Abstract. A new version of the Land Administration Domain Model (LADM) has been discussed and is under further development in ISO/TC 211 on Geographic Information. One of the extending parts is where the model can accommodate complex and advanced marine properties and cadastral objects. Currently, the fundamentals part of this new version (LADM Edition II) has been examined by the committee, and a few elements need to be considered, especially for marine space georegulation. Based on the possibility of embedding LADM with marine cadastre as agreed by several researchers, the concept of marine cadastre data model within land administration context has been anticipated in many countries (e.g., Canada, Greece, Turkey, Australia, and Malaysia). Part of the research focused on constructing and developing the appropriate data models to manage marine spaces and resources most effectively. Several studies have attempted to establish a conceptual model for marine cadastre in Malaysia. However, there is still no acceptable marine data model. Thus, this paper proposed a marine data model for Malaysia based on the international standard, LADM. The approach, by definition, can be applied to the marine environment in terms of controlling and modelling a variety of rights, responsibilities, and restrictions. The Unified Modelling Language (UML) application was utilized to construct the conceptual and technical models via Enterprise Architect as part of the validation process. The data model was constructed within the marine's concept in Malaysia to meet international standards. The features of the data model were also discussed in the FIG workshop (9th LADM International Workshop 2021). The experiment on the data model also includes 3D visualization and simple query. ملخص. تمت مناقشة نسخة جديدة من نموذج مجال إدارة الأراضي (LADM) وهي قيد التطوير في ISO/TC 211 بشأن المعلومات الجغرافية. أحد الأجزاء الممتدة هو المكان الذي يمكن أن يستوعب فيه النموذج الخصائص البحرية المعقدة والمتقدمة والأجسام المساحية. في الوقت الحالي، درست اللجنة الجزء الأساسي من هذه النسخة الجديدة (LADM Edition II)، ويجب النظر في بعض العناصر، خاصة بالنسبة للتنظيم الجغرافي للمساحة البحرية. استنادًا إلى إمكانية تضمين LADM مع السجل العقاري البحري على النحو المتفق عليه من قبل العديد من الباحثين، تم توقع مفهوم نموذج بيانات السجل العقاري البحري في سياق إدارة الأراضي في العديد من البلدان (على سبيل المثال، كندا واليونان وتركيا وأستراليا وماليزيا). ركز جزء من البحث على بناء وتطوير نماذج البيانات المناسبة لإدارة المساحات والموارد البحرية بشكل أكثر فعالية. حاولت العديد من الدراسات إنشاء نموذج مفاهيمي للسجل العقاري البحري في ماليزيا. ومع ذلك، لا يوجد حتى الآن نموذج بيانات بحرية مقبول. وبالتالي، اقترحت هذه الورقة نموذج بيانات بحرية لماليزيا بناءً على المعيار الدولي، LADM. يمكن تطبيق هذا النهج، بحكم تعريفه، على البيئة البحرية من حيث مراقبة ونمذجة مجموعة متنوعة من الحقوق والمسؤوليات والقيود. تم استخدام تطبيق لغة النمذجة الموحدة (UML) لبناء النماذج المفاهيمية والتقنية عبر Enterprise Architect كجزء من عملية التحقق من الصحة. تم بناء نموذج البيانات ضمن مفهوم البحرية في ماليزيا لتلبية المعايير الدولية. كما نوقشت ميزات نموذج البيانات في ورشة عمل FIG (ورشة العمل الدولية التاسعة لـ LADM 2021). تتضمن التجربة على نموذج البيانات أيضًا التصور ثلاثي الأبعاد والاستعلام البسيط. Abstract. A new version of the Land Administration Domain Model (LADM) has been discussed and is under further development in ISO/TC 211 on Geographic Information. One of the extending parts is where the model can accommodate complex and advanced marine properties and cadastral objects. Currently, the fundamentals part of this new version (LADM Edition II) has been examined by the committee, and a few elements need to be considered, especially for marine space georegulation. Based on the possibility of embedding LADM with marine cadastre as agreed by several researchers, the concept of marine cadastre data model within land administration context has been anticipated in many countries (e.g., Canada, Greece, Turkey, Australia, and Malaysia). Part of the research focused on constructing and developing the appropriate data models to manage marine spaces and resources most effectively. Several studies have attempted to establish a conceptual model for marine cadastre in Malaysia. However, there is still no acceptable marine data model. Thus, this paper proposed a marine data model for Malaysia based on the international