A Power-over-Ethernet communication system dynamically provides power and data communications over a communications link. The method can also include displaying pieces of identification information of the information processing apparatuses found; and changing identification information selected from the pieces of identification information displayed in the first displaying step into identification information selected from the pieces of identification information displayed in the second displaying step. Because of the inherent stability of the NDM solutions, a weight matrix of the system equation can be provided for a given point in a time series, then reused without recalculation at subsequent points. The fourth terminal is disposed on the auxiliary portion. A packet is output as a correctly received packet when no error is detected in the packet. Method steps can include integrating information from at least one source, to obtain integrated information; mapping the integrated information to at least one application; ranking the integrated information based on the mapping and on ranking criteria from a knowledge base; and processing the integrated information, based on the ranking, to obtain processed integrated information.