The paper has first analyzed the long-distance education and training division situation and the existence question,through studies the domestic and foreign correlations distance learning technology standard,the discussion class number of articles according to the description model and its the data characteristic,establishes the standard the class number of articles according to the model,and has carried on XML 绑定 to this model.The paper has designed based on the XML network class system solution,in three B/On the S overhead construction,designed and has deployed the XML network class development system,the XML network class storehouse management system management system,the AIL network class selection and broadcast system separately.Designs based on the XML class manufacture tool software system structure and the software design pattern,discussed the thought and the realization tool software pass emphatically which the tool software designs constructs the technology,and as soon as developed with VC has conformed to the CELTS standard class manufacture tool software.Meanwhile has carried on the software overhead construction analysis and the system realization to the selection and broadcast system class playe
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