Enhancing Sistem Komunikasi Markas (Siskomma) in IS/IT Architecture Planning to Face Modern Warfare: A TOGAF Based Approach for National Defense Data Integration in the Indonesian Army

In the era of modern warfare, effective Information Systems (IS) and Information Technology (IT) architecture planning are essential for the Indonesian Army to maintain a competitive edge. This paper presents a comprehensive approach to IS/IT architecture planning, focusing on integrating national defense data within the Indonesian Army organization. Utilizing the TOGAF (The Open Group Architecture Framework) approach, the research aligns strategic objectives with operational requirements. Through a detailed assessment of the current landscape, including internal and external factors and strategic goals, this study develops a robust IS/IT architecture plan aimed at enhancing decision-making, operational efficiency, and readiness in facing modern warfare challenges that aligned with the Command, Control, Computers, Communications, Cyber, Intelligence, Surveillance, and Reconnaissance (C5ISR) function. The research emphasizes that, in facing modern warfare situations, soldiers must first transform themselves into modern soldiers by operating within a modern daily service environment. Introduction and adaptation to technology embedded in daily activity-based service life at the base is a critical element addressed through the scope of the Headquarters Communication System (Sistem Komunikasi Markas - Siskomma) design. This system is one of the four major components of the Indonesian Army Communication and Electronics System (Sistem Komunikasi dan Elektronika - Siskomlek), which forms the core IS/IT architecture of the Indonesian Army. The proposed approach offers a systematic and holistic framework for IS/IT architecture planning in the Indonesian Army, potentially serving as a model for other military organizations confronting similar challenges.