The use of 3D city models is now common practice; many large cities have their own digital model. Resilient and sustainable management of these models is necessary in many cases, where an application could evolve over its lifecycle. The complexity of generic modeling standardization is often a limitation for a light and user-friendly usage and further developments. This article aims to propose an alternative, providing a simplified database schema implemented in document-oriented storage. Thanks to the use of the NoSQL store, the focus is on flexibility of the data schemas and thus its clarification. In order to aim attention at the compactness in web development, CityJSON has been chosen for the encoding of the 3D city models. Finally, a full-stack application (persistent storage, consistent edition, and visualization of 3D city models) has been developed to handle the simplified schema and illustrates its capabilities in two practical use cases.

中文翻译：

---

从一致性到灵活性：用于管理 CityJSON 3D 城市模型的简化数据库模式

使用 3D 城市模型现在很普遍；许多大城市都有自己的数字模型。在许多情况下，这些模型的弹性和可持续管理是必要的，其中应用程序可以在其生命周期中发展。通用建模标准化的复杂性通常是轻量级和用户友好的使用和进一步发展的限制。本文旨在提出一种替代方案，提供在面向文档的存储中实现的简化数据库模式。由于使用了 NoSQL 存储，重点是数据模式的灵活性，因此它的澄清。为了关注 Web 开发的紧凑性，选择 CityJSON 来编码 3D 城市模型。最后，一个全栈应用程序（持久存储、一致版本、