends, Perspectives - a Brief OverviewSoftheme
In this presentation you can learn about different types of software testing, new technologies and methodologies. It contains an overview of software testing perspectives.
Testbytes is a community of software testers who are passionate about quality and love to test. We develop an in-depth understanding of the applications under test and include software testing strategies that deliver quantifiable results.
In short, we help in building incredible software.
Software testing is the process of evaluation a software item to detect differences between given input and expected output. Also to assess the feature of A software item. Testing assesses the quality of the product. Software testing is a process that should be done during the development process. In other words software testing is a verification and validation process.
Software testing can also provide an objective, independent view of the software to allow the business to appreciate and understand the risks of software implementation. Test techniques include, but are not limited to the process of executing a program or application with the intent of finding software bugs (errors or other defects).
Software testing can be stated as the process of validating and verifying that a computer program/application/product:
• meets the requirements that guided its design and development,
• works as expected,
• can be implemented with the same characteristics,
• and satisfies the needs of stakeholders.
Software Development Process Cycle:-
PLAN (P): Device a plan. Define your objective and determine the strategy and supporting methods required to achieve that objective.
DO (D): Execute the plan. Create the conditions and perform the necessary training to execute the plan.
CHECK (C): Check the results. Check to determine whether work is progressing according to the plan and whether the results are obtained.
ACTION (A): Take the necessary and appropriate action if checkup reveals that the work is not being performed according to plan or not as anticipated.
Software Testing: History, Trends, Perspectives - a Brief OverviewSoftheme
In this presentation you can learn about different types of software testing, new technologies and methodologies. It contains an overview of software testing perspectives.
Testbytes is a community of software testers who are passionate about quality and love to test. We develop an in-depth understanding of the applications under test and include software testing strategies that deliver quantifiable results.
In short, we help in building incredible software.
Software Testing Fundamentals | Basics Of Software TestingKostCare
Learn the fundamental techniques and approaches to software testing and enhanced comprehend what to test, how to test it, and in what contexts certain practices. Fundamentals of Software Testing offer an eye-opening view into this difficult task based on multiple sources of industry best practice.
Interview questions and answers for quality assuranceGaruda Trainings
Future of Software Testing is always good... as long as developers are developing projects we will be testing them and even when they stops developing then also we will test the enhancements and maintenance etc... Testing will always be needed
Customer will never accept the product Without complete testing .Scope of testing is always good as it gives everyone a confidence of the work we all are doing...Its always good to add more processes while doing testing so that one should not think that testing is a boring and easy job....Process is very imp. for testing.
Register for Free DEMO: www.p2cinfotech.com
email id: p2cinfotech@gmail.com
+1-732-546-3607 (USA)
Software testing is an investigation conducted to provide stakeholders with information about the quality of the product or service under test. I hope this ppt will help u to learn about software testing.
Software Testing Fundamentals | Basics Of Software TestingKostCare
Learn the fundamental techniques and approaches to software testing and enhanced comprehend what to test, how to test it, and in what contexts certain practices. Fundamentals of Software Testing offer an eye-opening view into this difficult task based on multiple sources of industry best practice.
Interview questions and answers for quality assuranceGaruda Trainings
Future of Software Testing is always good... as long as developers are developing projects we will be testing them and even when they stops developing then also we will test the enhancements and maintenance etc... Testing will always be needed
Customer will never accept the product Without complete testing .Scope of testing is always good as it gives everyone a confidence of the work we all are doing...Its always good to add more processes while doing testing so that one should not think that testing is a boring and easy job....Process is very imp. for testing.
Register for Free DEMO: www.p2cinfotech.com
email id: p2cinfotech@gmail.com
+1-732-546-3607 (USA)
Software testing is an investigation conducted to provide stakeholders with information about the quality of the product or service under test. I hope this ppt will help u to learn about software testing.
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.
