随着中国造船企业信息化建设的迅速发展，各造船企业通过自身的开发或外部引进拥有了各种各样的CAX系统，通过这些信息化系统的使用，使得我国在数字化造船领域取得了长足的进步。但在船舶设计制造过程中，造船企业往往根据不同生产阶段的不同要求选用不同的CAX系统。由于这些异构的CAX系统是由不同厂商、在不同系统上、不同平台上开发完成，因此它们彼此之间很难实现信息共享与交换，形成了大量的信息"孤岛"。通过构建数字化造船一体化数据平台，采用基于STEP产品数据交换标准的船舶数据交换技术来实现数字化造船领域异构CAX系统的系统集成，以达到消除"信息孤岛"，实现数字化造船生产、管理和应用一体化的目的，不断提高我国造船行业的设计、制造和管理水平，提高造船质量，缩短造船周期，提升企业的市场竞争力。

With the rapid development of informationization construction in Chinese shipbuilding enterprises, many of them have various CAX systems through their own development or external introduction. Digital shipbuilding in China has been made considerable progress through the usage of the informationization system. However, in the process of ship design and manufacture, shipbuilding enterprises always choose different CAX systems in various production stages according to different requirements. The heterogeneous CAX systems are constructed in different platforms by different manufacturers for different system. Therefore, it is hard to realize information sharing and exchange between each other, which leads to a large amount of information island. Through constructing data platform of digital shipbuilding integration, the research eliminate the information island. The methods realize system integration of heterogeneous CAX systems in digital shipbuilding based on ship data exchange technology of STEP product data exchange standards. In order to fulfill the integration of digital shipbuilding manufacture, management and application，the research will constantly improve the level of our shipbuilding industry design, manufacturing and management, improve shipbuilding quality, shorten the shipbuilding period, and promote competitiveness of enterprise.