1. What is quality assurance?
Questions and Answers of software involves the complete software development procedure, administering and enhancing the process, assuring that any standards and processes are followed, and making sure that standards and processes are followed, and making sure that issues are found and solved. It is correlated to prevention.
2. What is the Intention of testing?
Software testing is the procedure used to assist recognizing the security, quality, completeness and corrections of the computer software that is developed.
3. What is the distinctness between testing and QA?
Testing includes working of an application or a system under restricted conditions and assessing the results. It is aimed to detection. QA of software includes, ensuring that certain standards are followed properly, and also making sure that the problems are solved properly.
4. Explain the Life Cycle of Software Development
Aspects such as working design, documentation planning, coding, document preparation, functional design, retesting, requirement analysis, initial concept, integration, testing, phase-out, updates, maintenance and others are included in it.
5. What are STLC and SDLC and other phases of both?
SDLC includes coding, testing, release, design phase, requirement phase, maintenance. STLC includes report and defect, tracking of bug, test case review, test planning, system study, performing test care, writing scripts or test care.
6. Test bed, what is it?
Test bed is an accomplished environment composed for software testing. It includes particular hardware, operating system, product configuration to be under test, network topology, system software and many other applications. The test plan for a project has to be established from the test beds.
7. What is the meaning of Test Data?
Test data runs through a computer program for testing the software. It can be used to test the compatibility with efficient controls in the software.
8. Why there are bugs in software?
No communication or miscommunication about the information of what should be done by an application or not. Programmers can make the mistakes in some cases. There are also possibilities that the end user not comprehending the effects of changes, or may request them to redesign it anyway, effects of other projects, delaying the engineers, work completed already may be have to be done again. It is not very easy to prepare the software projects at best, they often need too much of guesswork. Mistakes are bound to happen when the crisis comes and deadlines are provided.
Author Bio:
Samuel is writing about software testing, load testing, functional testing, web testing and etc based on his reading and research for a Testing Sydney company.
Showing posts with label load testing. Show all posts
Showing posts with label load testing. Show all posts
Monday, October 31, 2011
Friday, October 28, 2011
Load Testing For Web Applications
When I was doing some researches on load testing and software testing, I had found a nice articl about load testing and would like to share that article with you guys.
I am sure that this article gives more ideas about Load testing.
Load Testing For Web Applications
Given the collective impact and growing number of examples that demonstrate the rising costs associated with failures, performance problems persist and worsen according to Newport Group research. In a 1999 study on performance and scalability, businesses reported that their web applications could handle only 72% of the concurrent traffic volume originally planned.In late 2000/early 2001, businesses reported that their web applications could handle only 66% of the concurrent traffic volumes originally planned.Trends indicate that the majority of today's web applications are not meeting expectations for performance, despite the fact that the revenue derived from these web-based systems continues to increase. The ongoing use of load testing practices throughout the application life cycle serves to protect the performance and integrity of revenue generating applications and infrastructures and has become widely recognized as a critical IT function that is strategic to a solid performance achievement and maintenance strategy.
THE BUSINESS-CRITICAL DISCIPLINE OF LOAD TESTING WEB APPLICATIONS:
Building a Business Case
Web-based technologies are enabling the future of global commerce. As they work to enable new business opportunities with lower transaction costs and higher profitability potential, web-based technologies are being absorbed into the fabric of the world's largest and most successful businesses. Recent Newport Group research reveals that on average today's Global 2000 business attributes 22 percent of bottom line revenue to their web-enabled business channel and that number is expected to grow to 27 percent by the end of 2002.
