Relations between a modular drilling rig and various systems (such as safety, oil, gas, water, electricity, instrumentation, communication, structures, etc.) on the platform.
Source: ISO 18647:2017, Petroleum and natural gas industries — Modular drilling rigs for offshore fixed platforms, First Edition, August 2017. Global Standards
Logical entry or exit point that provides access to the module for logical information flows.
Source: ANSI/ISA–99.00.01–2007, Security for Industrial Automation and Control Systems, Part 1: Terminology, Concepts, and Models, 29 October 2007. National Standard