Design And Realization Of Petrochina HSE Information System' Security Business Module Based On .NET

This paper analyzes the domestic and international businesses and the Information System of HSE. Combining with actual businesses about HSE in PETROCHINA and CNPC, this paper researched the secondary development on the Essential product and designed the FOUR-Tier architecture and finished the detailed design of HSE Information System.By analyzing the Essential Product and using .NET technology, the Web Service tier has been separated from the second tier(Business Tier) in the HSE system so that formed the Four-Tier architecture, which is: Customer application Tier; Web Service Tier; The BO Tier; Database Tier;In order to achieve code separation and enhance the maitainability of HSE system and ease the pressure of Server, some implementations of functions will be put in client, so as to realize the various requirements of the system.By researching the encapsulation of .NET that refers to the encapsulation of classes and codes in the traditional situation, the HSE system made more use of the encapsulation of the control cases and components, so that make the upper maintenance and updating become very simply.By researching XML WebService and analyzing the data interfaces of external systems, HSE system realized the integration of external systems through defining some data-interfaces and data-extraction methods, so that enhanced the work efficiency of system implementation staff.The design and implementation of Petrochina HSE Information System'Security Module filled some empty area of previous managements in Petrochina.