中文摘要：

本文论述了若干典型科学工作流系统生命周期管理的基本步骤和实现方式,包括组合、模型表示、映射、执行以及元数据来源管理等。以Taverna科学工作流系统为例,简要阐述了科学工作流在生物信息学研究方面的应用案例。总结了科学工作流领域的未来发展趋势和研究内容。

英文摘要：

This article discusses the basic procedures and implementation of the life cycle management of typical scientific work flow systems,including composition,model representation,mapping,implementation and metadata provenance management.It then takes the scientific work flow system of Taverna as an example to expound its application in biology information research.The future trend of scientific work flow research is summarized in the last part.