A lighting system comprised of a central controller, a digital communications path, and a plurality of image projection lighting devices is provided. The method further includes identifying a first set of one or more functions of the software product that are to be modified by the software product update. A gate is formed over the gate forming area that is formed with the recess and includes an insulation layer formed at an upper end portion of a side wall of the recess that is in contact with the source forming area. To maintain transparency to service users and service applications, service users are located on a first network and production servers are located on a second network.