摘要:A computerized s e rials record and control syst e m develop e d in 1968/69 for th e T ec hnical Information D e partm e nt of Pfiz e r Inc . is describ e d and s ubj e ct e d to a cost analysis . This c ost analysis is condu c t e d in th e context o f an in ve stm e nt decision, using th e c oncept of net pr e s e nt value, a method not previously us e d in library literatur e . Th e c ost analysis r e veals a positiv e ne t pr e s e nt valu e and a syst e m lif e br e ak-ev e n r e quire me nt of sev e n years at a 10% cost of capital . This d e monstrat e s that such an automated syst e m c an be economically justifiable in a library of r e latively mod e st size (approx. 1 , 100 s e rial and periodical titles ) . It may b e that th e br e ak-ev e n point in t e rms of coll e ction si ze r e quir e d for suc ce ssful automation of serial r e cords is smaller than has been assumed to date .