Purpose The purpose of this paper is to develop an evaluation model for National Judiciary Informatics System (NJIS), which is an e-justice system forming part of e-government, based on the models and the theories of information systems (ISs). Design/methodology/approach The survey was conducted on 8,840 internal users working for judicial services in Turkey. The success of the NJIS as an e-justice system is evaluated using structural equation modeling (SEM). Findings The results show that while the most important factor is the latent variable information quality in the SEM created to analyze the satisfaction of internal users using the NJIS, other factors include perceived usefulness (PU), system quality, and service quality, respectively. It is found that design quality has affected directly and positively the perceived ease of use (PEoU) while PEoU has affected the PU in the same manner. Research limitations/implications This study was solely concerned with internal users. Therefore, a more comparative study in which other users such as lawyers and ordinary citizens can be incorporated is suggested. Related to internal user satisfaction of the e-justice system, it is explored whether or not internal users are satisfied with their information processing needs, the system’s efficiency, the number of process steps, technical office services, and the system in general. Originality/value The research presents a new developed evaluation model of e-justice system from an internal user perspective. Most evaluation models focus on system-centered evaluation or organizational structure while user-centered evaluation concerning judicial ISs has not been explored yet.

ÖzBilgi teknolojilerinde ve bilgi sistemlerindeki yenilikler işletmeleri de etkisi altına almıştır. Hızlı gelişmeye uyum sağlamak zorunda olan işletmeler, büyük maliyetler ve risklere katlanarak bu sistemleri iş süreçlerine uyumlaştırmaya çalışmaktadır. Bu aşamada karşılaşılan en önemli sorunlardan biri, kullanıcıların bu sistemleri benimseme ve kabulüdür. Bu çalışmanın amacı, işletmelerdeki bilgi sistemleri kullanıcılarının mevcut bilgi sistemlerini kullanma ve kabulünü etkileyen performans beklentisi, çaba beklentisi, sosyal etki ve kolaylaştırıcı şartlar değişkenlerini incelemektir. Önerilen araştırma modeli Birleştirilmiş Teknoloji Kabulü ve Kullanımı Teorisi'ne (UTAUT) dayandırılarak oluşturulmuştur. Çalışma, Eskişehir ve Ankara'daki havacılık imalat sektöründe faaliyet gösteren toplam 10 işletmedeki 298 bilgi sistemi kullanıcısı ile yürütülmüştür.Anahtar Sözcükler: Birleştirilmiş teknoloji kabulü ve kullanımı, performans beklentisi, çaba beklentisi, sosyal etki, kolaylaştırıcı şartlar. Abstract Analysing the Factors Affecting the User Acceptance of Information Systems from the UTAUT PerspectiveThe innovations in information technologies and information systems (IS) also influence the businesses. The firms which need to accommodate these rapid developments try to accord their business processes with these systems by enduring high costs and risks. In this stage, one of the most important problems is the acceptance and the use of information systems by users. The main purpose of this study is to analyze the variables which affect the acceptance and use of information systems such as performance expectancy, effort expectancy, social influence and facilitating conditions. The proposed research model is built on the

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