Testing, QA, and QC are processes to ensure software quality. Testing identifies defects through intentional efforts to make software fail. QA ensures quality standards are followed throughout development. QC verifies software meets predefined standards. Together, testing, QA and QC aim to find and fix defects early to deliver high quality software. The document discusses various testing types like black box/white box testing and provides examples of real world software failures caused by a lack of effective testing.
Implementing Agile in an FDA Regulated EnvironmentTechWell
Developing medical devices that are subject to FDA approval has traditionally followed the waterfall methodology, largely due to the structure of the regulations that govern development practices. But we know from myriad case studies in different industries that agile methodologies are far superior in providing the highest value to customers in the shortest time to market. Neal Herman shares how one developer of complex medical devices embraced agile software development practices and proved that it could not only develop software faster with higher quality but also meet all regulatory requirements. Convincing the internal quality management, systems engineering, and regulatory departments was difficult, but the software department was able to overcome these obstacles and fundamentally change the company’s philosophy on product development. Since 2012, software development productivity is up 100 percent, and quality is up 200 percent. Now, after seeing these gains from the software department, agile is being rolled out to all areas of R&D including hardware.
Biomedical engineering work is subjected to stringent regulatory constraints that mandate a robust engineering process that conforms to all pertinent regulatory guidelines and imperatives.
Software development is an important component of any engineering project and as such, it should be equally addressed and properly integrated with the overall engineering process. To that effect, the following software development process is proposed. This process attempts to be well grounded in the nature of innovative Biomedical engineering work. There are inherent significant technology risks related to the development of innovative biomedical devices. These risks must be correctly identified, and mitigated throughout the entire engineering process. The main benefit of the software development process presented here is its explicit management of software risk factors as recommended by modern successful software development practices.
Presentation on the promises and pitfalls of applying Agile in a Quality Management System. How do you get the benefits of agile while maintaining quality and regulatory compliance?
Presentation by Pathfinder Software to the Agile Project Management Group and Health 2.0 group on how to get the benefits of agile development in an FDA regulated environment, based on Pathfinder's experience developing software for medical devices
Agile Development for FDA Regulated Medical SoftwareOrthogonal
The FDA regulates software for medical devices, and may in future regulate mobile medical software as well. Can you speed up time to market with Agile development in an FDA regulated medical environment?
Pathfinder Software shares their experience developing software using lean ux and agile software development best practices for medical devices and mobile medical software.
Implementing Agile in an FDA Regulated EnvironmentTechWell
Developing medical devices that are subject to FDA approval has traditionally followed the waterfall methodology, largely due to the structure of the regulations that govern development practices. But we know from myriad case studies in different industries that agile methodologies are far superior in providing the highest value to customers in the shortest time to market. Neal Herman shares how one developer of complex medical devices embraced agile software development practices and proved that it could not only develop software faster with higher quality but also meet all regulatory requirements. Convincing the internal quality management, systems engineering, and regulatory departments was difficult, but the software department was able to overcome these obstacles and fundamentally change the company’s philosophy on product development. Since 2012, software development productivity is up 100 percent, and quality is up 200 percent. Now, after seeing these gains from the software department, agile is being rolled out to all areas of R&D including hardware.
Biomedical engineering work is subjected to stringent regulatory constraints that mandate a robust engineering process that conforms to all pertinent regulatory guidelines and imperatives.
Software development is an important component of any engineering project and as such, it should be equally addressed and properly integrated with the overall engineering process. To that effect, the following software development process is proposed. This process attempts to be well grounded in the nature of innovative Biomedical engineering work. There are inherent significant technology risks related to the development of innovative biomedical devices. These risks must be correctly identified, and mitigated throughout the entire engineering process. The main benefit of the software development process presented here is its explicit management of software risk factors as recommended by modern successful software development practices.
Presentation on the promises and pitfalls of applying Agile in a Quality Management System. How do you get the benefits of agile while maintaining quality and regulatory compliance?
