As ontologies are used in more domains and applications and as they grow in size, the consequences of bad ontology design become more critical. Bad ontologies may be inconsistent, have unwanted consequences, be ridden with anti-patterns, or simply be incomprehensible. In general, bad ontologies present design mistakes that make their use and maintenance problematic or impossible.

Programmers have had access to various tools, such as debuggers or linters, to help identify stylistic errors, suspicious constructs, or logical errors, to avoid bad program design. Similar methods and tools are needed for ontology engineering.

This workshop aims to bring together research on all aspects to bad or good ontology design, including use cases and systematic reviews of bad or good ontology design, techniques and tools for diagnosing, explaining, and repairing bad ontologies, and approaches or benchmarks for evaluating such techniques.

We welcome original contributions about all topics related to bad or good ontologies, including but not limited to:


Monday 23rd September:

Important dates

May 31, 2019 abstract pre-registration on EasyChair (new)
June 15, 2019 submission deadline (extended)
August 15, 2019 camera-ready versions due for proceedings
September 23-25, 2019 JOWO 2019 in Graz


Papers should be submitted non-anonymously in PDF format following IOS Press formatting guidelines (downloadable here). Submissions should be uploaded via EasyChair (select the "BOG" track). They can be accepted for publication as:


Articles will be published in the IAOA subseries of the CEUR workshop proceedings. See previous editions here.

Program Committee