Universal Data Management Method For "Digital Ocean"

Universal data management method is a complicated combination technique on the basis of common theory. It can overcome the flexibility difficulty and the limitation of expanding the management model. Further more, the new method fulfill the request of"Digital Ocean", which are multi-format and multi-source, and makes it easy to store and management. Thus, with this new method, the efficiency of management and utilization are highly improved.Based on the research of the structural design of the project --"Planning of the Marine Data System and constructing technology with the Marine Data Warehouse"(908-03-01), a universal data management method is designed toward the goal of constructing universal data management system.(1) Design a new metadata motivated model with great flexibility and extension based on Object Relational database theory and Object Relational Mapping theory.(2) With the thought of"hierarchy frame", combine the management demand in the multi-format, multi-source data in "Digital Ocean" with the demand for building up each hierarchy, analyze the function of each level; Use the entity constructing tool and realize the function in a flexible way.(3) Regard "Data Management System" of "Digital Ocean" as demonstration, show the convenient and effective management.The characteristics of the universal management method are as follow:(1) Universality. Facilitate data management according to different demand in "Digital Ocean ".(2) Expansibility. When demand changes in the original attributes, it can be updated dynamically.(3) Flexibility. The Data Interface Layer and The Data Entity Layer are created dynamically by customers'demand.This new method will provide a strong technical support for the multi-format, multi-source data management in "Digital Ocean", and will greatly enhance the utilization of marine documentation.