A distraction-free access authorization system must be reduced to two displays: “Person may enter the room” and person may not enter the room”. For this, there is a simple mental model from color psychology: green and red. In addition, a clear icon system takes account of accessibility, so that even colour-blind employees can use the system without problems.
When registering a visitor or employee, the security employee can simply switch the accredited rooms from red to green with a finger tip. For example, visitors can enter the conference room, but the server room is reserved for IT staff and service providers. In addition, visitor badges may be used to block entire floors by elevator control.
The registration system for staff has also been simplified: project group assignments allow working groups to access conference rooms, without having to touch each employee card individually – the same applies to fixed units and departments. Those who visit the building regularly, such as cleaners, also receive temporary and repeatable access rights: they can enter rooms only during their working hours.