Spatial data in a Land Administration (LA) establish a fundamental geospatial data theme (see UN GGIM, 2018) and the integrated geospatial information framework for any Spatial Data Infrastructure (SDI). Domain-specific standards, an integral component of the SDI, play an essential role to represent the semantics of domains, specify links between distributed registries and databases, and stimulate the development and implementation for Land Administration Systems (LAS). As an international descriptive standard providing an abstract conceptual schema, the ISO 19152:2012 Land Administration Domain Model (LADM) has been used and is being used as a reference for the implementation of LAS. Various approaches have been used for the LADM implementation that includes elaborating (via a country profile) and realizing a technical model suitable for the implementation (van Oosterom and Lemmen, 2015).

LADM focuses on a specific function of LA that is interested in Rights, Responsibilities and Restrictions (RRR) affecting land, and the geometrical components thereof. The land value function of LA is considered outside the scope in the first edition. Recently, for extending the flexible and modular basis of the LADM, a valuation information model is developed for the specification of valuation information maintained by public authorities. It identifies the links between property valuation and the other LA registries and databases (e.g., cadastre, land registry, building and dwelling registries) that may enable interoperability across systems. The conceptual schema of the model provides a common basis to direct the development of local and national valuation databases and information technology products and services, following an approach similar to the LADM implementation. The proposed LADM Valuation Information Model is on the agenda of the development of the second edition of LADM within ISO/TC211.

The operability of the newly proposed conceptual model needs to be evaluated through technical implementation. This paper describes the development of a prototype for the implementation of the LADM Valuation Information Model and assesses its operability through a case study for Turkey. The primary aim of the paper is to test the capabilities of the LADM Valuation Information Model using the required and produced data in recurrent valuation processes, but not to build a specific information management system for Turkey. As the implementation of a LADM compliant prototype initially requires the development of a country profile at conceptual level, methodologies applied for LADM profile development are examined and then a Turkish LADM Valuation Information Model country profile is proposed using the Conceptual Schema Languages (CSL) of the Unified Modelling Language (UML) and INTERLIS. INTERLIS is a formal language as well as a set of software tools that support LADM implementations. Subsequently, approaches and tools used in the LADM implementation are investigated and utilized for the automated transformations from the country profile to several technical models. In this context, the article presents the experiences gained during the implementations. Moreover, strategies for implementing and managing property valuation information more efficiently (e.g. bi-temporal aspects of valuation information management) are also studied and applied to the implementation. The generated technical models are then populated with sample datasets related to recurrent property valuation including the geometries of valuation units, as well as valuation information covering several years. The developed prototype is then tested through a number of queries to assess whether the LADM Valuation Information Model fulfils information management needs of recurrent valuations. The main contribution of this paper is to provide a holistic approach on how to develop an LADM conformant prototype for managing property valuation information.

土地管理局（LA）中的空间数据为任何空间数据基础设施（SDI）建立了基本的地理空间数据主题（请参阅UN GGIM，2018年）和集成的地理空间信息框架。特定于域的标准是SDI的组成部分，在表示域的语义，指定分布式注册表和数据库之间的链接以及刺激土地管理系统（LAS）的开发和实施方面起着至关重要的作用。作为提供抽象概念图式的国际描述性标准，已使用ISO 19152：2012土地管理领域模型（LADM），并将其用作LAS实施的参考。

LADM专注于LA的特定功能，该功能对影响土地的权利，责任和限制（RRR）及其几何组成感兴趣。在第一版中，LA的土地价值功能被认为是超出范围的。最近，为了扩展LADM的灵活和模块化基础，开发了一种评估信息模型，用于规范由公共机构维护的评估信息。它确定了财产评估与其他LA注册表和数据库（例如地籍，土地注册，建筑和居住注册表）之间的链接，这些链接可以实现跨系统的互操作性。该模型的概念图式为指导地方和国家评估数据库以及信息技术产品和服务的开发提供了通用基础，遵循类似于LADM实施的方法。拟议的LADM评估信息模型在ISO / TC211内第二版LADM的开发议程中。

新提出的概念模型的可操作性需要通过技术实施来评估。本文描述了用于实施LADM评估信息模型的原型的开发，并通过针对土耳其的案例研究评估了其可操作性。本文的主要目的是在经常性估值过程中使用所需和生成的数据来测试LADM估值信息模型的功能，而不是为土耳其构建特定的信息管理系统。由于最初要实现符合LADM的原型，因此需要在概念级别上制定国家/地区简介，研究了用于LADM概要文件开发的方法，然后使用统一建模语言（UML）和INTERLIS的概念模式语言（CSL）提出了土耳其LADM评估信息模型国家概要文件。INTERLIS是一种正式语言，也是支持LADM实现的一组软件工具。随后，调查了LADM实施中使用的方法和工具，并将其用于从国家概况到几种技术模型的自动转换。在这种情况下，本文介绍了在实施过程中获得的经验。此外，还研究了用于更有效地实施和管理财产评估信息的策略（例如，评估信息管理的双向过程）并将其应用于实施。然后，将生成的技术模型填充与与经常性房地产评估有关的样本数据集，其中包括评估单位的几何形状以及涵盖数年的评估信息。然后，通过许多查询对开发的原型进行测试，以评估LADM评估信息模型是否满足经常性评估的信息管理需求。本文的主要贡献是为如何开发符合LADM要求的原型来管理财产评估信息提供了一种整体方法。然后，通过许多查询对开发的原型进行测试，以评估LADM评估信息模型是否满足经常性评估的信息管理需求。本文的主要贡献是为如何开发符合LADM要求的原型来管理物业评估信息提供了一种整体方法。然后，通过许多查询对开发的原型进行测试，以评估LADM评估信息模型是否满足经常性评估的信息管理需求。本文的主要贡献是为如何开发符合LADM要求的原型来管理财产评估信息提供了一种整体方法。