Hayloft, Project Haystack- based Domain Modeler

| Introduction

Hayloft is 75F's Haystack-based Domain Modeler application that is an Open-data Digital Twin repository that will allow any member to contribute and reuse peer-reviewed, plug-and-play digital twin models of equipment for custom applications.

It’s a Project Haystack-based data modeling tool for creating mapped logical, physical, or conceptual data models of various equipment in the smart BMS space. It is meant to be the comprehensive repository for Project Haystack equips and a modeling tool for creating models specific to each physical equipment type needed. 

| Significance

Think GitHub for Project Haystack with a spreadsheet interface. By creating an open-source tool for applying the inheritance of Project Haystack definitions to specific device and equipment models, the Haystack Domain Modeler will allow anyone to create, apply, and share equips definitions across platforms. This new capability will enhance the integration experience for building professionals across the buildings industry, enabling faster and more affordable data standardization for varying equipment types and collaboration between companies. 

| Giving Back to the Community

75F will host and maintain the Haystack Domain Modeler as a free tool. It is publicly available to anyone within the industry.

Based on tags, point library, and the standardized domain models established in the tool, the models working as templates will help standardize all tagging across equipment added into the tool. It will normalize the nomenclature used across various equipment, be it in a Modbus, BACnet, or custom OEM-supported format. 

| All it Does

The Haystack Domain Modeler community tool publishes models to standardize consensus-based equipment models to support data interoperability in a wide range of equipment manufactured by various OEMs. With various permission users in the system, a Project Haystack Review Committee will approve the tags and models that continuously come into the tool. These reviewers will continue the process for all tags, points, and models being added to the tool to ensure the integrity of the data contributed by various creators. And, with changelog auditing, any user can trace back all changes happening in the tool continuously. 

| Advantages

Project Haystack is a crucial foundation for making sense of buildings’ overwhelming capability to generate data. The Haystack Domain Modeler aims to further this mission by: 

• Presenting an opportunity to create peer-reviewed, plug-and-play digital twin models of equipment for custom applications, to be reused by anyone else in the industry. 
• Creating a collaborative community that offers visibility into how other organizations are using Project Haystack. 
• Ultimately enabling more efficient and affordable collaboration between IoT systems.

To start accessing the domain refer to. Accessing Domain Modeler