Designment And Implementation Of Virtual Experiment Component Metadate Test Mode

With the development of computer networks, E-learning is gradually changing people's study style. More and more people enjoy E- learning which made it is possible for people study at anyplace and anytime instead of traditional learning . Especially for our country that the assignments of the educational resources were uneven , delivering the high-quality educational resources to the poverty and backward areas, and let all children can enjoy high-quality education resources is of great significance.《Guidelines of the National Program for Medium- and Long-Term Educational Reform and Development 2010-2020》specified that: put high-quality educational resources development and application in significant position, including develope web-based course. Our task is to build digital libraries , virtual laboratorise and public services platform for educational resources which is open for all people , in order to promoting the sharing and popularization of high_quality educational resources.But as the digital edcational resources grows exponentially, other problems emerges one by one:how to find theknowledge we need in the sea of knowledge quickly, accurately , and how to reuse and integrate the existing resources into new resources easily......The establishment of Learning Technology Standardization Committee was designed for solving these problems, Through the constraint of E-learning standard , let all the resources truly becomes manageable, and available, and "renewable" resources. This paper mainly discussed the the key and difficult areas in E-learning: standards for the development and application of digital experimental resources in virtual experimental field .Experiment course is an important link to cultivate student's innovative thinking and pratical ability. Virtual experimental system is comprised of the application platform, experiment modeling system, experiment computing system, experiment , experimental evaluation system and experimental support services. The normal operation of virtual experimental system is based on each standard of vitutal experimental standard. system. This paper introduces the virtual experiment standard system, virtual experimental component metadata as the most basic standard virtual in experiment standard system , it is the foundation to realization the effective recognition, retrieval, using of experimental resources. This paper mainly studied the drafting principle of virtual experimental component metadata and specific metadata composition. On this basis, we submited the virtual experimental component metadata standard draft, according to According to the actual requirement, using Extensive Makeup Language encoding virtual experimental component metadata. Make them available in each virtual experimental system modules, so every module even the whole information education resources system, can search and position the resources rapidly and accurately.Because of the misunderstand of standard and human negligence , during the application of the virtual experimental component metadata standard, there will appear the application is inconsistent to standard that result to low interoperability. In order to ensure the extension and application of standard smoothly. Under the precondition of making virtual experimental component metadata standard consistency, this project has developed a standard test system for virtual experimental component metadata. After studied the learning objects metadata testing model in detail, we develop a new testing model that can accommodate more test points, and easily extended, so it will be modified as the standard revision changed. Finally ,according to the test model, this project developed the virtual experimental component metadata system prototype, and used in virtual experiment system .