An interconnected system switching technology is provided which maintains, when a malfunction of a power system interconnected with a power generator occurs, power supply from the power generator by disconnecting the unstable power system causing the malfunction, thereby contributing to the stabilization of the power system. One such method includes: displaying a first icon corresponding to a multi-source measurement, displaying waveforms, visually associating the first icon with at least one of the waveforms responsive to user input, and performing a multi-source measurement related to the waveforms. Said thin-film fixing layer fixes the direction of magnetization of the fixed layer. The sampling circuit samples the analog signal. 05% by weight, comprising fatty acid mixtures of.