When a vendor joins UAO, it is his responsibility to verify and validate the offer that he launches on the market. And he is responsible to support his offer.
When it comes to project support, it is up to the application system integrator to guarantee and support the application for the user. In the event of issues with the UAO platform, the system integrator will rely on the UAO platform vendor for support. In the event that the issues are with the UAO runtime itself, the vendor will turn to UAO for support to resolve the issue if he is not able to resolve himself..
This approach is not new – many automation PLC vendors use 3rd party software products for their IEC 61131 software, and most project applications are provided by independent system integrators.