Abstract:
The event management industry faces significant challenges due to the complexity 
of events and the lack of integrated systems. These conditions lead to inaccurate 
data, slow processes, and decision-making obstacles that reduce professionalism 
and competitiveness. PT. Sekarmenuh Eventama, as the case study, encounters 
issues such as the absence of a collaboration platform for approving event budgets 
(RAB), non-digitalized information, and limited real-time reporting. 
This study aims to design an information technology architecture based on 
Enterprise Architecture (EA) using the TOGAF methodology to support event 
management systems. The focus is on integrating the planning, execution, and 
evaluation processes while developing an effective EA framework. The research 
adopts a qualitative approach through a case study in Denpasar, Bali. Data were 
collected through interviews, observations, and literature studies. System design 
follows the TOGAF ADM framework up to Phase E (Opportunities and Solutions). 
The results produce an integrated IT architecture blueprint encompassing business, 
application, data, and technology architectures. The proposed business process 
model minimizes manual tasks and provides application functions for participant 
registration, vendor management, reporting, and event analysis. TOGAF proves 
effective in improving data consistency and accelerating decision-making, although 
system integration and IT infrastructure limitations remain implementation 
challenges.