Software Testing
Different Types of Software Testing
Verification
Validation
Unit Testing
Beta Testing
Alpha Testing
Black Box Testing
White Box testing
Error
Bug
This is the power point presentation on Software Testing. Software Testing is the process of finding error or bug in the developed software product based on the client requirement.
This power point presentation give the basic knowledge about the software testing.
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Acetabularia Information For Class 9 .docxvaibhavrinwa19
Acetabularia acetabulum is a single-celled green alga that in its vegetative state is morphologically differentiated into a basal rhizoid and an axially elongated stalk, which bears whorls of branching hairs. The single diploid nucleus resides in the rhizoid.
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.
Honest Reviews of Tim Han LMA Course Program.pptxtimhan337
Personal development courses are widely available today, with each one promising life-changing outcomes. Tim Han’s Life Mastery Achievers (LMA) Course has drawn a lot of interest. In addition to offering my frank assessment of Success Insider’s LMA Course, this piece examines the course’s effects via a variety of Tim Han LMA course reviews and Success Insider comments.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Biological screening of herbal drugs: Introduction and Need for
Phyto-Pharmacological Screening, New Strategies for evaluating
Natural Products, In vitro evaluation techniques for Antioxidants, Antimicrobial and Anticancer drugs. In vivo evaluation techniques
for Anti-inflammatory, Antiulcer, Anticancer, Wound healing, Antidiabetic, Hepatoprotective, Cardio protective, Diuretics and
Antifertility, Toxicity studies as per OECD guidelines
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
Palestine last event orientationfvgnh .pptxRaedMohamed3
An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
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Dive into the world of AI! Experts Jon Hill and Tareq Monaur will guide you through AI's role in enhancing nonprofit websites and basic marketing strategies, making it easy to understand and apply.
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
1. Software Testing
5
“Testing is the process of executing a program or system with the intent of finding
errors.” by Myers 1979
Software testing is the process of analyzing a software item to detect the differences
between existing and required conditions (that is, bugs) and to evaluate the features
of the software item (IEEE, 1986; IEEE, 1990).
2. Testing Principles
6
Glenford Myers in his book “The Art of Software Testing” suggested the following
testing principles
A necessary part of a test case is a definition of the expected output or result.
A programmer should avoid attempting to test his or her own program.
Test cases must be written for input conditions that are invalid and unexpected, as well as for
those that are valid and expected.
Examining a program to see if it does not do what it is supposed to do is only half the battle;
the other half is seeing whether the program does what it is not supposed to do.
Avoid throwaway test cases unless the program is truly a throwaway program.
Do not plan a testing effort under the assumption that no errors will be found.
The probability of the existence of more errors in a section of a program is proportional to the
number of errors already found in that section.
Testing is an extremely creative and intellectually challenging task.
Exhaustive testing is not possible but we can assure that all conditions have been exercised
3. Testing Activities
8
Test Planning
Define a software test plan by specifying a test schedule for a test process and its
activities, as well as assignments test requirements and items test strategy
Test Design and Specification
Design Test scripts and Test cases cases to achieve a targeted testcoverage.
Test Set up
Testing tools (Environment Set-up)
Test Execution
Run test cases manually or automatically
Test Result Analysis andReporting
Report software testing results and conduct test result analysis
4. Testing Activities
9
Test Management and Measurement
Manage software testing activities, control testing schedule, measure testing
complexity in terms of cost
Test Configuration Management
Manage and maintain different versions of software test suites, test environment and
tools, and documents for various product versions.
5. Software Testing Goals
Requirements quality.
– SQA must ensure that the software team has properly reviewed the requirements model to
achieve a high level of quality.
Design quality.
– Every element of the design model should be assessed by the software team to ensure that it
exhibits high quality and that the design itself conforms to requirements.
Code quality.
– Source code and related work products (e.g., other descriptive information) must conform to
local coding standards and exhibit characteristics that will facilitate maintainability.
Resource Management
– A software team should apply available resources in a way that has the highest likelihood of
achieving a high-quality result. SQA analyzes the allocation of resources for reviews and testing to
assess whether they are being allocated in the most effective manner.
