However, not all systems based on central servers need access to personal location data; several systems have been created in such a way as to use central servers only for intercommunication, which allows privacy to be respected (see next section).
Hata hivyo, sio mifumo yote yenye seva kuu inayohitaji kuwa na ufikiaji wa data ya eneo la kibinafsi; mifumo kadhaa ya utunzaji wa faragha imeundwa ambayo hutumia seva kuu tu kwa ajili ya mawasiliano (angalia sehemu hapa chini).