Presentation by Pathfinder Software to the Agile Project Management Group and Health 2.0 group on how to get the benefits of agile development in an FDA regulated environment, based on Pathfinder's experience developing software for medical devices
Agile Development for FDA Regulated Medical SoftwareOrthogonal
The FDA regulates software for medical devices, and may in future regulate mobile medical software as well. Can you speed up time to market with Agile development in an FDA regulated medical environment?
Pathfinder Software shares their experience developing software using lean ux and agile software development best practices for medical devices and mobile medical software.
Many organisations operatin in highly regulated environments, such as healthcare, have concluded that in order to achieve the next level of product quality and safety improvements, not to mention enhanced competitiveness, adoption of a more Agile approach is required. In this presentation, you will learn how the Agile software development approach for high assurance systems addresses many of the challenges found in many highly regulated enterprise environments.
Presented by Craig Langenfeld
This is my current work and thinking on how to do Scrum within heavily regulated industries like healthcare, government, and finance. For more information join my community at http://scrumandcompliance.com/
In this chapter,i was introduce you to the fundamentals of testing:why testing is needed;its limitations,objectives and purpose;the principles behind testing; the process that testers follow; and some ofthe psychological factors that testers must consider in their work. By reading this chapter you'll gain an understanding of the fundamentals of testing and be able to describe those fundamentals
Thought Frameworks has a reputation of outstanding Software Testing services, providing Smart Test Automation, Performance & Functional capabilities with hands-on open & commercial testing tools.
We are working from a position of strength for consumers like Cision, CellTrust, Chegg, Scantron, Verisign, Infusion,12Twenty to name a few, operating across the US, UK & Israel. With a focus on Education, Healthcare, Media,Telecom, Banking, Insurance & Retail Sector.
We will continue to do many of the things we've always done well. But we are making the significant approach to new situations by bringing fresh insight with extremely experienced QA professionals for premium quality.
Simplify your QA processes and find innovative ways to grow your business.
A RELIABLE AND AN EFFICIENT WEB TESTING SYSTEMijseajournal
To improve the reliability and efficiency of Web Software, the Testing Team should be creative and
innovative, the experience and intuition of Tester also matters a lot. And most often the destructive nature
of Tester brings reliable software to the user. Actually, Testing is the responsibility of everybody who is
involved in the Project. But, one’s personal curiosity and attention is more important than the various
techniques and tools available in the market for Web Testing due to the phenomena that Software Testing is
an art. In this study, we are actually discussing certain techniques and tools which can be helpful to
minimize bugs in Web Application and achieve reliability and efficiency to a certain level. Indeed, for
bettering the quality of Web Application, Testing may not be considered as the only effective method
because no one can certify that a system is bug-free. This paper presents some essential web testing
techniques, strategies, methods and tools which need to be focused on when performing Web Testing for
several web applications in order to achieve better results.
SolarWinds Application Performance End User Survey (Australia)SolarWinds
The proliferation of BYOD, cloud, SaaS and consumer technologies in the workplace have made the application the disruptive technology that will drive business IT into the coming decades. At the same time, the application delivery chain is becoming more complex to support as applications become more networked, virtualization drives IT infrastructure convergence and abstraction and end users become more mobile. These survey findings highlight the impact of application performance and availability on business end users, and their experiences with and expectations of IT when problems arise. Chief among the findings is that while the application is now the heart of businesses of all sizes and its performance is the lifeblood of success, IT continues to struggle to ensure its performance and availability.
SolarWinds Application Performance End User Survey (Denmark)SolarWinds
The proliferation of BYOD, cloud, SaaS and consumer technologies in the workplace have made the application the disruptive technology that will drive business IT into the coming decades. At the same time, the application delivery chain is becoming more complex to support as applications become more networked, virtualization drives IT infrastructure convergence and abstraction and end users become more mobile. These survey findings highlight the impact of application performance and availability on business end users, and their experiences with and expectations of IT when problems arise. Chief among the findings is that while the application is now the heart of businesses of all sizes and its performance is the lifeblood of success, IT continues to struggle to ensure its performance and availability.
