OMEX metadata specification (version 1.2).

Area of Science:

• Computational biology
• Bioinformatics
• Systems biology

Background:

• Lack of standardized annotation hinders reuse and reproducibility of computational biomedical models.
• Existing methods for model annotation are fragmented, limiting interoperability and semantic comparison.
• The COmputational Modeling in BIology NEtwork (COMBINE) community seeks to improve model sharing and analysis.

Purpose of the Study:

• To introduce version 1.2 of the OMEX metadata specification for annotating computational biomedical models.
• To facilitate model reuse, reproducibility, searchability, and semantic analysis through standardized annotations.
• To provide a community-driven, harmonized approach for annotating diverse model representations within OMEX archives.

Main Methods:

• Development of a specification for encoding annotations within Open Modeling and EXchange (OMEX) archives.
• Incorporation of model-level annotations in version 1.2, expanding on previous scale-specific annotations.
• Adoption of best practices for namespaces and introduction of a common root (omex-library.org) for annotations.

Main Results:

• A detailed specification (version 1.2) for annotating OMEX-formatted computational biomedical models is presented.
• The specification includes model-level annotations and utilizes best practices for namespace management.
• The approach establishes omex-library.org as a central resource for annotation roots.

Conclusions:

• The OMEX metadata specification provides a standardized, community-driven framework for annotating biomedical models.
• This specification promotes enhanced model reuse, discovery, and semantic analysis by improving interoperability.
• It serves as a technical guideline for developing software tools to support the standard and advance the field.