Magistro baigiamajame darbe „Elektroninio parašo panaudojimo verslo įmonėse modelio sukūrimas“ išanalizuota el. parašo naudojimo problematika, el. parašo bei el. dokumentų klasifikacinės sistemos bei parengtas el. parašo taikymo versle modelis, kuris patikrintas empiriniu tyrimu. Pirmoje darbo dalyje išanalizuota el. dokumentų raida ir jų klasifikacinės sistemos. Antrajame skyriuje atlikta el. parašo taikymo verslo įmonėse sisteminė analizė: apibrėžiama el. parašo sąvoka, rūšys, el. parašo pritaikymo versle, remiantis komunikacinėmis pusėmis. Trečiojoje darbo dalyje atliktas el. parašo taikymo versle empirinis tyrimas, kuriame ištyrus el. dokumentų specialistų ekspertinę nuomonę, nustatomos el. parašo taikymo problemos, jų sprendimo būdai. Paskutiniame skyriuje – sukurtas el. parašo taikymo versle modelis bei atliktas modelio ekspertinis vertinimas. / In Master thesis ‘The model of Using Digital Signature in Business’ the topic of digital signature, the classification systems of digital signature and digital records was analyzed as well as a model of digital signature usage in business was prepared which was examined by empirical research. In the first part of thesis the development of digital records and their classification systems was analyzed. The second part consists of the systemic analysis of digital signature usage in business: defined the concept of digital signature, it kinds (kinds of digital signature), usage in business based on communicational sides. The third part contains the empirical research of digital signature usage in business which was made by the examination of the digital records professionals’ opinions, the problems of digital signature usage and the ways of their solutions were defined. In the last part – a model of digital signature usage in business was created and the evaluation of it was made.