The present invention displays a graphical representation of a multi-layer network having a front end layer and a back end layer. A plurality of front end units of the front end layer and a plurality of back end units of the back end layer are represented as a plurality of front end graphical objects...http://www.google.de/patents/US7739605?utm_source=gb-gplus-sharePatent US7739605 - System and/or method relating to managing a network
