Method for assigning printed circuit board types - on a pick-and-place line, - set-up families with associated set-ups (165, 170) being provided; - a number of printed circuit board types being assigned to each set-up family and a number of component types being assigned to each associated set-up (165, 170), - with the result that a printed circuit board of a printed circuit board type in a set-up family can be populated by means of components of the component types in the set-up (165, 170) on the pick-and-place line; - stocks of components of the component types in a set-up (165, 170) being able to be provided by means of set-up tables on the pick-and-place line, the method comprising the following steps of: - detecting printed circuit board types, printed circuit boards of which are intended to be populated with components of associated component types; - assigning detected printed circuit board types to a predefined number of set-up families of the fixed set-up type, a fixed set-up being assigned to each of the set-up families of the fixed set-up type, a fixed set-up remaining with an unchanged set-up on a number of shuttle tables over a predetermined planning horizon, - optimizing the assignment with respect to a predetermined criterion, - a quantity of printed circuit boards to be populated and a population time which is needed to populate a printed circuit board of the printed circuit board type on the pick-and-place line being assigned to each printed circuit board type, and the criterion comprising maximizing the population time, which is needed to populate all printed circuit boards of all associated printed circuit board types, as far as possible, - the optimization being carried out in such a manner that the component types in the fixed set-ups (165, 170) of all set-up families of the fixed set-up type can be divided among set-up tables such that a number, which is at least one, of constant set-up tables that can remain with an unchanged set-up during a set-up change can remain on the pick-and-place line over all set-ups (165, 170), - providing one of the fixed set-ups on the pick-and-place line. - on a pick-and-place line, - set-up families with associated set-ups (165, 170) being provided; - a number of printed circuit board types being assigned to each set-up family and a number of component types being assigned to each associated set-up (165, 170), - with the result that a printed circuit board of a printed circuit board type in a set-up family can be populated by means of components of the component types in the set-up (165, 170) on the pick-and-place line; - stocks of components of the component types in a set-up (165, 170) being able to be provided by means of set-up tables on the pick-and-place line, - detecting printed circuit board types, printed circuit boards of which are intended to be populated with components of associated component types; - assigning detected printed circuit board types to a predefined number of set-up families of the fixed set-up type, a fixed set-up being assigned to each of the set-up families of the fixed set-up type, a fixed set-up remaining with an unchanged set-up on a number of shuttle tables over a predetermined planning horizon, - optimizing the assignment with respect to a predetermined criterion, - a quantity of printed circuit boards to be populated and a population time which is needed to populate a printed circuit board of the printed circuit board type on the pick-and-place line being assigned to each printed circuit board type, and the criterion comprising maximizing the population time, which is needed to populate all printed circuit boards of all associated printed circuit board types, as far as possible, - the optimization being carried out in such a manner that the component types in the fixed set-ups (165, 170) of all set-up families of the fixed set-up type can be divided among set-up tables such that a number, which is at least one, of constant set-up tables that can remain with an unchanged set-up during a set-up change can remain on the pick-and-place line over all set-ups (165, 170), - providing one of the fixed set-ups on the pick-and-place line.