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The selection of test cases for regression testing:
- Requires knowledge on the bug fixes and how it affect the system
- Includes the area of frequent defects
- Includes the area which has undergone many/recent code changes
- Includes the area which is highly visible to the users
- Includes the core features of the product which are mandatory requirements of the customer
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http://www.onestopsoftwaretesting.com/2009/10/selecting-test-cases-for-regression.html
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How do you do regression testing and can we give one example on that in the same application?
regression testing is normally a set of automated scripts written by the test/automation team to test all previously existing functionality to make sure nothing has been broken.
What is the purpose of regression testing in software development?
Regression is the re-test of the existing features of your softwares. Criterias: -If one of the requirements is enhanced or changed or modified then the affected other software modules should also be tested as regression test. -If the already released software modules are having issues at end customer side and they have reported bugs in them...Then you will come to know the most affected module and can perform regression test in next release.
What is a select case statement used for in programming?
In programming, select case statement is a way to test the inside of a variable. It is used when one knows there is a limited number of things that can be in the variable.
What is comparison testing in software engineering?
Comparison Testing: Test Cases results are compared with the predicted results of the Test Oracle (Test Oracle: a mechanism to produce the predicted outcomes to compare with the actual outcomes of the software under test [from BS7925-1]) It's a bit of an old fashioned term, in that predicted results are usually included in the test case script. A test matrix with expected result values could be called a test oracle, or a predictive spreadsheet could fulfill that function. Note: Software Testing has developed many redundant/overlapping terminologies over the last decade. e.g. Black Box Testing aka Behavioral Testing aka Functional Testing Don't get too hung up with the terminology, as it varies from organization to organization.
What is p value in regression analysis?
The p value is NOT a probability but a likelihood. It tells you the likelihood that the coefficient of a variable in regression is non zero. The p-value is: The probability of observing the calculated value of the test statistic if the null hypothesis is true