standard, LADM. The approach, by definition, can be applied to the marine environment in terms of controlling and modelling a variety of rights, responsibilities, and restrictions. The Unified Modelling Language (UML) application was utilised to construct the conceptual and technical models via Enterprise Architect as part of the validation process. The data model was constructed within the marine's concept in Malaysia to meet international standards. The features of the data model were also discussed in the FIG workshop (9th LADM International Workshop 2021). The experiment on the data model also includes 3D visualization and simple query. Résumé Une nouvelle version du modèle de domaine de l'administration foncière (LADM) a été discutée et fait l'objet d'un développement ultérieur dans la norme ISO/TC 211 sur l'information géographique. L'une des pièces d'extension est l'endroit où le modèle peut accommoder des propriétés marines complexes et avancées et des objets cadastraux. Actuellement, la partie fondamentale de cette nouvelle version (LADM Edition II) a été examinée par le comité, et un certain nombre d'éléments ont besoin d'être pris en compte, en particulier pour la géorégulation spatiale marine. Based on the possibility of embedding LADM with marine cadastre as agreed by several researchers, the concept of marine cadastre data model within land administration context has been anticipated in many countries (e. g., Canada, Greece, Turkey, Australia, and Malaysia). Part of the research focused on constructing and developing the appropriate data models to manage marine spaces and resources most effectively. Several studies have attempted to establish a conceptual model for marine cadastre in Malaysia. However, there is still no acceptable marine data model. Thus, this paper proposed a marine data model for Malaysia based on the international standard, LADM. L'approche, par définition, peut être appliquée à l'environnement marin dans les termes de contrôle et de modélisation d'une variété de droits, de responsabilités et de restrictions. L'application Unified Modelling Language (UML) a été utilisée pour construire les modèles conceptuels et techniques via Enterprise Architect en tant que partie du processus de validation. The data model was constructed within the marine' s concept in Malaysia to meet international standards. The features of the data model were also discussed in the FIG workshop (9th LADM International Workshop 2021). L'expérience sur le modèle de données inclut également la visualisation 3D et une requête simple. Abstract. A new version of the Land Administration Domain Model (LADM) has been discussed and is under further development in ISO/TC 211 on Geographic Information. Una de las partes extendidas es donde el modelo puede acomodar complejos y propiedades marinas avanzadas y objetos catastrales. Currently, the Fundamentals part of this new version (LADM Edition II) has been examined by the committee, and a few elements need to be considered, especially for marine space georegulation. Based on the possibility of embedding LADM with marine cadastre as agreed by several researchers, the concept of marine cadastre data model within land administration context has been anticipated in many countries (e.g., Canada, Greece, Turkey, Australia, and Malaysia). Parte de la investigación centrada en la construcción y el desarrollo de los modelos de datos apropiados para la gestión de los espacios marinos y los recursos de la forma más eficaz. Several studies have attempted to establish a conceptual model for marine cadastre in Malaysia. However, there is still no acceptable marine data model. Thus, this paper proposed a marine data model for Malaysia based on the international standard, LADM. The approach, by definition, can be applied to the marine environment in terms of controlling and modelling a variety of rights, responsibilities, and restrictions. The Unified Modelling Language (UML) application was utilized to construct the conceptual and technical models via Enterprise Architect as part of the validation process. The data model was constructed within the marine 's concept in Malaysia to meet international standards. The features of the data model were also discussed in the FIG workshop (9th LADM International Workshop 2021). The experiment on the data model also includes 3D visualization and simple query.