"Multi-S" combination and integration in Information Analysis and Management System on Hydrology and Sediment of the Yangtze River
Xiong Ming · Yangtze River · 2006
Information of hydrology and sediment has characteristics of multi-source,multi-sort,multi-quantity,multi-dimension,multi-time-domain,and multi-subject.The development of the hydrology and sediment information analysis and management system makes use of technologies of combination and integration.The large integration system is a comprehensive technology system with distributive subject database(including attribute database and space database) as a core.The functional structure is a laminated composite structure of technologic methods and applied model.The application of state standards,industrial codes,data grid technology and applied tools in this system is the prerequisite condition to ensuring the multi-source and different-structure data to smoothly transform and exchange.Adopting the object-oriented language and establishing the concept model and mathematical model of multi-S data integration management and automatically taking semantic and non-semantic information has solved difficult technical problems on automatic data update,real-time data communication and data analysis visualization etc.,and basically realized the operational integration.This system generally adopts a design mode of combinating C/S with B/S and introduces a 3-layer mapping mode of applied system layer,middle service layer and database layer.