Experimental task: design an entity Bean, a query to the database.

试验任务：设计一个实体Bean，实现对数据库的查询。

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The writer, as one participant of the experimental task, has done a great deal of practical job to test and prove the "course standard".

笔者作为实验课题的参与者之一，对《课程标准》的验证作了大量的实际工作。

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This is far from being a full solution, as it is a bit experimental and relies on less-than-desirable permission settings, but you can see that such a task is possible.

当然，这远非一个完整的解决方案，因为它是试验性的并且依赖于不甚理想的权限设置，但是您可以看出这类任务是可能的。

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This implies several crucial recognitions: that intuition and experience are not sufficient to make all decisions in a way that maximizes shareholder value, that non-experimental methods are not up to the task of determining causality with sufficient reliability to guide many actions, and that experiments can be applied in practice to enough business issues to justify the costs of the capability.

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