The salary system in Dutch academia is based on a number of "scales" (schaal), which are related to the different academic ranks. The salary in the same scale can vary considerably, depending on the "step" (trede) on which the employee is positioned (see the current salary table). In job offerings, the scale is usually specified in the job advertisement, whereas the step depends on the candidate and can be subject to negotiation.
How does one rise in "steps"? Is it bound to certain achievements, or does it happen automatically after a certain time (what are the time intervals in this case)?
How is the starting step for a new employee usually determined?