The aim of this paper is to present research shedding some light on innovation factors identification and measurement in the University of Belgrade’s library system by means of innovation questionnaire, since one of the main innovation management elements is to recognize and measure innovation factors of influence. In that sense, the key innovation factors important for this domain have been identified, based on selected research in the broader area of innovation management. Survey results give one of the rare insights in innovativeness level and characteristics in this important part of the nonprofit sector of a transition economy. In this specific case, that should be the prior investigation with the intention of helping managers to improve organization propensity to innovate and to define/reexamine innovation strategy. Research findings revealed that innovation factors measurement should be considered very important for ICT innovation management in the library system, and that further research would be necessary.