BSIC has selected data for inclusion, and a method of presentation that-- (1) provides preliminary data, in comparable form, about all relevant systems building products, (2) surveys within the limits imposed, the problems of compatibility between subsystem components and to identify components which are compatible with one another, (3) identifies the manufacturer's representatives whom the users will wish to contact in order to go beyond the preliminary phase for which this catalog is intended, and (4) stimulates manufacturer, architect, and engineer thinking about the problem of component compatibility and details. The four component subsystems discussed are structure, lighting-ceiling, heating-ventilating -air conditioning, and demountable-movable partitions. (TC)