A supply chain network system comprises a site data appliance (SDA) and a Universal Data Appliance Protocol (UDAP) adapter coupled with one or more data source equipments (DSE). The SDA collects specification information comprising event information from the one or more DSE. A server is coupled with the SDA in the supply chain network. In response to the server requesting the specification information, the SDA sends to the server the specification information in a Description Document. A data center (DC) is coupled with the server in the supply chain network. The DC receives the Description Document and maps the event information in the specification information with event handlers. A mapping of the event information with the event handlers is sent from the DC to the server. When an event is generated by the one or more DSE, the map is used to select an appropriate event handler to execute.