Business requirements for web application load testing as a means for ongoing performance measurement and tuning have become more rigorous over the past several years. Measurements derived with tools should provide a clear understanding of where performance bottlenecks reside and aid in infrastructure and capacity planning of computing resources. Accurate and realistic load tests are the best indicator of how well any business system is able to service its customers in real-world scenarios. However, a key point for businesses to recognize is that load testing web applications doesn't guarantee success. Businesses that approach load testing haphazardly, without a plan and/or in reaction to a major business catastrophe, leveraging the practice as a one time event, rather than an ongoing process of performance measurement and improvement, will not achieve the success possible with this discipline. A solid load testing strategy must complement performance monitoring and analysis in a production environment and, in turn, production monitoring and analysis should be leveraged to improve the accuracy of load tests.
IDENTIFYING THE RIGHT SERVICE FOR THE ENTERPRISE
The most widely adopted approaches to load testing include the purchase of testing tools for in-house use and the newer, vendor-hosted load testing service approach. Both approaches will demonstrate a business ROI, however, given the substantial up-front costs involved with the purchase of tools for inhouse use, the outsourced services-based approach will provide a shorter-term ROI. Since their introduction in early 2000, load testing services have become increasingly attractive for enterprises that are faced with maximizing their existing IT resources, reducing costs and achieving ROI in the short-term. In choosing either a tool and/or an outsourced service, beware that not all are alike. It is beneficial to select tools and/or services that are intuitive enough to test the dynamic and variable nature of web-based environments.
Packaged Testing Software: Typically, testing tools sold as software packages require purchasers of the software to supply the hardware and staff necessary to run the load test software and drive tests. This approach involves up-front costs for procurement of the testing software and necessary hardware to conduct the tests, and IT resource costs to implement, develop, execute and manage the load testing process. Additional costs include annual software license fees for tool upgrades and vendor support, potential consulting and training costs and, often, the time and cost necessary to set-up a testing lab to mirror the production environment. This approach is costly, takes the longest time for a business to achieve its return on investment in comparison to other approaches, but provides complete inhouse
control and flexibility.
Vendor Hosted Services: Early in 2000, vendor hosted load testing services emerged to provide an alternative for conducting load tests for web application environments.These services leverage the Internet to conduct load tests over the wire. The pricing for load testing services is inclusive of the utilization of the provider's hardware resources for test execution. In this respect, customers pay to have load tests designed and executed against their web application infrastructure and the service vendor leverages its own technology and network of distributed hardware resources to execute tests and deliver results. This approach provides a quick return on investment and is attractive for conducting tests with high volumes of concurrent users. Traditionally, services have been thought of as less flexible than inhouse tools, however, there are a variety of different services vendors whose unique solutions can provide an equivalent level of control and flexibility. Perhaps the greatest value in leveraging services lies in the expertise of the provider as well as the capabilities of providers to execute and drive tests from outside the firewall. Designing, executing and interpreting results for widely distributed web applications is complex because environments are dynamic and impacted by constant change. There is a great deal of planning and analysis that must go into creating and executing realistic load tests for web applications and infrastructures. Load testing services are conducted by teams of experts that conduct a wide variety of load tests on a daily basis.
To combat the growing problem of poor web application performance and safeguard the rising amount of business revenue gained via online channels, load testing strategies, tools and services have experienced a transformation in terms of both awareness and adoption. The ongoing use of load testing practices throughout the application life cycle serves to protect the performance and integrity of revenue generating applications and infrastructures and has become widely recognized as a critical IT function that is strategic to a solid performance achievement and maintenance strategy.
Keynote Systems - Web load testing services. Run your scripts locally, use our free recorder, or upload scripts through the Keynote portal at any time. Run load transactions against a test web site, or production, for a complete view of performance.
Article Source: http://EzineArticles.com/?expert=Rod_Stewart
I am sure that this article gives more ideas about Load testing.
