过程支持系统中异常处理问题的研究

Exception handling in process support system

定义了过程支持系统中的异常和异常处理,研究了过程异常分类和过程异常处理策略。根据过程支持系统的特点,设计了异常和异常处理器。提出了一种基于活动图和接口开发的方法,来检测和处理各种可预测异常,异常的检测采用主动检测和被动检测结合的方式,保证异常的捕获。对于不可预测异常,提出了一种基于实例的方法来进行处理,增强了系统的异常处理能力。

Process exceptions and exception handling in Process Support System （PSS） were defined. The classification of process exceptions and exception handling strategy were studied, and then process exceptions and exception handlers were designed based on the characteristic of PSS. A method that combined activity network modeling and Application Programming Interface （API） programming was put forward to detect and handle different kinds of predictable exceptions. Both active and passive techniques were used to ensure that exceptions could be detected and captured. A case-based method was presented to handle unpredictable exceptions so as to enhance system＇s ability in exception handling.