# Configuring a Test Run

Before the harness can execute the tests in a test suite, it requires information about how your computing environment is configured. You provide the harness with this information by loading a template (`.jtm`), loading an existing configuration file (`.jti`), creating a new configuration, or changing the values in a configuration.

You can also specify configuration values from the command line when starting the harness GUI.

The quantity and scope of information required to run tests depends on the test suite. Some test suites run in diverse environments (different platforms and networks), while others run in very specific, well-defined environments. The test suite may provide a configuration interview or a template for you to use in creating a configuration for your test run. If your test suite does not provide any of these, consult the test suite documentation for directions about how you can supply the required configuration information.

This chapter contains the following topics:

- Editing a Configuration - Describes how to use the Question Mode edit a configuration.
- Editing Quick Set Values - Describes how to use the Quick Set Mode to edit the runtime values in a configuration file.
- Creating a Configuration - Describes how to create a configuration for use in running tests.
- Saving a Configuration - Describes how to save the current configuration.
- Loading a Configuration - Describes how to load an existing configuration or a template for use in running tests.
- Using Bookmarks in Configurations - Describes how to use bookmarks to simplify a configuration interview.
- Searching a Configuration - Describes how to search a configuration for characters or values.
- Working with Multiple Configurations - Describes how to use multiple configuration files to switch configurations between test runs.

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