8. Software Testing Limits
11
Due to the testing time limit, it is impossible to achieve total confidence.
Wecan never be sure the specifications are 100% correct.
Test engineers never be sure that they completely understand a software product.
Wenever have enough resources to perform software testing.
Wecan never be certain that we achieve 100% adequate software testing.
10. Manual testing
21
This type includes the testing of the Software manually i.e. without using any automated tool .
In this type the tester takes over the role of an end user and test the Software to identify any un-
expected behavior or bug.
Testers use test plan, test cases or test scenarios to test the Software to ensure the completeness of
testing.
Condition: Manual tests can be used in situations where the steps cannot be automated, for
example to determine a Usability Testing : This is an area in which you need to measure how
user-friendly, efficient, or convenient the software or product is for the end users. Here, human
observation is the most important factor, so a manual approach is preferable.
In manual testing Tester will create test cases, Tester will execute test cases, tester will write bug
report manually.
Limitations: Load Testing , performance testing
11. Manual testing
22
Manual testing allows for human
observation, which may be more
useful if the goal is user friendliness
or improved customer experience.
More Time Consuming activity
Boring and repetitive
Efficiency depends on tester
12. Automated testing
23
Automation testing, also known as Test Automation, is when the tester writes scripts and uses
another software to test the software.
This process involves automation of a manual process. Automation Testing is used to re-run the
test scenarios that were performed manually, quickly and repeatedly.
Automation is a not a Replacement of Manual Testing
Done properly, automated software testing can help
Improve accuracy
speed up the testingprocess,
increase test coverage,and
ultimately provide greater confidence in the quality of the software being tested.
13. Automated testing
24
Efficient (No variation is results) Automated testing does not entail human
observation and cannot guarantee user-
friendliness or positive customer
experience.
14. Manual vs Automated Testing
25
MANUAL AUTOMATED
Time consuming and tedious Fast
Huge investment in human resources Less investment in human resources
Less reliable More reliable
Non Programmable Programmable
Not Reusable Reusable
High Risk of missing out something Less Risk of missing out something
15. Testing Stages
26
Unit testing/Component Testing/Moduletesting
Integration Testing
System testing
Acceptance testing
16. Test case
27
A test case in software engineering is a set of conditions or variables under which a tester will
determine whether an application or software system meets specifications.
A test case has components that describes an input, action or event and an expected response,
to determine if a feature of an application is working correctly.
Result : Pass / Fail
Test Suite: A collection of test cases.
17. Test Case
28
Test Case ID: It is unique number given to test case in order to be identified.
Test description: The description of test case you are going to test.
Revision history: Each test case has to have its revision history in order to know when and by
whom it is created or modified.
Function to be tested: The name of function to be tested.
Test Setup: Anything you need to set up outside of your application for example printers,
network and so on.
Test Execution: It is detailed description of every step of execution.
Expected Results: The description of what you expect the function to do.
Actual Results: pass / failed
If pass - What actually happen when you run thetest.
If failed - put in description of what you'veobserved.
19. Static Testing
5
In software development, static testing, also called dry run testing, is a form of
software testing where the authors manually read their own documents/code to find
any errors.
Primarily syntax checking of the code/document and/or manually reviewing the
code or document to find logic errors also.
The term ―”static” in this context means ―not while running or ―not while
executing
20. Objectives of Static Testing
6
Static testing is the least expensive form of testing and has the largest
potential for reducing defects in software under development.
The primary objective of static testing is defect reduction in the software by
reducing defects in the documentation from which the software is developed.
21. Static Testing Approach
7
Consider using a two-step approach to static testing.
For the first step, clean up the cosmetic appearance of the document: check spelling, check
grammar, check punctuation, and check formatting.
The benefit of doing the first step is that when the document is cosmetically clean, the readers can
concentrate on the content.
