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The attendance process at SMK Swasta Dwitunggal 2 Tanjung Morawa is still carried out manually, potentially causing inefficiency, delays, and inaccuracies in attendance data. This condition results in the difficulty of managing attendance data and less than optimal support for managerial decision-making in the school environment. This study aims to design an Enterprise Architecture (EA) for a school attendance system using the TOGAF Architecture Development Method (ADM) framework. The research method used is a qualitative approach with a case study design. The analysis is carried out through mapping existing conditions (AS-IS) and designing expected conditions (TO-BE) in several TOGAF ADM phases, including business architecture, information system architecture, technology architecture, as well as the Opportunities and Solutions and Migration Planning phases. The results of the study are an enterprise architecture blueprint and a migration roadmap that can serve as guidelines for the gradual implementation of a technology based attendance system. This design is expected to improve the efficiency of attendance management, data accuracy, and support the decision-making process in schools.

Currently, SMAN 3 Sidoarjo does not have an enterprise architecture and integrated data. To increase the utilization of IT and IS at SMAN 3 Sidoarjo, development through enterprise architecture is needed. The essence of this proposal is to plan an architectural effort as an aid to improving IS and IT at SMAN 3 Sidoarjo in the future. The method used is The Open Group Architecture Framework – Architecture Development Method (TOGAF ADM). The information obtained utilizes qualitative research obtained from observations, document studies and interviews. The continued impact of this research is business architecture, data architecture, application architecture, and technology architecture. The selected design content includes application portfolio catalog, application/organization matrix, logical data diagram and computer network diagram. It is believed that this recommendation can be a reference for improving or developing IS and IT at SMAN 3 Sidoarjo to realize the vision and mission of SMAN 3 Sidoarjo through business architecture, information systems architecture and technology architecture..    

Information systems and technology have many important roles for higher education, such as improving quality to support operations, management and decision-making functions. Most of the information systems currently available are not widely available and are not yet integrated with each other. One of them is within the Faculty of Science and Technology (SAINTEK). An information technology integration service is needed to meet user needs in accessing, using, and utilizing information systems. The Open Group Architecture Framework (TOGAF) is a framework for enterprise architecture that provides a comprehensive approach to planning, designing, and implementing enterprise information architecture, adopting 5 phases of the 10 existing phases, namely, Preliminary Phase, Architecture Vision, Business Architecture, Information System Architecture, and Technology Architecture the results of this research are architectures from these 5 phases so that they can provide an overview and ease of information technology integration. 

The Islamic Student Association (HMI) is an umbrella organization with a clear model of being Indonesian and Islamic, providing a platform to train and develop leaders with honesty and quality determination, faith and responsibility. The factors that provide direction within the organization to adopt an Enterprise Architecture (EA) system are aimed at enhancing what the organization needs. Enterprise architecture or what can be called Enterprise Architecture (EA) is a description of the task in question consisting of knowledge, actions, direction from the organization and architectural performance parameters in the description of the design or plan and development of an integrated system. TOGAF (The Open Group Architecture Framework) is a framework that is widely used in creating enterprise or organizational architectures. TOGAF offers methods and tools for creating, running, implementing, and maintaining enterprise architectures in existing systems. The results of this study are in the form of a blueprint that is expected to be useful for organizations as material to assist IT development in HMI.