%0 Journal Article
%T An Extended Secure Data Model of Master-Slaver Structure Tables<br>一个改进的主从结构表安全数据模型
%A WANG Yan-Lei
%A MAO Yu-Guang
%A <br>王艳磊
%A 毛宇光
%J 计算机科学
%D 2006
%I 
%X By far, a secure model to realize multilevel secure database system has been mentioned in large quantities of papers and different models have different advantages. In consideration of semantic ambiguity and operational incompleteness caused by secure model of original master-slaver structure tables, a new secure model is presented to eliminate the problem mentioned above. In this model, the new conception of base tuple and data-inherit are added, polyinstantiation integrity and referential integrity are redefined, and PUPDATE operation and data-inheret integrity are introduced, which strengthen the security and unambiguous of system largely.
%K Data model
%K Multilevel security
%K Polyinstantiation
%K Data integrity
%K Data semantic<br>数据模型
%K 多级安全
%K 多实例
%K 数据完整性
%K 数据语义
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=64A12D73428C8B8DBFB978D04DFEB3C1&aid=CBC54ABA2B612D35&yid=37904DC365DD7266&vid=27746BCEEE58E9DC&iid=5D311CA918CA9A03&sid=F1177A9DF1349B63&eid=31611641D4BB139F&journal_id=1002-137X&journal_name=计算机科学&referenced_num=0&reference_num=8