Reputation is one of the significant mechanisms to ensure implementation of a contract.

声誉是确保合同履行的重要因素之一.

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Even if the underlying implementation is changed without impacting the contract, often service consumers do not want to incur the risk of accepting a new implementation without thorough testing.

尽管底层实现发生改变并没有影响到契约，但通常服务客户不愿承担使用一个未经过完整测试的新方法所带来的风险。

youdao

It's a common mistake to test the implementation of the unit, rather than the contract the unit has with its clients. Let's say that the push method is implemented like so.

这是测试单元实现的常见错误，而不是单元与其客户机签定的契约。

youdao

Using Feb. 8 as a contract implementation date could be worth millions of dollars to the US Airways pilot group.

FORBES: How US Airways Pilot Leaders Found Their Way to Unanimously Back Merger Deal