Building The Enterprise Management System Based On INTERNET

With the advent of computer and internet information technology era, the application of the computer network acts as a more and more important role in science, education, industry, commerce and our daily work and life etc.. As software engineers, it is our irrefutable responsibility that how to design or develop more and better software of network application making good use of the advanced theory and technique about software developement in the modern world. Moreover, with the information resource broadcasted widly in internet, it is inevitable that our computers and networks are attacked evilly by all sorts of computer' s viruses and attackers. All these will lead to the question of security in our information network. How to prevent our enterprise' s network from invading invalidly and accessing without authority or destruction, and how to assure that the important and sensitive datum of our enterprise not to be stolen, not to be copied and used invalidly, and to keep invaders out of the network' s door, and how to prevent our network from being invade by the viruses, traps and so on. All of these questions are ones that our enterprise are facing to be solved rapidly in e-generation.In this thesis, all these procedures, tables and the relations of these tables of Chengdu Nymphgroup' s sale-management are analyzed systematically: the process of customers' orders and invoices, cashier' s confirmation, the process of merchandise' s distribution and delivery, the process of merchandise' s in or out of the storehouse and so on.We have set up a book of entire requirements and analyses.Moreover.we have done the detail logical design and physical implementation in base of these requirements and analyses.In this thesis, the real questions and relative methods as to theprocedure of installing and configuring ORACLE server or client are expatiated.This thesis has also expatiated on the question of the network security and relative solution.However, following the depth of ORACLE' s application, and following the increment of the datum, the question about the database' s security is an important one to DBA in his daily works. Here the invalid or transgress ion of access, modification and removal to the invalid users or corresponding users are refused by the management to the database users, the management to the objects or corresponding autority, the management to the synonym of the objects and so on. The system of database perhaps be abnormal because of the failure of software or hardware. In order to guarantee that the ORACEL database has a higher steadibility and security, the strategy of backup and restoration to database has been set up by physical or logical backup and corresponding restoration in this thesis.