This document discusses system integration for a smart paperless ship. It proposes a conceptual design architecture that could prototype a smart ship using paperless technology. The design focuses on building a complete macro control system integration between on-board computers, software, hardware, electrical, mechanical and other systems. This would include a wireless computer network and sensor gateway. The system aims to benefit the environment by reducing paper usage and facilitate activities like loading/unloading cargo and maintenance through connectivity both on the ship and between the ship and shore operations. Potential benefits mentioned include cost reductions, improved efficiency, increased safety and reduced environmental impact.