Load Testing For Web Applications
Given the collective impact and growing number of examples that demonstrate the rising costs associated with failures, performance problems persist and worsen according to Newport Group research. In a 1999 study on performance and scalability, businesses reported that their web applications could handle only 72% of the concurrent traffic volume originally planned.In late 2000/early 2001, businesses reported that their web applications could handle only 66% of the concurrent traffic volumes originally planned.Trends indicate that the majority of today's web applications are not meeting expectations for performance, despite the fact that the revenue derived from these web-based systems continues to increase. The ongoing use of load testing practices throughout the application life cycle serves to protect the performance and integrity of revenue generating applications and infrastructures and has become widely recognized as a critical IT function that is strategic to a solid performance achievement and maintenance strategy.
THE BUSINESS-CRITICAL DISCIPLINE OF LOAD TESTING WEB APPLICATIONS:
Building a Business Case
Web-based technologies are enabling the future of global commerce. As they work to enable new business opportunities with lower transaction costs and higher profitability potential, web-based technologies are being absorbed into the fabric of the world's largest and most successful businesses. Recent Newport Group research reveals that on average today's Global 2000 business attributes 22 percent of bottom line revenue to their web-enabled business channel and that number is expected to grow to 27 percent by the end of 2002.
Business requirements for web application load testing as a means for ongoing performance measurement and tuning have become more rigorous over the past several years. Measurements derived with tools should provide a clear understanding of where performance bottlenecks reside and aid in infrastructure and capacity planning of computing resources. Accurate and realistic load tests are the best indicator of how well any business system is able to service its customers in real-world scenarios. However, a key point for businesses to recognize is that load testing web applications doesn't guarantee success. Businesses that approach load testing haphazardly, without a plan and/or in reaction to a major business catastrophe, leveraging the practice as a one time event, rather than an ongoing process of performance measurement and improvement, will not achieve the success possible with this discipline. A solid load testing strategy must complement performance monitoring and analysis in a production environment and, in turn, production monitoring and analysis should be leveraged to improve the accuracy of load tests.
IDENTIFYING THE RIGHT SERVICE FOR THE ENTERPRISE
The most widely adopted approaches to load testing include the purchase of testing tools for in-house use and the newer, vendor-hosted load testing service approach. Both approaches will demonstrate a business ROI, however, given the substantial up-front costs involved with the purchase of tools for inhouse use, the outsourced services-based approach will provide a shorter-term ROI. Since their introduction in early 2000, load testing services have become increasingly attractive for enterprises that are faced with maximizing their existing IT resources, reducing costs and achieving ROI in the short-term. In choosing either a tool and/or an outsourced service, beware that not all are alike. It is beneficial to select tools and/or services that are intuitive enough to test the dynamic and variable nature of web-based environments.
Packaged Testing Software: Typically, testing tools sold as software packages require purchasers of the software to supply the hardware and staff necessary to run the load test software and drive tests. This approach involves up-front costs for procurement of the testing software and necessary hardware to conduct the tests, and IT resource costs to implement, develop, execute and manage the load testing process. Additional costs include annual software license fees for tool upgrades and vendor support, potential consulting and training costs and, often, the time and cost necessary to set-up a testing lab to mirror the production environment. This approach is costly, takes the longest time for a business to achieve its return on investment in comparison to other approaches, but provides complete inhouse
control and flexibility.
Vendor Hosted Services: Early in 2000, vendor hosted load testing services emerged to provide an alternative for conducting load tests for web application environments.These services leverage the Internet to conduct load tests over the wire. The pricing for load testing services is inclusive of the utilization of the provider's hardware resources for test execution. In this respect, customers pay to have load tests designed and executed against their web application infrastructure and the service vendor leverages its own technology and network of distributed hardware resources to execute tests and deliver results. This approach provides a quick return on investment and is attractive for conducting tests with high volumes of concurrent users. Traditionally, services have been thought of as less flexible than inhouse tools, however, there are a variety of different services vendors whose unique solutions can provide an equivalent level of control and flexibility. Perhaps the greatest value in leveraging services lies in the expertise of the provider as well as the capabilities of providers to execute and drive tests from outside the firewall. Designing, executing and interpreting results for widely distributed web applications is complex because environments are dynamic and impacted by constant change. There is a great deal of planning and analysis that must go into creating and executing realistic load tests for web applications and infrastructures. Load testing services are conducted by teams of experts that conduct a wide variety of load tests on a daily basis.
To combat the growing problem of poor web application performance and safeguard the rising amount of business revenue gained via online channels, load testing strategies, tools and services have experienced a transformation in terms of both awareness and adoption. The ongoing use of load testing practices throughout the application life cycle serves to protect the performance and integrity of revenue generating applications and infrastructures and has become widely recognized as a critical IT function that is strategic to a solid performance achievement and maintenance strategy.
Keynote Systems - Web load testing services. Run your scripts locally, use our free recorder, or upload scripts through the Keynote portal at any time. Run load transactions against a test web site, or production, for a complete view of performance.
Article Source: http://EzineArticles.com/?expert=Rod_Stewart
Tuesday, October 25, 2011
The Basics of Software Testing
The basics of software testing are the first piece of the ISEB Foundation examination and course study syllabus. ISEM suggest that students of Foundation spend 20% of their time of study on the basics of section of Fundamental course. The tile of the opening chapter is The Fundamentals of Software Testing in the official manual of ISEB software testing.
Determining the fundamentals of software testing is very important to accomplishing proficiency according to the professional standards of ISEB. But what, exactly are these basics and what do you need to understand to the examination of ISEB Foundation?
The necessity of testing: Peter Morgan, a freelancer testing practitioner and ISEB Accreditation and examination panel member says that, a needlessly high amount of IT systems are unsuccessful to fulfill expectations or fail to work, because of inadequate software testing before the release.
Software testing cannot assure against software issues, but it can reduce the dangers of faults developing when the software is working. It is important to take the causes and effect of IT systems failure, and important role played by testing in quality assurance into account, in order to understand the necessity of software testing.
The five most important learning requirements to be focused by The ISEB Foundation are:
1. The potential force of a failure of IT systems.
2. Effects and causes of software failure.
3. The necessity of software testing.
4. Fundamental terminology of industry.
Meaning of testing: It is a technique of recognizing mistakes in the product before the release, this consists faults in its execution and the software code, also any type of potential space between job of code and what it exactly does.
The examination of ISEB Software Testing foundation needs students to:
1. Understand the fundamental objectives of testing.
2. Know how these objectives implement in the context of using, supporting and creating software.
General principles of testing: The students in ISEB courses are introduced to 7 principles of software testing.
1. Testing can prove that complications exist, but they can’t show that the problems do not exist,
2. It covers a restricted category of sample conditions, and is not all inclusive.
3. When the problem is found sooner, the cost of fixing it will be less.
4. Imperfections are more likely to align around particular areas. These areas can be specifically aimed by testers.
5. A test set that run repeatedly will have abating effect.
6. The kind, pattern and concentration of testing will differ depending on the software tested.
7. A test that doesn’t show errors doesn’t prove that software is free of errors.
Author Bio:
Samuel is writing about software testing, load testing, functional testing, web testing and etc based on his reading and research for a Testing Sydney company.
Determining the fundamentals of software testing is very important to accomplishing proficiency according to the professional standards of ISEB. But what, exactly are these basics and what do you need to understand to the examination of ISEB Foundation?
The necessity of testing: Peter Morgan, a freelancer testing practitioner and ISEB Accreditation and examination panel member says that, a needlessly high amount of IT systems are unsuccessful to fulfill expectations or fail to work, because of inadequate software testing before the release.
Software testing cannot assure against software issues, but it can reduce the dangers of faults developing when the software is working. It is important to take the causes and effect of IT systems failure, and important role played by testing in quality assurance into account, in order to understand the necessity of software testing.
The five most important learning requirements to be focused by The ISEB Foundation are:
1. The potential force of a failure of IT systems.
2. Effects and causes of software failure.
3. The necessity of software testing.
4. Fundamental terminology of industry.
Meaning of testing: It is a technique of recognizing mistakes in the product before the release, this consists faults in its execution and the software code, also any type of potential space between job of code and what it exactly does.
The examination of ISEB Software Testing foundation needs students to:
1. Understand the fundamental objectives of testing.
2. Know how these objectives implement in the context of using, supporting and creating software.
General principles of testing: The students in ISEB courses are introduced to 7 principles of software testing.
1. Testing can prove that complications exist, but they can’t show that the problems do not exist,
2. It covers a restricted category of sample conditions, and is not all inclusive.
3. When the problem is found sooner, the cost of fixing it will be less.
4. Imperfections are more likely to align around particular areas. These areas can be specifically aimed by testers.
5. A test set that run repeatedly will have abating effect.
6. The kind, pattern and concentration of testing will differ depending on the software tested.
7. A test that doesn’t show errors doesn’t prove that software is free of errors.
Author Bio:
Samuel is writing about software testing, load testing, functional testing, web testing and etc based on his reading and research for a Testing Sydney company.
The Necessity of Outsourcing Your Software Testing
According to market research studies, 40% of undecided application break time is brought by failure of application or bugs, 20% by hardware and 40% by errors in application, disasters or environmental aspects. So, 80% of unexpected downtime can be eliminated by IT process improvements, complete training on operations and pre-arrangement testing. This is important, but it is not certainly the main activity of majority organizations that require it. Outsourcing the software testing process will help a company to focus on its other core activities while the software testing work is handled by the experts proficiently, making sure of quality results. The company will save time and money on the procedure that would be too annoying and pretty tiring if done internally.
Importance of Software testing: Software testing is an important step in any project of software development. Testers and developers should make sure that products that are newly developed match the performance and practical requirements and that those products are trustworthy to function constantly under each circumstance. The dangers of launching a product that is not accomplished fully are abundant now than before because of the change in demands and assumptions of the end consumers.
A consistent approach to quality, started early in the lifecycle of software, can reduce the cost of accomplishing and maintaining the software considerably. This largely minimizes the risk related with arranging low quality software.
The important improvements that come along with aligning software testing and accent the normally mentioned reasons are as follows:
1. Save money and time by recognizing defects sooner.
2. Reduce and avoid downtime of development
3. Give better customer service by developing a better application
4. Understand the requirements of users and satisfy them
5. Construct a desired modifications list and improvements for later version.
6. Recognize areas where developers and programmers require training.
7. Recognize areas where developers and programmers require training
Software testing process stages
1. Providers concentrate mainly on quality of product, which is determined through the below mentioned basic practices:
1. Find defects of software quality in documents.
2. Suggest on the noticed quality of software.
3. Prove and authorize the assumptions made in pattern and requirement features through strong demonstration.
4. Authorize that the products works according to the design.
5. Authorize that the requirements are applied properly.
Author Bio:
Samuel is writing about software testing, load testing, functional testing, web testing and etc based on his reading and research for a Testing Sydney company.
Importance of Software testing: Software testing is an important step in any project of software development. Testers and developers should make sure that products that are newly developed match the performance and practical requirements and that those products are trustworthy to function constantly under each circumstance. The dangers of launching a product that is not accomplished fully are abundant now than before because of the change in demands and assumptions of the end consumers.
A consistent approach to quality, started early in the lifecycle of software, can reduce the cost of accomplishing and maintaining the software considerably. This largely minimizes the risk related with arranging low quality software.
