A construction and implementation of distributed pollution-free agricultural products certification workflow system

For the key issue of quality and safety certification of pollution-free agricultural product, this paper mainly researches on the integration work process of pollution-free agricultural product area identification and product certification. It adopts the central distributed topology structure, constructs workflow domains of central node and distributed nodes. Applying the workflow and web services technology, it establishes semi-centralized and semi-distributed workflow management system of pollution-free agricultural product certification. This distribution represents that the active instance object distributed at two-level domains of workflow, and the execution server of workflow in the two-level domains of workflow completes the certification business mutually through the interfaces of web services. Though the application of this system in Henan Province and Ministry of Agriculture, it achieves effective management of certification information between the declaration corporation and certification institution, and implements cooperation of cross-sectoral and cross-boundary teamwork. It realizes whole process and full range electronic management for the pollution-free agricultural products certification, thus the research foreshows a good promotion prospect of application and extension.