摘要
多实例MI是一种重要的工作流模式 ,由于它引入了许多与工作流语言的语义和系统实现相关的问题 ,在许多情况下难以被直接有效地实现。本文在对MI的类型和实现技术进行分析的基础上 ,提出了一种基于“活动数组”的方案。它不仅能明显简化MI的建模 ,提高模型语义的精确性 ,并且具有较强的表达能力 。
Multiple instance (MI) is an important workflow pattern, which induces many problems associated with the workflow language semantics and the system implementation, and cannot be implemented directly and effectively in many cases. The taxonomy and implementation of MI is analysed, and a solution based on “activity array” is proposed, which can not only remarkably reduce the complexity of the modeling of MI and ensure precise semantics and powerful expressiveness,but also be implemented effectively and efficiently.
出处
《计算机工程与科学》
CSCD
2005年第1期89-92,共4页
Computer Engineering & Science
基金
国家 8 6 3计划资助项目 (2 0 0 2AA1 1 6 0 40 )