Fundamentals of testing - Testing & Implementationsyogi syafrialdi
As we go through this section, watch for the Syllabus terms bug, defect, error, failure, fault, mistake, quality, risk, software, testing and exhaustive testing. You'll find these terms defined in the glossary.
Many organisations operatin in highly regulated environments, such as healthcare, have concluded that in order to achieve the next level of product quality and safety improvements, not to mention enhanced competitiveness, adoption of a more Agile approach is required. In this presentation, you will learn how the Agile software development approach for high assurance systems addresses many of the challenges found in many highly regulated enterprise environments.
Presented by Craig Langenfeld
This is my current work and thinking on how to do Scrum within heavily regulated industries like healthcare, government, and finance. For more information join my community at http://scrumandcompliance.com/
In this chapter,i was introduce you to the fundamentals of testing:why testing is needed;its limitations,objectives and purpose;the principles behind testing; the process that testers follow; and some ofthe psychological factors that testers must consider in their work. By reading this chapter you'll gain an understanding of the fundamentals of testing and be able to describe those fundamentals
Thought Frameworks has a reputation of outstanding Software Testing services, providing Smart Test Automation, Performance & Functional capabilities with hands-on open & commercial testing tools.
We are working from a position of strength for consumers like Cision, CellTrust, Chegg, Scantron, Verisign, Infusion,12Twenty to name a few, operating across the US, UK & Israel. With a focus on Education, Healthcare, Media,Telecom, Banking, Insurance & Retail Sector.
We will continue to do many of the things we've always done well. But we are making the significant approach to new situations by bringing fresh insight with extremely experienced QA professionals for premium quality.
Simplify your QA processes and find innovative ways to grow your business.
A RELIABLE AND AN EFFICIENT WEB TESTING SYSTEMijseajournal
To improve the reliability and efficiency of Web Software, the Testing Team should be creative and
innovative, the experience and intuition of Tester also matters a lot. And most often the destructive nature
of Tester brings reliable software to the user. Actually, Testing is the responsibility of everybody who is
involved in the Project. But, one’s personal curiosity and attention is more important than the various
techniques and tools available in the market for Web Testing due to the phenomena that Software Testing is
an art. In this study, we are actually discussing certain techniques and tools which can be helpful to
minimize bugs in Web Application and achieve reliability and efficiency to a certain level. Indeed, for
bettering the quality of Web Application, Testing may not be considered as the only effective method
because no one can certify that a system is bug-free. This paper presents some essential web testing
techniques, strategies, methods and tools which need to be focused on when performing Web Testing for
several web applications in order to achieve better results.
SolarWinds Application Performance End User Survey (Australia)SolarWinds
The proliferation of BYOD, cloud, SaaS and consumer technologies in the workplace have made the application the disruptive technology that will drive business IT into the coming decades. At the same time, the application delivery chain is becoming more complex to support as applications become more networked, virtualization drives IT infrastructure convergence and abstraction and end users become more mobile. These survey findings highlight the impact of application performance and availability on business end users, and their experiences with and expectations of IT when problems arise. Chief among the findings is that while the application is now the heart of businesses of all sizes and its performance is the lifeblood of success, IT continues to struggle to ensure its performance and availability.
SolarWinds Application Performance End User Survey (Denmark)SolarWinds
The proliferation of BYOD, cloud, SaaS and consumer technologies in the workplace have made the application the disruptive technology that will drive business IT into the coming decades. At the same time, the application delivery chain is becoming more complex to support as applications become more networked, virtualization drives IT infrastructure convergence and abstraction and end users become more mobile. These survey findings highlight the impact of application performance and availability on business end users, and their experiences with and expectations of IT when problems arise. Chief among the findings is that while the application is now the heart of businesses of all sizes and its performance is the lifeblood of success, IT continues to struggle to ensure its performance and availability.
