Design Of Security Model For Train Diagram Information System

The train diagram is a comprehensive program of railway transportation, which is the base of railway organization work .Train diagram computerization is an important measure for marketing railway transportation. With the efforts of the railway managers and researchers, in our country it has maken great progress on the research of Computer Making Train Diagram. In order to fulfill the making of the train diagram based on computer networks , the Train Diagram Information System(TDIS) will be developed.The security model of the Train Diagram Information System has been designed based on the architecture of the Train Diagram Making System which is developed by SWJTU. The author makes studies on the security technologies and the solution of the security model. This thesis is composed of 3 units as follows:Unit 1: This unit includes chapter 1 and chapter 2. The relevant concepts and security technologies are introduced. Chapter 1 mainly introduces the concepts of information system and security model, but also the architecture of the TDIS has been brought up. Chapter 2 discusses the relevant technologies for a security model.Unit 2: This unit includes chapter 3 and chapter 4. The security model has been designed by the studies on the security of the data and information system. Chapter 3 brings up the strategy to assure the data security of the TDIS. Chapter 4 gives the security model of the TDIS by the studies on security strategies of information system.Unit 3: This unit includes chapter 5. Chapter 5 gives the solution of archetype system based on the TDIS security model and discusses the development technologies.