Constraint monitoring aims to monitor the violation of constraints in business processes, e.g., an invoice should be cleared within 48 hours after the corresponding goods receipt, by analyzing event data. Existing techniques for constraint monitoring assume that a single case notion exists in a business process, e.g., a patient in a healthcare process, and each event is associated with the case notion. However, in reality, business processes are object-centric, i.e., multiple case notions (objects) exist, and an event may be associated with multiple objects. For instance, an Order-To-Cash (O2C) process involves order, item, delivery, etc., and they interact when executing an event, e.g., packing multiple items together for a delivery. The existing techniques produce misleading insights when applied to such object-centric business processes. In this work, we propose an approach to monitoring constraints in object-centric business processes. To this end, we introduce Object-Centric Constraint Graphs (OCCGs) to represent constraints that consider the interaction of objects. Next, we evaluate the constraints represented by OCCGs by analyzing Object-Centric Event Logs (OCELs) that store the interaction of different objects in events. We have implemented a web application to support the proposed approach and conducted two case studies using a real-life SAP ERP system.

本研究主要关注于通过事件数据对业务流程中约束条件的监控，并针对实际业务场景中多对象的业务流程提出了对象中心约束图(OCCGs)来解决现有技术在这种情况下所产生的误导问题，同时提出了一种解决方案。通过对储存不同对象交互数据的对象中心事件日志(OCELs)来发现并评估OCCG所表达的约束条件。研究还实现了一个Web应用，并使用真实的SAP ERP系统开展了两项案例研究。

使用面向对象约束图监控业务流程中的约束