# Variable Manager

A test case can be parameterized by test data. This example shows a login example, where different user data has to be entered into a login screen. Open a test case and open the *Variable Manager* by left-click on the button: 

<figure><img src="http://aquawiki.andagon.com/pictures/drex_variable_manager__ich_client_custom.png" alt=""><figcaption></figcaption></figure>

Here, data is specified similarly to Excel (including formulas). The rows represent the test value set, and the columns represent the test variables. You can specify the data as follows: &#x20;

<figure><img src="http://aquawiki.andagon.com/pictures/drex_variable_manager__ich_client_custom_2.png" alt=""><figcaption></figcaption></figure>

You can import and export the test data into Excel if you want to handle large amounts of data or if you want to reuse existing test data. Furthermore, you have the possibility to *Clear* the content or copy cells and rows. Following the specification, you can close the *Variable manager*. Now, open the *Step designer* in order to parameterize the test steps. You can insert your parameter *Username* by clicking on *Insert Variable* and then clicking on *Username*. The placeholder is inserted. &#x20;

<figure><img src="http://aquawiki.andagon.com/pictures/drex_variable_manager__ich_client_custom_3.png" alt=""><figcaption></figcaption></figure>

If you close the step designer, you can start the test execution. A new window opens where you can choose the value set by selecting the specific row. &#x20;

<figure><img src="http://aquawiki.andagon.com/pictures/drex_variable_manager__ich_client_custom_4.png" alt=""><figcaption></figcaption></figure>

All values are displayed in order to choose a correct value set. After entering the optional value for *Tested Version*, you can *Run* the test case. As you can see in the following screen, the value is inserted into the value placeholder. &#x20;

<figure><img src="http://aquawiki.andagon.com/pictures/drex_variable_manager__ich_client_custom_5.png" alt=""><figcaption></figcaption></figure>

If two or more test cases should share their test data, you can reuse it. To do so, open the test case that should use the data from another test case and open the variable manager. Select the test case, whose data you want to use, drag it over the variable manager and drop it here. &#x20;

<figure><img src="http://aquawiki.andagon.com/pictures/drex_variable_manager__ich_client_custom_6.png" alt=""><figcaption></figcaption></figure>

You can now use the data from the other test case in this test case. If you want to keep the variables locally in this test case, click '*Copy over*'.