A match condition consists of a named property to match (such as a method name, Servlet name, URI, parameter, or hostname), a comparison operator, and a matching value. For complex match conditions, you can use a regular expression (often abbreviated to just regex).

Match rules are case sensitive. Also, matching is based on subsequence pattern matching. To match a complete string instead, you need to include "^" to match the start of the string and "$" to match the end of the string in your regular expression.

In the context of business transaction matching, the pattern does not include the protocol (e.g., "http://"), host, port, or query parameters in the URL. So for example, a URI of http://www.mysite.com:8000/account/settings.html?action=update would be matched by a business transaction regular expression with only "/account/settings.html".