---
title: "Vocabulary Management | OpenEPCIS Docs | OpenEPCIS - an open-core, GS1-compliant EPCIS implementation."
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last_updated: "2026-06-28T23:25:35.716Z"
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  description: "Collection of standardized constants and strings for EPCIS event data."
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# **Vocabulary Management** Collection of standardized constants and strings for EPCIS event data. [~~epcis-2-0~~](https://openepcis.io/de/tags/epcis-2-0)· [~~constants~~](https://openepcis.io/de/tags/constants)· [~~openepcis~~](https://openepcis.io/de/tags/openepcis)· [~~centralization~~](https://openepcis.io/de/tags/centralization)· [~~epcis-tools~~](https://openepcis.io/de/tags/epcis-tools)· [~~standardization~~](https://openepcis.io/de/tags/standardization)· [~~traceability~~](https://openepcis.io/de/tags/traceability)· [~~vocabulary~~](https://openepcis.io/de/tags/vocabulary)· [~~compliance~~](https://openepcis.io/de/tags/compliance)· [~~supply-chain-management~~](https://openepcis.io/de/tags/supply-chain-management)· [~~data-dictionary~~](https://openepcis.io/de/tags/data-dictionary)· 2 min read ## Quick links Please find below the links to the codes referenced on this documentation page: • EPCIS vocabulary/constants application code : https://github.com/openepcis/openepcis-epcis-constants ## Introduction In the development of applications compliant with the EPCIS standard, developers frequently encounter a set of recurring constants and string values. These values, representing standard EPCIS terms, event information, GS1-related keywords, etc. are crucial for ensuring data consistency and interoperability. Managing these constants across multiple OpenEPCIS projects has been a challenge. Duplication of definitions leads to maintenance overhead, increased risk of inconsistencies, and hinders code readability. This project, OpenEPCIS Event Constants, addresses these issues by providing a centralized repository for these essential values. The EPCIS standard defines a set of vocabulary. This data often includes standardized terms and identifiers, such as: - **`**bizStep**`:** Represents a business step in the supply chain. - **`**disposition**`:** Describes the state of a physical entity. - **`**sgtin**`**: Describes a type of identifier in EPCIS. - **`**ObjectEvent**`**: Describes a type of event in EPCIS. These values are fundamental to various EPCIS based projects during the validation or processing. ## Usage The constant information is encapsulated within the `**EPCIS**` class, providing direct access to standardized values.**Example 1: Retrieving the `**bizStep**` keyword:**```
final String businessStep=EPCIS.BIZ_STEP;
System.out.println("Business Step: "+businessStep); // output: bizStep

final String errorDeclaration=EPCIS.ERROR_DECLARATION;
System.out.println("Error Declaration: "+errorDeclaration); // output: errorDeclaration
```## Contribution The OpenEPCIS project encourages community contributions to expand and improve the vocabulary repository. Developers can contribute by: - Adding new EPCIS vocabulary or constant terms. - Improving existing vocabulary. - Providing feedback and suggestions. - Adding test cases that validate the vocabulary. By centralizing and standardizing EPCIS vocabulary, this project helps developers to develop EPCIS applications more efficiently.