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Introduction

OCPQ is a tool for querying and analyzing object-centric event data. Get started by exploring selected example queries, or by reading through one of our guides.

Examples

For more background information on OCPQ, we also refer interested readers to our paper OCPQ: Object-Centric Process Querying and Constraints published at RCIS 2025 (preprint).

Guides

Get started using one of our introduction guides:

Query guideQuery GuideConstraint guideConstraint GuideFilter guideFilter GuideCEL / Labels guideCEL / Labeling GuideSituation Table guideSituation Tables GuideOC-DECLARE guideOC-DECLARE GuidePath Schema GuidePath Schema Guide

FAQ

Below, we include answers to some common questions. If you have a question that isn’t answered here, please open a discussion.

How can I use OCPQ?

To run OCPQ you can either use the provided pre-compiled installer available from here or build it yourself using Docker (see here).

What input data does OCPQ support?

Currently, OCPQ supports all file formats of OCEL 2.0, in particular OCEL 2.0 XML, JSON, or SQLITE files.

You can find some example datasets here. For instance, with this link, you can download the Order Management example XML OCEL 2.0 log.

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Examples