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DAIS(数字式航空电子信息系统)是1972年美国空军提出来的,其目的是为了减小飞机航空电子设备的激增和非标准化,并使空军获得一个综合航空电子系统,还可使空军具备自己设计和选择未来航空电子系统的能力,在标准航空电子系统和接口的技术要求上,采取主动性.过去,航空电子设备系统设计的传统方法是对每个特定的飞机提供一个唯一的系统.这种方法所产生的结果是,既没有共同的硬件或软件,也没有任何兼容性,严重影响新研制的武器系统或改进/改型工作的成本和可靠性.由于需要研制新的硬件和软件,就增加了前端的设计成本.然而,最严重的影响是维修成本.飞机上的不同软件造成备件和修理,人员训练和维护问题复杂化.这些因素给航空电子设备本身带来很高的成本.
The DAIS was introduced by the U.S. Air Force in 1972 to reduce the proliferation and non-standardization of aircraft avionics and to provide the Air Force with an integrated avionics system that would allow the Air Force to have its own The ability to design and select future avionics systems and take the initiative in meeting the technical requirements of standard avionics systems and interfaces In the past, the traditional approach to avionics system design was to provide a unique system for each particular aircraft. As a result of this approach, there is neither common hardware nor software nor any compatibility, which seriously affects the cost and reliability of newly developed weapons systems or improvements / retrofits. Due to the need to develop new hardware and software, Adds to the front-end design costs, but the most serious impact is the cost of repairs, which are complicated by the different software on the aircraft that make spare parts and repairs, personnel training and maintenance issues all add up to the avionics themselves.