Fundamentals of testing - Testing & Implementationsyogi syafrialdi
As we go through this section, watch for the Syllabus terms bug, defect, error, failure, fault, mistake, quality, risk, software, testing and exhaustive testing. You'll find these terms defined in the glossary.
This presentation from CleanSoft Academy helps graduates to make a career choice in the discipline of software testing. A must read for all those graduates who are not sure what career to pursue after graduation.
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.
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Mobile Testing Services Challenges
#1 Communication Issues
#2 Compatibility Issues
#3 Not Knowing when to Stop Testing
#4 Undefined Quality Standards
#5 Lack of Traceability between requirements and Test Cases
Browse official website https://www.crestechsoftware.com/
UNIT-I
Review of Software Engineering: Overview of software evolution, SDLC, Testing Process, Terminologies in
Testing: Error, Fault, Failure, Verification, Validation, Difference between Verification and Validation,
Test Cases, Testing Suite, Test Oracles, Impracticality of Testing All data; Impracticality of testing All
Paths. Verification: Verification methods, SRS verification, Source code reviews, User documentation
verification, and Software project audit, Tailoring Software Quality Assurance Program by Reviews,
Walkthrough, Inspection, and Configuration Audits.
UNIT–II (8)
Functional Testing: Boundary Value Analysis, Equivalence Class Testing, Decision Table Based Testing, Cause
Effect Graphing Technique. Structural Testing: Control flow testing, Path testing, Independent paths, Generation
of graph from program, Identification of independent paths, Cyclomatic Complexity, Data Flow Testing,
Mutation Testing.
UNIT-III (8)
Regression Testing: What is Regression Testing? Regression Test cases selection, reducing the number of test
cases, Code coverage prioritization technique. Reducing the number of test cases: Prioritization guidelines,
Priority category, Scheme, Risk Analysis.
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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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.
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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.
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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!
1. Testing, QA, and QC
Introduction to Testing, QA, and QC
1
Discovering the unexpected is more important than confirming the known.
2. What is Testing?
Testing is the process of identifying defects, where a defect is any
variance between actual and expected results.
Testing should intentionally attempt to make things go wrong to
determine if things happen when they shouldn't or things don't happen
when they should. It is oriented to 'detection'.
2
Discovering the unexpected is more important than confirming the known.
3. What is Software Testing?
Software testing is a process used to identify the correctness,
completeness, and quality of developed computer software. It includes
a set of activities conducted with the intent of finding errors in software
so that it could be corrected before the product is released to the end
users.
In simple words, software testing is an activity to check whether the
actual results match the expected results and to ensure that the software
system is defect free.
3
Discovering the unexpected is more important than confirming the known.
4. Why Software Testing?
To get adequate trust and confidence on the product.
To meet the Organizational Goals like meeting requirements, satisfied
customers, improved market share, zero defects, etc
Since the software can perform 100000 correct operations per second, it
has the same ability to perform 100000 wrong operations per second, if
not tested properly.
Testing is important because software bugs could be expensive or even
dangerous (See examples in the next slides.).
4
Discovering the unexpected is more important than confirming the known.
5. What is Quality Assurance (QA)?
Quality means consistently meeting user requirements in terms of cost,
delivery, schedule and service.
Quality Assurance involves the entire software development process.
Process is monitoring and improving the process, making sure that any
agreed-upon standards and procedures are followed, and ensuring that
problems are found and dealt with.
QA ensures that all parties concerned with the project adhere to the
process and procedures, standards and templates, and test readiness
reviews.
QA focus early in life cycle.
It is oriented to ‘prevention’.
5
Discovering the unexpected is more important than confirming the known.
6. What is Quality Control (QC)?
QC is a process by which entities review the quality of all factors
involved in production. This process places an emphases on 3 aspects
Elements such as job management, defined and well managed
processes, performance and integrity criteria etc.
Competence such as knowledge, skills, experience, and qualifications
etc.
Soft elements such as confidence, organization culture, motivation,
team spirit, and quality relationships etc.
