VeriSO is a QGIS plugin that allows verifying for Interlis data. It was originally developed by Stefan Ziegler and it is now mantained by OPENGIS.ch LLC
This specific VeriSO plugin is designed for the verification of PNF-data.
To add your own modules you have to add a folder into veriso/modules, its content should be based on /veriso/templates/template_module
The checks are loaded dynamically in alphabetical order from each check folder.