Defines requirements, data elements and conformance requirements applicable to all NTCIP DMS. Contains optional and conditional clauses applicable to specific environments for which they are intended. The data elements are defined using the Simple Network Management Protocol (SNMP) object-type format as defined in RFC1212 and would typically be exchanged using one of the NTCIP-recognized Application Layers (e.g., SNMP). (Formerly TS 3.6-1997)