Rhize ISA-95/ISA-88 JSON Schema

A JSON Schema implementation of the ANSI/ISA-95 and ANSI/ISA-88 standards.

An JSON implementation of the ANSI/ISA-95, Enterprise-Control System Integration, family of standards (ISA-95), known internationally as IEC/ISO 62264. Rhize ISA-95/ISA-88 JSON Schema consists of a set of JSON schemas written using the JSON Schema's Schema language (2020) that implement the data models in the ISA-95 standard.

This JSON schema is intented be used for design for syncrhonous and asynchronous APIs.

Based on the works of https://github.com/MESAInternational/B2MML-BatchML.

Abbreviations

Acronynm	Description
ANSI	American National Standards Institute
API	Application Programming Interface
B2MML	Business to (2) Manufacturing Markup Language
BatchML	Batch Markup Language
BOD	Business Object Document
ISA	International Society of Automation
IEC	International Electrotechnical Commission
JSON	JavaScipt Object Notation
XML	eXensible Markup Language
XSD	eXtensible markup language Schema Definition

Usage

The JSON schema can be used to validate JSON file content and can be referenced multiple ways.

Using https://json.libremfg.ai

For convenience, Libre Technologies Inc. hosts the schema at https://json.libremfg.ai/.

{
    "$schema": "https://json.libremfg.ai/schemas/v2.0.1.equipment.schema.json",
    "Equipment": {
        "ID": "Hello World"
    }
}

Using Locally

You can clone this repository and use file references to the schema.

1. Clone this respository to a directory for example git clone https://github.com/libremfg/json-schema ~/json-schema
2. Create a new file touch ~/equipment.json. Edit the file with:

{
    "$schema": "~/json-schema/schemas/v2.0.1.equipment.schema.json",
    "Equipment": {
        "ID": "Hello World"
    }
}

Using with external tools

You can use the JSON schemas for validating ISA-95 based data exchanges. Here's an example of how to use it with a validation tool like Ajv:

const Ajv = require("ajv");
const schema = require("./path/to/json-schema/v2.0.1.equipment.schema.json");

const ajv = new Ajv();
const validate = ajv.compile(schema);

const valid = validate(data);
if (!valid) {
  console.log(validate.errors);
}

Contributing

Contributions are welcome! Here's how you can get invovled:

1. Fork the repository.
2. Create a new branch for your feature or bugfix: git checkout -b feature-name. Following conventional commits is appreciated but not required.
3. Commit your changes: git commit -m "Add a new feature"
4. Push your branch: git push origin feature-name
5. Create a Pull Request.

Issues

If you encounter any bugs or want to suggest enhancements, please open an issue and provide detailed steps to reproduce the problem or your enhancement proposal.

License

Rhize ISA-95/ISA-88 JSON Schema is distributed under AGPL-3.0-only.

Acknowledgements

• Based on the works of MESA International.
• Contributions from the ISA-95 and ISA-88 community are appreciated.

Copyright 2025, Libre Technologies Inc.