QC ensures that the products or services that are provided to meet
specific requirements and characteristics, such as being dependable,
satisfactory, and safe.
6
Discovering the unexpected is more important than confirming the known.
7. QA versus QC
QA
QC
A planned and systematic set of activities
necessary to provide adequate confidence that
requirements are properly established and
products or services conform to specified
requirements.
The process by which product quality is
compared with applicable standards; and
the action taken when nonconformance is
detected.
An activity that establishes and evaluates the
processes to produce the products.
An activity which verifies if the product
meets pre-defined standards.
Helps establish process.
Helps implement the process.
Identifies weaknesses in processes and improves
them. Identifies defects for the primary purpose of
correcting defects.
Identifies defects for the primary purpose
of correcting defects.
QA is the responsibility of the entire team.
QC is the responsibility of the tester.
Prevents the introduction of issues or defects.
Detects, reports and corrects defects.
QA improves the process that is applied to multiple
products that will ever be produced by a process.
QC improves the development of a
specific product or service.
QA personnel should not perform quality control
unless doing it to validate quality control is
working.
QC personnel may perform quality
assurance tasks if and when required.
7
Discovering the unexpected is more important than confirming the known.
8. Some Software Failures
In UK in June of 2012 RBS/Natwest banking payment system crashed for
several days. This failure left millions of people unable to perform
transactions like Money has not been flowing into accounts after being
deposited, payrolls have been delayed, credit ratings downgraded, utility bills
not being met.
It’s the worst computer system outage the UK financial system has ever seen.
In Asia in July of 2011 reported that software bugs in a national
computerized testing and grading system resulted in incorrect test results for
tens of thousands of high school students. The national education ministry had
to reissue grade reports to nearly 2 million students nationwide.
A smart phone online banking application was reported in July 2010 to have
a security bug affecting more than 100,000 customers. Users were able to
upgrade to a newer software version that fixed the problem.
8
Discovering the unexpected is more important than confirming the known.
9. Some Software Failures
It was reported in August 2009 that a large suburban school district
introduced a new computer system that was 'plagued with bugs' and
resulted in many students starting the school year without schedules or
with incorrect schedules, and many problems with grades. Upset students
and parents started a social networking site for sharing complaints.
Software system problems at a large health insurance company in
August 2008 were the cause of a privacy breach of personal health
information for several hundred thousand customers, according to news
reports. It was claimed that the problem was due to software that 'was not
comprehensively tested'.
9
Discovering the unexpected is more important than confirming the known.
10. Some Software Failures
Tens of thousands of medical devices were recalled in March of 2007
to correct a software bug. According to news reports, the software
would not reliably indicate when available power to the device was too
low.
Etc.
All these problems and failures due to lack or ineffectiveness of
testing effort.
10
Discovering the unexpected is more important than confirming the known.
11. Successful Software Testing
It depends on how efficiently the Testing Process is integrated into
the Software Development Process.
11
Discovering the unexpected is more important than confirming the known.
12. Why does software have bugs?
Miscommunication or no communication - as to specifics of what an
application should or shouldn't do (the application's requirements).
Software complexity - the complexity of current software
applications can be difficult to comprehend for anyone without
experience in modern-day software development. Multi-tier
distributed systems, applications utilizing multiple local and remote
web services applications, data communications, enormous relational
databases, security complexities, and sheer size of applications have
all contributed to the exponential growth in software/system
complexity.
Programming Errors
12
Discovering the unexpected is more important than confirming the known.
13. Why does software have bugs?
Changing requirements (whether documented or undocumented) - the enduser may not understand the effects of changes, or may understand and
request them anyway - redesign, rescheduling of engineers, effects on other
projects, work already completed that may have to be redone or thrown out,
hardware requirements that may be affected, etc. If there are many minor
changes or any major changes, known and unknown dependencies among
parts of the project are likely to interact and cause problems, and the
complexity of coordinating changes may result in errors. Enthusiasm of
engineering staff may be affected. In some fast-changing business
environments, continuously modified requirements may be a fact of life. In
this case, management must understand the resulting risks, and QA and test
engineers must adapt and plan for continuous extensive testing to keep the
inevitable bugs from running out of control
Time pressures - scheduling of software projects is difficult at best, often
requiring a lot of guesswork. When deadlines loom and the crunch comes,
mistakes will be made.
