The displaying of data from a table in a manner that at least some of the rows are each represented with row visualization, and in which the positioning of the row visualization conveys information regarding column values of the row. A SIM server provides access to the SIMs, a SIM librarian catalogs the SIMs, and a SIM accounting system tracks andbills for SIM usage. Channel hopping is performed upon detecting an interruption of communication, such that a scan is performed through an array of channels selected from the plurality of channels. Thus, it is possible to maximally enhance testability with minimal overhead. Based on the shading parameter, an operating parameter of the solar energy system can be changed or maintained. A bait hook is positioned in a groove provided in a front edge wall of the bait launcher plate, with the bait and attached line arranged in a rearwardly directed half loop on the upper surface of the bait launcher support tray.