A method, apparatus, and computer instructions for managing a set of IO subsystems. The cloud server receives a barcode corresponding to a product from the electronic device and searches a location of the product in a shopping mall. The framework has facilities for result analysis, comparison of key performance indicators with predefined target values, and test management. The reflector accommodates the post-manufacture installation of a number of reflective throw pattern adjustment members to provide first and second configurable throw patterns having subtended angles with the same or different values. Adjustment of the light distribution pattern can be facilitated due to tonal difference between the horizontal cut-off line of the driving lane and the oncoming lane.