Design And Implementation Of Cloud Workflow Engine Based On Hadoop

As the supporting instrument for business information management, workflow management system provides an information platform for multi-cooperation between different individuals. The improving of efficiency for both companies and the clients makes workflow system an important technology for the modernization and informatization of company. The engine of cloud workflow plays a vital role in cloud workflow system, it control the running of the process. Further more, cloud computing provides a solution to improve working efficiency, lower the cost, deal with large amount of data and allocate resources dynamically, all of which contribute to companys’informatization, especially for small enterprise. Since the cloud platform with the characteristics of cheapness and performance in the future, the workflow system on the cloud platform will be widely used, which is an inevitable trend. Based on the trend and demand, this thesis will analyze a workflow engine which combined with cloud computing and design a workflow engine scheme that is based on Hadoop platform. The work is mainly about:(1) Introduced the concept and design of cloud computing, and its research as well as its application. Analysised the related core technologies of Hadoop and design principles of workflow engine. Introduced the related technology of research status.(2) Based on the analysis and research of workflow engine and Hadoop. A design scheme of cloud workflow engine based on Hadoop is proposed, and specifically describes the architecture and the function of each module.(3) According to the architecture of cloud workflow engine, the engine is designed specifically, and achieved the function of each part of the cloud workflow engine. Through the execution of a test example, the running process of the cloud workflow engine and the test results are introduced.