The architectural complex of the al-Madrasa al-Halawiyya in Aleppo, Syria, remains one of the most remarkable monuments in the centuries-old city. First founded as the Church of St. Helen in the 6th century to serve as the Cathedral of Byzantine Aleppo, the structure preserves evidence of a complicated building history. For example, the Cathedral was converted into a mosque in 1124; later, parts of the church were integrated into a Madrassa. More recently, damage to the structure due to the war revealed information about Byzantine building methods. This research revisits the building history of the monument by relying on a parametric, Building Information Modelling (BIM) representation to compare the surviving structure with earlier reconstructions. This article addresses the following: (1) A survey of the building's history, topography, and architecture: Over the centuries, al-Madrasa al-Halawiyya has attracted Medieval monks, travellers, brigands, scholars, and more. Their accounts offer exciting opportunities to contextualise structural and functional changes to the complex. (2) An analysis of the historical structure, especially from the Byzantine period: The presented three-dimensional (3D) documentation of the site focused on historical transformations, which the authors then traced and compared by means of BIM to reconstructions proposed by Samuel Guyer (1911) and Michel Écochard (1950). This research demonstrates how a hybrid methodology can be used to establish building phases for comparison with historical and scholarly accounts, revealing new knowledge about building techniques and processes. The presented work started with a field survey of the monument, which was used to generate a hybrid 3D point cloud. Using the point cloud, the Byzantine church was virtually reconstructed and several construction phases were identified. At the same time, Heritage-BIM models were created based on the work of Guyer and Écochard. Finally, the Guyer and Écochard models were compared with the proposed Byzantine reconstruction and point cloud.

叙利亚阿勒颇的哈拉维亚宗教学校 (al-Madrasa al-Halawiyya) 建筑群至今仍是这座拥有数百年历史的城市中最引人注目的古迹之一。该建筑最初建于 6 世纪，当时名为圣海伦教堂，当时是拜占庭阿勒颇大教堂，保留了复杂建筑历史的证据。例如，1124年，大教堂被改建为清真寺；后来，教堂的一部分被整合为宗教学校。最近，战争造成的结构损坏揭示了有关拜占庭建筑方法的信息。这项研究依靠参数化建筑信息模型 (BIM) 表示来重新审视纪念碑的建筑历史，将幸存的结构与早期的重建进行比较。本文讨论以下内容：（1）对该建筑的历史、地形和建筑的调查：几个世纪以来，al-Madrasa al-Halawiyya 吸引了中世纪的僧侣、旅行者、强盗、学者等。他们的叙述提供了令人兴奋的机会来了解综合体的结构和功能变化。(2) 对历史结构的分析，尤其是拜占庭时期的历史结构：所呈现的场地三维 (3D) 文档侧重于历史转变，然后作者通过 BIM 对其进行追踪并与 Samuel Guyer 提出的重建进行比较（1911）和米歇尔·埃科查尔（1950）。这项研究展示了如何使用混合方法来建立建筑阶段，以便与历史和学术记录进行比较，揭示有关建筑技术和流程的新知识。所展示的工作从对纪念碑的实地调查开始，用于生成混合 3D 点云。使用点云，拜占庭教堂被虚拟重建，并确定了几个施工阶段。与此同时，Heritage-BIM 模型是根据 Guyer 和 Écochard 的工作创建的。最后，将 Guyer 和 Écochard 模型与提出的拜占庭重建和点云进行了比较。