A method includes obtaining a data message having data associated with a process system and mapping the data message to one of multiple classifications. The sides of each lateral surface member are respectively provided with a projection and a recess for combining the lateral surface members together, and the projection of one lateral surface member is engaged with the recess of the adjacent lateral surface member. In a preferred embodiment, substantially uniform illumination is achieved by providing an elongate light source positioned within the elongate reflector housing such that a geometric center of the light source is situated preferably spaced outwardly from the optical center of the housing, away from the inner surface of the housing. The LED chips are arranged on the base substrate so as to face one another at a vertex forming the larger interior angle in plan view. The cone has a deflection power reducing shape which is formed to have a range of length 0. The circuit-connecting material features: a curing agent capable of generating free radicals upon heating; a radical-polymerizable substance, and two or more microscopically separated phases.