The authentication management functions of SAP NetWeaver Administrator enable you to determine what kind of authentication is required for users to access a component.
You can create custom policy configuration templates and apply them to components. You can modify the policy configurations of components directly. These policy configurations determine what login modules are in the authentication stack and any configurations that apply to that stack.
When you change the configuration options for login modules in the authentication stack of a policy configuration, the login module options apply only to the component policy configuration where the login module is used. To apply a global change, modify the login module itself.
For more information, see Managing Login Modules.
The authscheme and authscheme reference policy configuration types are only useful if you have the SAP Portal available. For more information, see Portal Authentication Infrastructure in the portal documentation.