In a system which implements a DTE policy, we define the security class and the information context of the domain, implicitly adopt the lattice model as a partner security policy, thus ensure the integrity and confidentiality of the system.

• 并在此基础上提出了一种改进的安全系统模型,该模型在实施DTE的系统中,通过对域的安全级和上下文的约定,隐式地采用格模型为其伙伴安全策略,确保了系统的完整性和保密性。