semantics

These relationships impose some semantics on the system that further assist in validating or understanding the system.

这些关系利用系统上的一些语义可以进一步帮助确认或者理解这个系统。

They communicate as required to get the job done, encapsulating what to do, how to do it, and when to do it on their own schedule, and with clear "run to completion" semantics.

它们根据需要进行通信以完成工作，按自己的计划封装了要做什么、如何做以及何时做，并带有清楚的“从运行到完成的工作方式”语义。