You can use either the Administration Console or WLST offline commands to make configuration changes to a WebLogic Server domain. Although the config.xml file can be modified through XSLT or an XML parser application, you should instead use the Administration Console or WLST to modify a domain's configuration.
Before we delve into how to make configuration changes and how a domain handles configuration changes, it helps to review our understanding of how WebLogic Server uses what are known as management beans, or MBeans.
How a Domain Manages Changes
WebLogic Server uses two types of MBeans—runtime MBeans and configuration MBeans.
Runtime MBeans These MBeans are read-only and are designed for monitoring a domain. ...