# OCEL (Object-Centric Event Log) 2.0 Specification

arXiv: https://arxiv.org/abs/2403.01975 · HTML: https://mlsanity.com/paper/2403.01975/

## Key facts

- Cited by 7 papers in the map (data through 14 Oct 2026).
- First posted on arXiv 4 Mar 2024.

## Built on by (most cited first, 7 of 7)

- [AI-Enhanced Business Process Automation: A Case Study in the Insurance Domain Using Object-Centric Process Mining](https://mlsanity.com/paper/2504.17295/) (2025)
- [Process Trace Querying using Knowledge Graphs and Notation3](https://mlsanity.com/paper/2409.04452/) (2024)
- [Leveraging GPT-4o Efficiency for Detecting Rework Anomaly in Business Processes](https://mlsanity.com/paper/2502.06918/) (2025)
- [OCPM2: Extending the Process Mining Methodology for Object-Centric Event Data Extraction](https://mlsanity.com/paper/2503.10735/) (2025)
- [A Framework for Object-Centric Predictive Monitoring of Collaborative Processes](https://mlsanity.com/paper/2608.27671/) (2026)
- [DNative-Twin: Decision Graphs and Digital Twins for Reconstructable Agentic Decisions](https://mlsanity.com/paper/2609.03787/) (2026)
- [From Event Logs to Governed Action: A BlueSky Agenda for Agentic Process Mining](https://mlsanity.com/paper/2609.07984/) (2026)

## Abstract (arXiv)

Object-Centric Event Logs (OCELs) form the basis for Object-Centric Process Mining (OCPM). OCEL 1.0 was first released in 2020 and triggered the development of a range of OCPM techniques. OCEL 2.0 forms the new, more expressive standard, allowing for more extensive process analyses while remaining in an easily exchangeable format. In contrast to the first OCEL standard, it can depict changes in objects, provide information on object relationships, and qualify these relationships to other objects or specific events. Compared to XES, it is more expressive, less complicated, and better readable. OCEL 2.0 offers three exchange formats: a relational database (SQLite), XML, and JSON format. This OCEL 2.0 specification document provides an introduction to the standard, its metamodel, and its exchange formats, aimed at practitioners and researchers alike.