The technology stack and data ecosystem used to build consists of different programming languages, databases and tools.


The core of the data server which offers the parsing and processing of IFC models in built up using the Ruby programming language. Which is a powerful script language and has unique features like the Meta programming.

BIM Viewer

The online BIM Viewer uses HTML, Java script, CSS for the GUI and front-end and PHP for the server side.

Some JS libraries which are used:

  • jQuery
  • Threejs
  • Chart.js


For the data management we use dual DB system:

  • SQLite for managing the BIM information of single models in simplified way
  • Neo4j as a graph database for central management of many BIM models to offer advanced functions like building topology analysis and model comparsation

For processing IFC geometry we use: