![]() What is regression testing? Regression Testing Strategy. Software Quality Assurance. Software Testing Resources: Testing Methodology and Techniques, This site.Methods of visual acuity testing in preverbal children. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. If you continue browsing the site, you agree to the use of cookies on this website. See our User Agreement and Privacy Policy. If you continue browsing the site, you agree to the use of cookies on this website. See our Privacy Policy and User Agreement for details. ![]() Careers at Cigniti built on passion and commitment to excellence in Software Testing and other fields with an aim to nurture innovation and learning. ![]() ![]() Regression Testing Strategy. How to choose a regression testing strategy. What is regression testing? In this article I will try to summarize my research and experience in choosing a strategy and running regression testing suites. In this article I will try to summarize my research and experience in choosing a strategy and running regression testing suites. If SDLC is an iterative development, inserting regression testing into the schedule during the second iteration without any additional resources already becomes a problem (my assumption is that the number of test cases may be doubled from the first iteration to the second). From my point of view the second iteration is not the right time to automate regression testing. I will not discuss any automation aspects of regression testing in this article. To survive, you have to automate regression testing after developing and stabilizing the application anyway. If you have reached 8. TC (test cases) by automation (that is an excellent result - most automation gives 5. TC coverage from my own experience) you will still need to run the rest of the TC manually. Even automated tool providers expect the manual TC. So let us assume that we need to run a set of TC manually. The set of TC is growing dramatically during the SDLC process of development. Methods of visual acuity testing in preverbal children 1. METHODS OF VISUAL ACUITYTESTING IN PREVERBAL CHILDREN Presented by. So you can't allocate time and resources to run all existing TC every time you make any changes in the application. To maintain and deliver good software to the client, you must define a proper strategy for regression testing that matches your goals and targets from the beginning. If you have a test case, you must run it. The number of TC for every non- trivial software system aspires to infinity. Some test cases are more important than others. This is not safety- critical software. Software regression testing - testing that is performed after making a functional improvement or repair to the program. List of 10 most popular functional or regression web testing tools. Testing tools help you test you web application with ease. These tools can be used to test. Learn 5 methods and tools tips for getting the software testing done at the end of a Scrum sprint that are useful even if you don't use an agile project management. Comprehensive list of widely used performance testing tools and load testing tools for measuring web application performance and load stress capacity. Testing is potentially an obstacle to agile software deployment. The smallest change in your code could require the whole application to be retested. Table 2 lists tools that to my knowledge do not exist yet, at least at the time of this writing, that are needed to support the Agile Data method. Today, in this tutorial we have tried to list almost all popular web application testing tools which are useful to find issues present in any web application. Candidates who earn this credential will have earned a passing score on the SAS Statistical Business Analysis Using SAS 9: Regression and Modeling exam. Its purpose is to determine if the change has regressed other aspects of the program . Software Regression Testing - any repetition of tests (usually after software or data change) intended to show that the software's behavior is unchanged except insofar as required by change to the software or data. Software Regression Testing - testing conducted for the purpose of evaluating whether or not a change to the system (all CM items) has introduced a new failure. Regression testing is often accomplished through the construction, execution and analysis of product and system tests. It can be difficult to determine how much re- testing is needed, especially near the end of the development cycle. Automated testing tools can be especially useful for this type of testing. Software Regression testing - rerunning test cases, which a program has previously executed, correctly in order to detect errors spawned by changes or corrections made during software development and maintenance. Software Regression testing - selective retesting of system or component to verify that modifications have not caused unintended effects and that system still complies with its specified requirements. Rerun all existing test cases. Simple but impossible in the time that we have in our everyday practice. Retest Risky Use Cases. Here we are speaking about RUP (Rational Unified Process development activities) for details see: http: //www. Choose baseline tests to rerun by allocating time in proportion to operational profile. Retest Changed Segment. Choose baseline tests to rerun by comparing code changes (White Box Software regression testing strategy). Retest within Firewall. Choose baseline tests to rerun by analyzing dependencies (White box regression testing strategy). Apply hierarchical increment testing (HIT) (close to Retest within Firewall). Apply Black Box Monkey Testing - . If you are interested in details please refer to Binder and Mc. Gregor books. I am trying to use the KISS law (keep it stupid simple) and think that when you need to choose something and it depends on your or somebody else's opinion - mistakes can take place. In my regression testing strategy, I am trying to minimize all human factors in common. Suggested strategy for software regression testing. In my practice, I simply combine three different popular strategies. Rerun the TC that have a high- risk or their failure results would affect the system from the business perspectives. Run a continuous cycle - regression testing (run remaining test cases until you finish the cycle). Use Exploratory Testing or any other types of testing to keep your test cases updated. First of all my meaning of risky - from the business point of view. As components for defining priority I use business risk and frequency of using this scenario by the customer. The easiest way to define two levels (high and normal) is to add two columns in a test log or other document, you use and sort you TC (do not forget to rerun all of these test cases every iteration and exclude them from running as all test suites. Anyway, you will have some redundancy.). Yes - sometimes it is difficult to choose risky TC after different changes/fixes in the system. Continuous cycle regression testing for running existent test suite- 5. Rerun all existing test cases until you finish them. It can take the duration of the two or even three iterations. You will begin the next continuous cycle of testing after finishing the first). Do not forget to properly document the results of exploratory testing. As a minimum - update the test log. If you do not like the sound of 'exploratory testing', use the time in the schedule to improve your understanding of the requirements, the system and your logical and architectural coverage of application by TC. You must allocate time and resources for this task anyway). You can play this around, as you like. Most importantly, all your existing TC will run, you will have the priority for running test cases and you will allocate time for keeping your TC suit under continuous improvement. Begin from ideas you like the best and go ahead. Pay attention to the fact that it is an old and proven technique. The OAT was introduced for the first time by Plackett and Burman in 1. Taguchi . Testers using this approach concentrate on a data model and generation. Be sure to have all your existing TC run in some period of time (not necessarily in every delivery). Try to manage risky test cases. Always spend some time to improve you test case suite. Canada: Addison- Wesley, 2. October, 1. 99. 9) Addison- Wesley Pub Co. Myers 1. 97. 9. 5. Software testing techniques by Boris Beizer, 1. Online Papers About Model- Based Testing http: //www. Arnold, 1. 99. 8. Orthogonal Arrays and Linear Graphs by G. ANSI/IEEE standard 6.
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