The liability of skipping the first step is that if the document is not cosmetically clean, the readers
will surely stop reading the document for meaning and start proofreading to the detriment of
content review.
For the second step, use whatever techniques seem appropriate to focus expert review on document
contents.
Some popular and effective techniques used for content review are discussed in the next section
25. Fagan Inspection
11
Fagan inspection refers to a structured process of trying to find defects in documents
such as programming code, specifications, designs and others during various phases
of the software development process.
It is named after Michael Fagan who is credited with being the inventor of formal
software inspections.
Fagan Inspection is a group review method used to evaluate output of a given
process.
In the process of software inspection the defects which are found are categorized in
two categories:
Major Defects
Minor defects
26. Fagan Inspection
12
The defects which are incorrect or even missing functionality or
specifications can be classified as major defects: the software will not function
correctly when these defects are not being solved.
In contrast to major defects, minor defects do not threaten the correct
functioning of the software, but are mostly small errors like spelling mistakes
in documents or optical issues like incorrect positioning of controls in a
program interface.
27. Fagan Inspection
13
inspection the inspection process consists of the
Typical operations
In a typical Fagan
following operations:
Planning
Preparation of materials
Arrangement of participants
Arrangement of meeting place
Overview
Author-inspectors meeting
Assignment of roles
Preparation or Individual Inspection
Independent analysis/examination
Code as well as other document
28. Fagan Inspection
14
Individual results:
questions
potential defects
The participants prepare their roles
Inspection meeting
Meeting to collect individual inspection results
Defect identification, but not solutions, to ensure inspection effectiveness
Fagan inspection typically involves about 4 to 6 people in the inspection team
No more than 2 hours
Inspection report
Rework (performed by the author)
Rework is the step in software inspection in which the defects found during the inspection meeting
are resolved by the author, designer or programmer.
29. Fagan Inspection
15
Follow-up
In the follow-up phase of a Fagan Inspection, defects fixed in the rework phase should be verified.
The moderator is usually responsible for verifying rework. Sometimes fixed work can be accepted
without being verified, such as when the defect was trivial. In non-trivial cases, a full re-inspection is
performed by the inspection team (not only the moderator).
If verification fails, go back to the rework process.
30. Gilb Inspection
16
1. Planning (same to Fagan inspection)
2. Kickoff (Overview)
3. Individual Checking (Preparation)
4. Logging Meeting (Inspection)
5. a) Edit (Rework) b) Process brainstorming
6. Edit Audit (Follow-up)
Process brainstorming is added right after the inspection meeting. The focus of this step is root
cause analysis aimed at preventive actions and process improvement in the form of reduced
defect injections for future development activities
The team size is typically about four to six people
Checklists are extensively used, particularly for step 3
31. Inspection Session
17
During the session, two activities occur:
1. The author narrates, statement by statement, the logic of the program/ document. During the
discourse, other participants should raise questions, and they should be pursued to determine
whether errors exist. It is likely that the author rather than the other team members will find
many of the errors found during this narration.
2. The program is analyzed with respect to a checklist
The moderator is responsible for ensuring that the discussions proceed along productive lines and
that the participants focus their attention on finding errors, not correcting them. (The programmer
corrects errors after the inspection session.)
32. Inspection Session
18
The optimal amount of time for the inspection session appears to be from 90 to 120 minutes.
Since the session is a mentally taxing experience, longer sessions tend to be less productive.
Most inspections proceed at a rate of approximately 150 program statements per hour.
For that reason, large programs/documents should be examined in multiple inspections, each
inspection dealing with one or several parts.
Note that for the inspection process to be effective, the appropriate attitude must be
established. If the author views the inspection as an attack on his or her character and adopts
a defensive posture, the process will be ineffective. Rather, the programmer must approach the
process with an egoless attitude and must place the process in a positive and constructive light:
The objective of the inspection is to find errors in the program, thus improving the quality of the
work.
For this reason, most people recommend that the results of an inspection be a confidential
matter, shared only among the participants.
