• RSS
  • Facebook
  • Twitter

One Center for all the Testing Need. OneTestingCenter is for all, for all QA, for all Automation. Automation is easy, fun and enriching experience. Happy Learning and Happy Testing!

  • Access to All QA

    At OneTestingCenter, you find lots of books,articles,blogs and detailed guides. Everyone has access to QA. Happy Learning, Happy Testing.

  • Global Trainings

    All the QA/Auotmation trainings are available at OneTestingCenter. QA, Automation, QTP/UFT, Selenium, LoadRunner, QC/ALM, Appium...

  • Automation Learning Fun

    Technology is always evolving. Automation is always challenging. To be frank, Automation is fun, enthusiastic and enrching experience.

    What is Correlation?

    Many applications use dynamic values that change each time you use the application.
    For example, some servers assign a unique session ID for every new session. When you try to replay a recorded session, the application creates a new session ID that differs from the recorded session ID.
    LoadRunner addresses this issue through correlation.
    Correlation saves the changing values, in our case the session ID, to a parameter.
    When running the emulation, the Vuser does not use the recorded value—instead; it uses the new session ID, assigned to it by the server.

    Correlation is used when a recorded script includes a dynamic value (such as a session ID) and cannot replay. To resolve this, you make the dynamic value into a variable thereby enabling your script to replay successfully.
    For example, many applications and Web sites identify a session by the current date and time. If you try to replay a script, it will fail because the current time is different than the recorded time. Correlating the data enables you to save the dynamic data and use it throughout the scenario run.
    When a correlation is created, VuGen adds a function that extracts the dynamic value to a parameter. Appropriate occurrences of the original value are replaced with a parameter.

    Reactions:

    What is LoadRunner Correlation:

    What is Correlation?

    Many applications use dynamic values that change each time you use the application.
    For example, some servers assign a unique session ID for every new session. When you try to replay a recorded session, the application creates a new session ID that differs from the recorded session ID.
    LoadRunner addresses this issue through correlation.
    Correlation saves the changing values, in our case the session ID, to a parameter.
    When running the emulation, the Vuser does not use the recorded value—instead; it uses the new session ID, assigned to it by the server.

    Correlation is used when a recorded script includes a dynamic value (such as a session ID) and cannot replay. To resolve this, you make the dynamic value into a variable thereby enabling your script to replay successfully.
    For example, many applications and Web sites identify a session by the current date and time. If you try to replay a script, it will fail because the current time is different than the recorded time. Correlating the data enables you to save the dynamic data and use it throughout the scenario run.
    When a correlation is created, VuGen adds a function that extracts the dynamic value to a parameter. Appropriate occurrences of the original value are replaced with a parameter.