Under the intended conditions of use, the discomfort, fatigue and physical and psychological stress faced by the operator shall be eliminated or reduced to the minimum possible, taking into account at least, the following ergonomic principles:
- a)allowing for the variability of the operator’s physical dimensions, strength and stamina;
- b)avoiding the need for demanding work postures or movements and manual force exertions that exceed the operator’s capacity;
- c)providing enough space for movements of the parts of the operator’s body;
- d)avoiding a machine-determined work rate;
- e)avoiding monitoring that requires lengthy concentration;
- f)adapting the human-machine interface to the foreseeable characteristics of the operators, including with respect to machinery or a related product with intended fully or partially self-evolving behaviour or logic that is designed to operate with varying levels of autonomy;
- g)where relevant, adapting machinery or a related product with intended fully or partially self-evolving behaviour or logic that is designed to operate with varying levels of autonomy to respond to people adequately and appropriately (such as verbally through words and non-verbally through gestures, facial expressions or body movement) and to communicate its planned actions (such as what it is going to do and why) to operators in a comprehensible manner.