In multi-storey enterprises (hospital, school, etc.) to detect the fault, it is always easy to notify the person concerned.
The data matrix that we put in every room with the system we have developed represents the identity of the room. These identities are read with a simple android device and all the forms belonging to the room are listed.
For example, if the bulb in the room exploded, after reading the QR code you entered the fault record form in front of you and sent the related fault to the relevant personnel.