Abstract: This paper analyzes the fundamental architecture of DDS Communicaiton Middleware and the technological traits of DDS's application in shipboard system. For the current research on information security of DDS, this paper proposes the information security of DDS communication for the first time. According to the feature of information system and the similarity between security domain and DDS domain, it develops the division strategy of DDS security domain.On the base of similar control of communication between information security strategy and QoS strategy, it puts forward the QoS stragety configuration of information attribute-information strategy-QoS strategy. Finally, this paper illustrates the feasibility of the method using an living example.

Key words: data distribution service, shipboard system, security domain, security strategy, QoS strategy