Freefluo 是一个使用Web Service的工作流协同工具，可以处理WSDL的Web Service调用。支持两种XML格式的工作流语言：IBM的WSFL和XScufl。Freefluo非常灵活，它的核心是不与任何工作流语言或执行架构关联的可重用协同框架。 Freefluo包括可执行使用WSFL一个子集描述的工作流的运行库。
Freefluo is a workflow orchestration tool for web services initially developed by IT Innovation but now available to all from the Freefluo Sourceforge Site. It can handle WSDL based web service invocation. It supports two XML workflow languages, one based on IBM’s WSFL and another named XScufl that is under development as part of the Taverna Sourceforge project.
Freefluo is very flexible, at its core is a reusable orchestration framework that is not tied to any workflow language or execution architecture. Freefluo includes extension libraries that enable execution of workflows written in a subset of WSFL. Support exists for for discovery via standard UDDI and recording of provenance.
Freefluo is one component within the myGrid toolkit. The myGrid toolkit is composed of numerous useful software components. These components are designed to demonstrate higher level functionalities over an existing Grid infrastructure that support scientists in making use of complex distributed resources. These higher level functionalities extend through service lookup and discovery, provenance and data storage.
