Transaction and HTTP request metering based on CPU time per hour, minute, or second is the most accurate billing and metering model, as each transaction can be measured for total cost.

基于每小时、每分钟或每秒钟CPU时间进行的事务和HTTP请求计量是最准确的计费和计量模式，因为可以计算总成本中每个事务的成本。

youdao

Each service may only provide a small part of the overall business transaction, with results of one operation feeding into the processing of another (such as order fulfillment and billing).

每个服务只提供整个业务事务的一小部分，结果是一个操作进入另一个的处理中（例如订单执行和记账）。

youdao

Here, t1234 is the transaction id that identifies the transaction; each service ties the elapsed CPU time to the transaction id for later billing and metering.

这里，t1234是识别事务的事务ID；每个服务绑定对应事务id的CPU运行时间，用于以后计费和计量。

youdao

In this type of agreement, the partner institution owns the credit risk for the cards issued, handles customer relationships and is responsible for transaction authorization, billing and pricing.

FORBES: Quick Take

Billing based on the value of the transaction rather than the hours worked tends to make the work worthless.

FORBES: 5 Neglected Tax Developments of 2011