速度非常快、轻量级的引擎，使用富有表达能力的Petri网定义工作流，不要求关系数据库，使用简单，能和Java应用集成。事实上，它是按嵌入式设计的-Bossa is a workflow engine written in Java. The engine is very fast and lightweight, uses a very expressive Petri net notation to define workflows, does not require a RDBMS and

Jbpm，他是jboss下的一个开源项目，是个基于petri net理论为基础的工作流引擎。本文主要通过jbpm源代码分析下jbpm引擎内核工作原理。-Jbpm, he is an open source project under jboss, is a theory based on petri net-based workflow engine. This paper analyzes the source code through the jbpm engine under the j

bossa引擎是一款开源的轻量级的工作流引擎，他是基于petri net的，不需要后台数据库系统的支持，他通过叫prevaler的系统来维护自身的持久化，所谓prevaler系统是基于sun的Serializable接口的。-bossa engine is a lightweight open source workflow engine, based on the support of petri NET, and does not require back-end database syst

Asp.NET+JQuery制作工作流程图(Asp.NET&JQuery create workflow)