This study aims to understand the determinant of the employee’s intention to use information system within the framework of the Technology Acceptance Model (TAM) and Information System Success Model (ISSM). This paper also aims to examine the influence of ISSM dimension on the perceived usefulness and the perceived ease of use. The research respondents were 248 employees of Universitas Negeri Semarang (UNNES) who are users of the Financial Information System (SIKEU). Data was obtained using a questionnaire that was distributed online via Google form. The data analysis method used is Structural Equation Model (SEM) analysis using the Warp-PLS software. The results showed that the dimensions of TAM (perceived ease of use and perceived usefulness) had a positive and significant influence on the employee’s intention to use SIKEU. The ISSM dimension (system quality and information quality) also had a significant influence, although other ISSM dimensions (service quality) had not been proven to have a significant influence on the employee’s intention to use SIKEU. Moreover, the results showed that the employee’s intention to use is a determinant of SIKEU’s actual usage. Perceived ease of use was significantly determined by system quality, information quality, and service quality. In addition, the perceived usefulness was significantly determined by system quality and information quality.

Abstract
1. Introduction
2. Literature Review and HypothesesDevelopment
    2.1. The Concept of Technology Acceptance Model(TAM) and Information System Success Model(ISSM)
    2.2. Understanding Employee’s Intention to UseSIKEU Using TAM
    2.3. Understanding the Employee’s Intention toUse SIKEU Using ISSM
3. Research Methods
4. Result and Discussion
    4.1. Understanding the Employee’s Intention toUse SIKEU Using TAM
    4.2. Understanding the Employee’s Intention toUse SIKEU Using ISSM
5. Conclusion
References

• S. MARTONO(Faculty of Economics, Universitas Negeri Semarang) Corresponding Author
• Ahmad NURKHIN(Faculty of Economics, Universitas Negeri Semarang)
• Hasan MUKHIBAD(Faculty of Economics, Universitas Negeri Semarang)
• Indah ANISYKURLILLAH(Faculty of Economics, Universitas Negeri Semarang)
• Christian Wiradendi WOLOR(Faculty of Economics, Universitas Negeri Jakarta)