In this paper, a novel approach to specify application-specific requirements for 3D City Models is proposed. A modular set of geometric and semantic requirements that are based on the OGC CityGML Quality Interoperability Experiment (Coors and Wagner in Fernerkundung und Geoinformation eV 24:288–295, 2015) has been specified. Depending on the purpose of the model, not all requirements are mandatory. For example, if the model is used for visualization only, solid geometry is not required. However, if the same model should be used for analytic purpose such as heating demand simulation, solid geometry is mandatory. A formal definition of a validation plan is proposed in this paper to specify the application-specific set of requirements. This gives the city model manufacturers the possibility to provide proof that their model is usable in certain applications and can certify a certain level of quality. The concept is evaluated with the definition of a validation plan for heating demand simulation. It has been successfully implemented using the Software CityDoctor and SimStadt.

在本文中，提出了一种新颖的方法来指定3D城市模型的特定于应用程序的要求。已指定了一组基于OGC CityGML质量互操作性实验的几何和语义要求（Coers和Wagner in Fernerkundung und Geoinformation eV 24：288–295，2015年）。根据模型的目的，并非所有要求都是强制性的。例如，如果模型仅用于可视化，则不需要实体几何。但是，如果应将同一模型用于分析目的（如供热需求模拟），则必须使用实体几何形状。本文提出了验证计划的正式定义，以指定特定于应用程序的要求。这为城市模型制造商提供了证明其模型在某些应用中可用并可以证明一定质量水平的可能性。通过定义供热需求模拟验证计划对概念进行评估。它已使用软件CityDoctor和SimStadt成功实现。