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List of Best Software Integration Testing Companies

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Integration Testing vs. Regression Testing: Key Differences

FeatureIntegration TestingRegression Testing
DefinitionVerifies that multiple individual software components or modules function correctly together and exchange data as expected.Determines if recent changes (like bug fixes or new features) have introduced unintended errors or regressions in existing functionalities.
FocusInteroperability and communication between componentsOverall functionality and behavior of the system after changes.
TimingUsually conducted after unit testing and before system testing.Performed after any significant change to the codebase before deployment.
Test casesDesigned to test data flow, interactions, and communication between modules.Focused on existing functionalities and scenarios that changes might impact.
Tools usedMocking frameworks, integration testing frameworks.Automated testing frameworks and regression testing tools.
OutcomeEnsures modules work together seamlessly and exchange data correctly.Identifies regressions caused by changes and ensures existing functionality remains intact.
ExampleTesting if an order processing system interacts correctly with the inventory management and payment gateway modules.Testing if a new login feature doesn't affect existing user functionalities.
AutomationCan be partially or fully automated using integration testing tools and frameworks to streamline the testing process.Often automated to facilitate frequent and efficient testing of existing functionality across multiple scenarios.
DependenciesDependent on the availability and stability of individual components and their interfaces for successful testing.Dependent on the accuracy and completeness of the regression test suite to provide reliable results.