33. Desk Checking
Desk Checking is one of the older practice of human error-detection process. A desk
check can be viewed as a one-person inspection or walkthrough: A person reads a
program, checks it with respect to an error list, and/or walks test data through it.
In other words you can say Manually testing the logic of a program.
34. Desk Checking Drawbacks
Desk checking is the least formal and least time-consuming static testing technique.
Of all the techniques, desk checking is the only one whereby the author is encouraged
to test his or her own document. The remaining techniques rely on independent eyes to
provide a more thorough and objective review.
For most people, desk checking is relatively unproductive.
Reason is that it runs counter to a testing principle ( that people are generally ineffective in
testing their own programs). For this reason, you could deduce that desk checking is best
performed by a person other than the author of the program.
36. Code Walkthrough
procedures and error-
The code walkthrough, like the inspection, is a set of detection
techniques for group code reading.
It shares much in common with the inspection process, but the procedures are
slightly different, and a different error-detection technique is employed.
Like the inspection, the walkthrough is an uninterrupted meeting of one to two
hours in duration.
The walkthrough team consists of three to five people.
One of these people plays a role similar to that of the moderator in the inspection
process, another person plays the role of a secretary (a person who records all
errors found), and a third person plays the role of a tester.
37. Code Walkthrough
Suggestions as to who the three to five people should be vary.
Of course, the programmer is one of those people. Suggestions for the
other participants include ,a highly experienced programmer, a programming-
language expert, a new programmer (to give a fresh, unbiased outlook), the
person who will eventually maintain the program
38. Code Walkthrough
The initial procedure is identical to that of the inspection process:
The participants are given the materials several days in advance to allow them to bone up on
the program.
However, the procedure in the meeting is different. Rather than simply reading the program or
using error checklists, the participants ―"play computer“ (role)
The person designated as the tester comes to the meeting armed with a small set of paper test
cases—representative sets of inputs (and expected outputs) for the program or module.
39. Code Walkthrough
During the meeting, each test case is
mentally executed. That is, the test data are
walked through the logic of the program.
The state of the program (i.e., the values of
the variables) is monitored on paper or
whiteboard.
Of course, the test cases must be simple in
nature and few in number, because people
execute programs at a rate that is many
orders of magnitude slower than a machine.
The walkthrough should have a follow-up
process similar to that described for the
inspection process.
41. Peer Ratings
Peer rating is a technique of evaluating anonymous programs in terms of their overall
quality, maintainability, extensibility, usability, and clarity. The purpose of the technique
is to provide programmer self-evaluation.
One person acts as an administrator. The administrator selects approximately 6 to 20
participants(6 is the minimum to preserve anonymity). The participants are expected to
have similar backgrounds (you shouldn’t group Java application programmers with
assembly language system programmers, for example).
Each participant is asked to select two of his or her own programs to be reviewed.
One program should be representative of what the participant considers to be his or
her finest work; the other should be a program that the programmer considers to be
poorer in quality.
Once the programs have been collected, they are randomly distributed to the
participants.
42. Peer Ratings
Each participant is given four programs to review. Two of the programs are the finest programs
and two are" poorer programs, but the reviewer is not told which is which.
Each participant spends 30 minutes with each program and then completes an evaluation form
after reviewing the program. After reviewing all four programs, each participant rates the relative
quality of the four programs. The evaluation form asks the reviewer to answer, on a scale from 1 to 7
(1 meaning definitely ―
y
e
s
,7 meaning definitely ―
n
o
,)
The reviewer also is asked for general comments and suggested improvements.
43. Peer Ratings
After the review, the participants are given the anonymous evaluation forms for their
two contributed programs. The participants also are given a statistical summary showing
the overall and detailed ranking of their original programs across the entire set of
programs, as well as an analysis of how their ratings of other programs compared with
those ratings of other reviewers of the same program.
The purpose of the process is to allow programmers to self-assess their programming
skills.