Methods, systems and computer program products are provided for invariant representation of computer network information technology (IT) managed resources. A common information model for representing the managed resources is defined. An identification of a resource managed by an IT resource management point product is received. The identification includes an identification of a representation used by the point product for the resource managed by the point product. It is determined if an invariant representation for the resource managed by the point product has previously been defined under the common information model. The representation used by the point product for the resource managed by the point product is associated with the previously defined invariant representation for the resource managed by the point product when an invariant representation for resource managed by the point product has been previously defined. A new invariant representation for the resource managed by the point product is defined and associated with the new invariant representation when an invariant representation for resource managed by the point product has not been previously defined. The new invariant representation is a unique representation under the common information model.