You can use your existing LDAP authentication infrastructure, such as Active Directory or OpenLDAP, to enable single sign-on to the Resource Manager interface. With this capability, you can use the user management tools with which you are familiar to enable your Windows users to use their Windows credentials to authenticate to the Resource Manager interface. This saves you from having to manually create user accounts and separately maintain passwords.
For those LDAP properties that are mapped, changes you make in LDAP are updated in Resource Manager. (You must clear your browser cache, or log out and back in, for properties changes to propagate immediately.)