Open Masterdata

Open Masterdata stands for the on-demand supply of product master data to the skilled trades. This replaces outdated master data processes based on DATANORM. Every tradesperson receives exactly the items they actually need at that moment (on demand) from hundreds of thousands or even millions of items. This also applies to the associated item details; only the data that is needed is loaded. For example, if no logistical data is required, it is not loaded and stored on the computer. The processes run in the background via web services (XML format, individual items). This means that every craftsman is perfectly supplied at every step of his business process without accumulating data garbage.

The standard regulates authentication, web services, and communication content. Version 2.0 is currently in development, which will also include asynchronous data transfer and a XML format for catalogs, opening up further use cases. 

The Open Masterdata Standard is currently available to members of the German Federal Association for Software and Digitalization in Construction (BVBS), the German Wholesale Association for Building Services (DG Haustechnik), the German Federal Association of Electrical Wholesalers (VEG), and the German Central Association for Sanitary, Heating, and Air Conditioning (ZVSHK) via a restricted area. If you would like to gain access, please contact us. The current standard has been developed for the HVAC sector. A version for the electrical sector is in progress.

Use Cases Open Masterdata

Open Masterdata currently supports the following use cases for the XML format “Individual article”:

  • Creating new articles in the trade software
  • Updating the prices of individual articles
  • Completing/updating small quantities of articles
  • Creating quotations
  • Creating quotations from the configurator

Open Masterdata Version 2.0 supports additional use cases:

  • Initial stocking
  • Updating prices for large quantities of items
  • Completing/updating large quantities of items
  • Supplying mobile systems with current prices
  • Inventory

Contact us for further information!

We are happy to answer your questions and help you get started!

Advantages for wholesalers

Target group-specific data provision


Craftsman-specific distribution of data instead of Datanorm

Demand-oriented optimization of data streams


Continuous on-demand data provision instead of annual total data distribution

Efficient communication processes


Fully automatic background updating of customer data instead of unreliable downloads

Better control of data updates


Current market prices and controlled updating processes

Advantages for craftsmen

High data quality


Benefit from perfect product information, for example in the area of quotations

Avoidance of redundant data storage


Manage each required master data record only once

Process-compatible data scope


All detailed information about the products you sell and install

Access to interface description

You can request access to the standard documentation of Open Masterdata directly here.

Request