系统设计按标准化、规范化，分层设计，构件化实现。
System design by standardization, standardization, and hierarchical design, component of achieving.
系统设计按标准化、规范化，分层设计，构件化实现。
System design according to the standardization, the layering design, realization of components.
方法：以年龄10～15岁少年为对象，参考第五次人口抽样调查资料，按分层随机原则取样，根据测验结果和标准化程序建立常模。
Methods: According to the fifth national demographic investigations, the norm samples aged 10 to 15 years were collected in a stratified and random way.
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