Abstract: Process instance is an execution of some business process and an important part of standard event log.The research of massive process instances was important for process data visualization,process analysis and process mining.Aiming at the massive process instances generated by collecting tasks of event log,a mechanism of storage,indexing and retrieval was proposed,which could easily create multi-dimensional indices and return the correct query result quickly according to the search requirement.The experimental result proved the feasibility and effectiveness of this mechanism.

Key words: process instance, storage, index, retrieval

摘要： 流程实例是业务流程的一次具体执行,是标准事件日志的重要组成部分,研究如何管理海量流程实例对于流程数据可视化、流程分析和流程挖掘具有重要意义。针对事件日志采集任务中生成的海量流程实例提出一套存储、索引和检索机制,该机制可以为流程实例从多个维度创建索引,能根据用户输入的组合检索条件快速返回正确的查询结果。通过实验证明了所提管理机制的可行性和有效性。

关键词: 流程实例, 存储, 索引, 检索