For example, you can extract a value from an incoming request and use it to populate an element of the response to be sent when that request is received. You can configure XML Data Banks automatically when using wizards to create virtual assets from traffic. In addition, you can use the "Use Data Source Wizard" to extract a value and use it as a parameterized value in a response. For Message Responders, you can extract values from the incoming request (body or header); for other tools (e.g., tools used in action suites), you can extract values from another tool in the suite. Another option is to manually add an XML Data Bank tool (as an output to an existing tool) that extracts the desired data, then configure other tools to use the extracted data.