The important improvements that come along with aligning software testing and accent the normally mentioned reasons are as follows:
1. Save money and time by recognizing defects sooner.
2. Reduce and avoid downtime of development
3. Give better customer service by developing a better application
4. Understand the requirements of users and satisfy them
5. Construct a desired modifications list and improvements for later version.
6. Recognize areas where developers and programmers require training.
7. Recognize areas where developers and programmers require training
Software testing process stages
1. Providers concentrate mainly on quality of product, which is determined through the below mentioned basic practices:
1. Find defects of software quality in documents.
2. Suggest on the noticed quality of software.
3. Prove and authorize the assumptions made in pattern and requirement features through strong demonstration.
4. Authorize that the products works according to the design.
5. Authorize that the requirements are applied properly.
Author Bio:
Samuel is writing about software testing, load testing, functional testing, web testing and etc based on his reading and research for a Testing Sydney company.
How to Chose a Software Testing Company
A software tester is the main area to concentrate while determining a company for software testing. There are two most well-known certifications these days and they are ISTQB and ISEB. Try and make sure that the testers that you chose have these certifications at base level. Another important factor related to software testers is their level of experience. Lot of software testing companies claim that their testers have I.T experience of five years, that means they have these five years of experience anywhere in Information Technology field. While choosing the software testing company, you should ask them about the actual years of professional software testing experience.
Most companies that test software offer a large range of services related to software testing. You should be very cautious while hiring them, as most of them will promote their services but it is not necessary them all of them have the proficiency or skill to do that. There are various types of software testing service that should be offered by professional companies and two of them are as follows:
Functional Testing: Usual products related to software these days include huge amounts of important functionality and difficult features, functional testing becomes most important in development of any software when added to the most important time stresses to have the product launched. Manual functional testing methods of a software tester have been shown to be very efficient at actually deciding whether the functionality actually works or not. Flexible software testers can operate from their own test cases or utilize any already existing test cases. Good software testers effortlessly make use of ad-hoc methods while accomplishing any tests to increase the coverage of test. The main intention at the time of occupational testing is to focus any issues as soon as possible so it can be clarified by the developers. This can of course efficiently minimize the development costs to the company.
Creation of Test Case: This is a famous service that normally involves making elaborated test cases, these cases can be used not only project under test, but also because of their high quality can be used again on upcoming projects and shape a good quality asset of test documentation. Reputed testers will gather all the necessary information to generate the test cases, normally from design documentation, developer interview and other needs. When the information has been observed, software tester will make a cultured spreadsheet of excel which consists of version details, test cases, environment setup and result sheets. In each stage of development of test cases clients are involved in the form of a process of test case review.
Author Bio:
Samuel is writing about software testing, load testing, functional testing, web testing and etc based on his reading and research for a Testing Sydney company.
Most companies that test software offer a large range of services related to software testing. You should be very cautious while hiring them, as most of them will promote their services but it is not necessary them all of them have the proficiency or skill to do that. There are various types of software testing service that should be offered by professional companies and two of them are as follows:
Functional Testing: Usual products related to software these days include huge amounts of important functionality and difficult features, functional testing becomes most important in development of any software when added to the most important time stresses to have the product launched. Manual functional testing methods of a software tester have been shown to be very efficient at actually deciding whether the functionality actually works or not. Flexible software testers can operate from their own test cases or utilize any already existing test cases. Good software testers effortlessly make use of ad-hoc methods while accomplishing any tests to increase the coverage of test. The main intention at the time of occupational testing is to focus any issues as soon as possible so it can be clarified by the developers. This can of course efficiently minimize the development costs to the company.
Creation of Test Case: This is a famous service that normally involves making elaborated test cases, these cases can be used not only project under test, but also because of their high quality can be used again on upcoming projects and shape a good quality asset of test documentation. Reputed testers will gather all the necessary information to generate the test cases, normally from design documentation, developer interview and other needs. When the information has been observed, software tester will make a cultured spreadsheet of excel which consists of version details, test cases, environment setup and result sheets. In each stage of development of test cases clients are involved in the form of a process of test case review.
Author Bio:
Samuel is writing about software testing, load testing, functional testing, web testing and etc based on his reading and research for a Testing Sydney company.
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