建模员不应该假设数据的位置，值访问或者引用语义访问，也不应该假设任何清晰的并发管理设备。
Modelers should make no assumptions about the location of the data, call-by-value, or call-by-reference semantics nor any implicit concurrency management facilities.
我们为 Web 站点上的数据建模者、系统管理员和 BI 专业人员提供了大量资产。
We have a number of assets for the data modeler, the system administrator, and BI professionals on the Web site.
建模是非常简单的思想，但在程序员中对建模的阻力却有些令人惊讶。
Modeling is quite a simple idea, and the resistance to it among programmers is somewhat surprising.
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