This article elaborated the common password attack technology: Gains the password from the main station, intercepts the password on the communication link, explains the password from the far-end system, and introduced the related guard measure.

The present paper aims at introducing the authors development of an emergency management system for SARS, which is based on the GIS and decision support system.

The emergency management system(EMS) based on the models is developed,which supports dynamic cross-system collaboration.

The research on urban traffic emergency management focuses on the causes, the emergency management system, emergency command decision-making and management mechanism from the emergency incidents, which influences the reliability and efficiency of the urban traffic system.

Three dimensional GIS-based preliminary study on urban disaster emergency system:taking Beijing Normal University area at Beitaipingzhuang as an example;

Monitoring and emergency system against terrorism for large water supply reservoir;

Research on multi-resource dispatch in emergency system;

After these events the government raises the high attitude to building Public Health Emergency Response System.

A forecasting and emergency response system for air pollution accidents is established in order to identify the nature and affected areas of a certain air pollution accident.

Fuzzy programming for scheduling problem in emergency systems;

In connection with the characteristics of emergency systems,a model based on minimum fee is given on the pemise of satisfying the emergency systems exigency,at the same time,a corresponding algorithm is given and proved correct theoretically.

Location problem in emergency systems often regrads “t he shortest t ime" as the objective,it may result in largely raising system s fee.