1. A resource management method based on management policies, each management policy comprising an indication of a management activity and at least one of the management policies comprising an indication of an application condition, wherein the method comprises steps of: deploying a set of operative management policies assigned to each one of a set of target computing machines onto a target computing machine to cause the target computing machine to verify the application condition of each assigned operative management policy according to status information available on the target computing machine and to apply each assigned operative management policy with no application condition or having the application condition being satisfied by executing the corresponding management activity; receiving an indication of an application outcome of each applied operative management policy; creating a set of service management policies each one for at least one of the applied operative management policies according to the corresponding application outcome, the management activity of each service management policy being configured to update the status information of the target computing machine, wherein the service management policy is applied according to the application outcome of the corresponding at least one applied operative management policy; and deploying a set of the service management policies assigned to each one of a set of selected target computing machines onto the selected target computing machine to cause the selected target computing machine to apply each assigned service management policy by executing the corresponding management activity.