1. A method for setting up a customizable client-server system, comprising: custom selecting one of (i) search data fields from a proposed variety of selectable search data fields in order to create a user interface search mask and (ii) archive fields from a proposed variety of selectable archive fields of an archive database; and performing an automatic linking procedure between (a) the fields selected during said step of custom selecting from one of the two varieties of selectable fields, and (b) the whole of the variety of the respective other one of the two varieties of selectable fields in order to identify and automatically generate a list of corresponding respective fields of the other one of the two varieties.