Design And Implementation Of A Web-Based Agricultural Information Management System

Development of agricultural information management system is the basic project of agricultural informatization and modernization. Based on synthesizing the theory and methodology of agronomy, ecology, statistics and computer science, the multimedia agricultural information database including spatial data, attribute data, photograph data and net resource data was developed by widely collecting, and further standardizing and normalizing agricultural resource data, special data(variety data, soil data, atmospheric data, and country economic information), and internet agricultural information. Furthermore, the browser/server mode & web-based agricultural information management system with the functions of information collection, query, analysis, calculation, prediction, and maintenance was developed. This research would help make the management of agricultural database systematic, standardized and intelligent.First, to ensure the data unique and convenient for share purpose, the united criteria and norm were established among different types of agricultural resource data. The data structure type was built for the photograph data, the international calculation criteria were adopted for the numeric data, the specific file table and file explanation was established for the text data, the date express type was established for the date data, and the definition of any specialty words and phrases was kept consistent.The agricultural database frame was founded according to the distinction, complication and seasonal character of the agricultural production and the diversity of demands from the different application systems to the agricultural information. The agricultural database includes four types of information as environment and resource information, agricultural science and technology information, country economic information and agricultural net resource. The agricultural resource and environmentinformation includes soil resource, zone summarization and meteorological resource. The social economic information includes country economic information, agricultural material market information and natural calamity information. The agricultural science and technology information includes variety information and crop production management information. The agricultural net resource includes agricultural book and periodical information, agricultural expert information, agricultural research organization information, patent and achievement information and so on.Under the guidance of system engineering idea, and based on synthesizing the theory and methodology of agronomy, ecology, statistics and computer science, the multimedia agricultural information database including spatial data, attribute data, photograph data and net resource data was developed by widely collecting, and further standardizing and normalizing agricultural resource data, special data (variety data, soil data, atmospheric data, and country economic information), and internet agricultural information. Furthermore, by deeply and systematically studying the characteristics of all kinds of the system structures of the information management systems, and according to the design concept of software engineering, modularization and soft-component, the browser/server mode & web-based agricultural information management system (WAIMS) with the functions of information collection, query, analysis, calculation, prediction and maintenance was developed by utilizing the net computer program language.By using the safe security technology of B/S mode based information system , a complete new role-based safe manipulating model of information system was introduced into the agricultural information management system to establish integrated function for safety control. This technique provides a forceful security for safely using the agricultural information management system.