The timeline shows that we already had executable process languages with the web services flow language (WSFL) by IBM and the XLANG specification by Microsoft.

时间线表明我们已经具有可执行流程语言：IBM的Web服务流程语言（WSFL）。Microsoft的XLANG规范。

youdao

The Business Process Execution Language for Web Services (BPEL4WS) represents the merging of WSFL and XLANG, and with luck, will become the basis of a standard for web service composition.

Web 服务的业务流程执行语言（BPEL4WS）是 WSFL 和 XLANG 融合的产物，如果运气好的话，它将成为 Web 服务整合标准的基础。

youdao