13
Discovering the unexpected is more important than confirming the known.
14. Why does software have bugs?
Egos - people prefer to say things like:
•
No problem
•
It’s a piece of cake
•
I can whip that out in a few hours
•
It should be easy to update that old code
instead of:
•
That adds a lot of complexity and we could end up making a lot of mistakes
•
We have no idea if we can do that; we'll wing it'
•
I can't estimate how long it will take, until I take a close look at it
•
We can't figure out what that old spaghetti code did in the first
place' If there are too many unrealistic 'no problem's', the result
is bugs.
14
Discovering the unexpected is more important than confirming the known.
15. Why does software have bugs?
Poorly documented code - it's tough to maintain and modify code that is
badly written or poorly documented; the result is bugs. In many
organizations management provides no incentive for programmers to
document their code or write clear, understandable, maintainable code. In
fact, it's usually the opposite: they get points mostly for quickly turning out
code, and there's job security if nobody else can understand it ('if it was
hard to write, it should be hard to read').
Software development tools - visual tools, class libraries, compilers,
scripting tools, etc. often introduce their own bugs or are poorly
documented, resulting in added bugs.
Etc.
15
Discovering the unexpected is more important than confirming the known.
16. Approaches to Software Testing
There are different approaches to software testing.
• White Box and Black Box Testing
• Dynamic and Static testing
• Manual and Automated Testing
• Verification and validation Techniques
White Box Testing: This testing that takes into account the internal mechanism
of a system or component.
Example: Unit Testing
Black Box Testing: This testing that tests the functionality of an application as
opposed to its internal structures or workings.
Example: Functional Testing
Static Testing: In this testing software code will be examined without being
executed
Example: Code Inspections, Reviews, Walk-through etc.
Discovering the unexpected is more important than confirming the known.
16
17. Reviews and Walkthrough
Walk-through: It will be conducted informal, usually conducted by the
members of the group which will include the author. It’s main purpose is
understanding. Usually, little or no preparation is required.
Example: Improving Programming Logic, Design approach, Test case steps,
Test scenarios etc.
Reviews: It is similar to Walk-through, conducted formal by a group of
persons (author need not be one among them) look for errors, mistaken
assumptions, lack of clarity and deviation from standard practice. It’s main
purpose is decision making.
Example: Review of Business Requirements, Test Plans, Process Improve
documents, Project Plans etc. and make go or no go decisions.
Inspection: A formal individual and group checking using standards as per
defined rules and procedures. It’s main purpose is find defects.
Example: Inspect Organization policies, User manuals & procedures etc.
17
Discovering the unexpected is more important than confirming the known.
18. Approaches to Software Testing
Dynamic Testing: In this testing software code will be executed and tested without
necessarily being examined.
Example: Black Box testing
Manual Testing:
Manual testing is the process of manually testing software for defects. It requires
Testers manually execute test cases without using any automation tools.
Automation Testing:
Automation Testing means using an automation tool to execute your test case
suite. The automation software can also enter test data into the System Under
Test , compare expected and actual results and generate detailed test reports.
18
Discovering the unexpected is more important than confirming the known.
19. Approaches to Software Testing
Verification: It is a process of determining whether output of one phase of
development conforms to its previous phase.
It is a set of activities carried out to check whether we are ‘building the system
right’.
Verification is concerned with phase containment of errors
Example: Set of white box testing activities.
Validation: It is a process of determining whether a fully developed system
conforms to its Software Requirement Specification (SRS) document.
It is a set activities carried out to check whether we are ‘building the right system’.
Validation is concerned about the final product to be error free.
Example: Set of black box testing activities.
19
Discovering the unexpected is more important than confirming the known.