In the development, selection, purchase and modification of software and in the definition of tasks involving the use of visual display units, the employer shall take into account the following factors, insofar as the requirements or intrinsic characteristics of the task do not preclude this:
1° The software is adapted to the task to be performed;
2° The software is easy to use and is adapted to the user’s level of knowledge and experience;
3° The systems provide workers with indications of their progress;
4° The systems display information in a format and at a pace adapted to the operators;
5° Ergonomic principles are applied in particular to the processing of information by humans.