The document discusses the evolution of integrated library systems (ILS) and the need for next generation ILS. Originally, ILS were simply inventory control systems, but now users demand more. Next generation ILS must be interoperable with other systems and flexible enough to meet the needs of any library. While early ILS objectives were to encompass various library functions in a single centralized system, the reassessed objectives recognize that functions don't need to be in one system and duplication can be reduced without automatic generation. Instead of one ILS controlling all functions, control can be dispersed across connected systems. Next generation ILS will greatly help both librarians and users.