Research Of Workflow Based On Web Service And Its Application In Subway Emergency Platform

Metro,as the city's most important public transport,Because of carrying a large number of visitors,it is essential to ensure the safe of Metro. Particularly in recent years with the construction and operation of big cities, the constant expansion, Metro need to face increasingly serious security situation, on the safety of subway operation and a higher requirement. Especially the "3 ? 29" incident in Moscow metro blast shocked the world, but also sounded our rail security alarm.The research of Metro Emergency is growing important in many countries, the Metro Emergency Command Platform is also widely carried out. Metro subway emergency departments are starting research of Metro emergency platform in Beijing, Shanghai, Guangzhou, Shenzhen and other cities in. Metro emergency platform established emergency response, improving the urban subway emergency command ability extremely important.This paper analyzes the subway emergency plans, standardizing its emergency disposal of specified extraction and refining processes, summarizes the subway emergency emergency command platform for business processes, and emergency command metro summarized characteristics of business processes and complexity of the current emergency plan is in general the text-based approach to develop and storage, there is text description of text-based plan unclear division of responsibilities and shortcomings of the implementation process of blurring, so this paper in the city emergency command system used in subway workflow technology. A "process-based model for activity network diagram" of the command process modeling processes, and proposed to interact with the chain of command of the relevant business system processes encapsulated as Web Services to make calls and control, solving the system heterogeneous, to adapt to business processes dynamic updates and other issues, so that the system by definition,make the order of execution to achieve Command Process automation, to improve subway emergency command and system efficiency.