a. the software shall be adapted to the task to be performed, and shall as far as possible be in Norwegian; b. the software must be easy to use and, if applicable, possible to adapt to the user's knowledge or level of experience; quantitative or qualitative control devices must not be used unless the employees are aware of them; c. the systems must provide the employees with information about how the work is progressing; d. the systems must display the information in a format and at a speed adapted to the operators.