A system step, however, is not a good basis for delineating a use case transaction, for it depends on the granularity of the description of a flow how many steps you count.

但是，一个系统步骤并不是描述用例事务的一个较好的基础，因为它取决于对您计算的多少步骤的描述。

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In this environment, the system user asserts the identity of the end user in a per transaction basis.

在这个环境中，系统用户按逐个事务断言终端用户的身份。

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At its basis lies the concept of a use case transaction, the smallest unit of size measurement.

它的基础是用例事务的概念，大小度量的最小单位。

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For smaller holdings, those 9 basis points of difference get washed away almost immediately by transaction costs.

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Becoming a fiduciary is not prohibited but it does impose additional requirements and care to avoid conflicts of interest and self-dealing which can become the basis for a prohibited transaction.

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In the new model of advertising, corporations will pay operators for access to individual customers on a transaction basis.

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