一种用于工作流的结构化数据模型及应用研究

A Structured Data Model and Application Research on Workflow

为了实现工作流中数据信息的层次化表达和管理,本文提出了一种结构化数据模型(SDM)。该模型通过文档信息表(DIF)将工作流的数据信息组织成串行、并行、条件和循环四种可递归定义的数据类型,给出了这些数据类型的数学定义,用树组织和描述文档信息表。本文还研究了通过SDM直接生成复合表单的方法。这种复合表单不仅包含了需要处理的属性数据,还包含了各属性之间的层次关系,使终端用户使用起来直观易懂。

To present hierarchically and manage the workflow data information,a structured data model（SDM） is proposed.It can organize the workflow data into document information form（DIF） by the data type of serial,parallel,condition and loop.The mathematical definition of these data types is given in this paper.Tree structure is used to organize and describe the DIF.The paper studied a method which can directly generate composite form through SDM.This form contains not only the attributes that needed to be processed,but also the hierarchical relationships between attributes,which is friendly and easy for terminal users.