Land administration domain model is an ISO standard now (original) (raw)
Related papers
Land Use Policy, 2015
This article is the introduction to a themed issue on the Land Administration Domain Model, the ISO 19152:2012 international standard. The Land Administration Domain Model (LADM) facilitates the efficient setup of land administrations. It can function as the core of any land administration system. LADM is flexible, widely applicable and functions as a gathering point of a state-of-the-art international knowledge base on this theme, reflected in aspects such as full versioning/history, integration with legal and spatial source documents, a range of 2 Dimensional and 3 Dimensional (2D/3D) geometry and topology options, unique identifiers, and explicit quality indicators (metadata). It can be aligned to the global agenda where land administration is concerned. This paper describes the context and the actual standards development of the LADM. Further, some future trends in the domain and the maintenance of the standard is discussed. This completes the scene and provides the background for the papers in the themed issue
The Land Administration Domain Model Standard
LADM is a international standard for the land administration domain. It will stimulate the development of software applications and will accelerate the implementation of proper land administration systems that will support sustainable development. The LADM covers basic information-related components of land administration (including those over water and land, and elements above and below the surface of the earth); The standard provides an abstract, conceptual model with three packages related to: parties (people and organizations); basic administrative units, rights, responsibilities, and restrictions (ownership rights); spatial units (parcels, and the legal space of buildings and utility networks); with sub packages for spatial sources (surveying), and spatial representations (geometry and topology). This paper summarizes the motivation, requirements and goals for developing LADM. Further, the standard itself is described, including the development process and potential future maintenance. Despite being a very young standard, 'born' on 1 December 2012, it is already possible to observe some of the impact of LADM and some examples of this are given in the paper.
The Land Administration Domain Model
Land Use Policy, 2015
Societal drivers including poverty eradication, gender equality, indigenous recognition, adequate housing, sustainable agriculture, food security, climate change response, and good governance, influence contemporary land administration design. Equally, the opportunities provided by technological development also influence design approaches. The Land Administration Domain Model (LADM) attempts to align both: the data model provides a standardised global vocabulary for land administration. As an international standard it can stimulate the development of software applications and may accelerate the implementation of land administration systems that support sustainability objectives. The LADM covers basic information-related components of land administration including those over land, in water, below the surface, and above the ground. The standard is an abstract, conceptual model with three packages related to: parties (people and organisations); basic administrative units, rights, responsibilities, and restrictions (ownership rights); spatial units (parcels, and the legal space of buildings and utility networks) with a sub package for surveying, and representation (geometry and topology). This paper examines the motivation, requirements and goals for developing LADM. Further, the standard itself is described and potential future maintenance. Despite being a very young standard, 'born' on 1st December 2012, it is already possible to observe some of the impact of LADM: examples are provided.
2020
This paper presents an overview of the last (sometimes minor) modifications from DIS to FDIS. Most modifications are improvements to increase the flexibility of the LADM, e.g. the relationships between rights and arbitrary sets of spatial units (parcels). Consequently, with more flexibility, the notion of conformance testing has been adjusted. Also, the ever increasing adoption of the LADM is illustrated via a number of new country profiles. This clearly shows the need, and practically, the growing support for the LADM over the past years (in addition to the ever growing number of positive votes for the LADM within ISO).
Land administration standardization with focus on surveying and spatial representations
This paper will focus on (cadastral) geodata acquisition, based on field surveys in the context of the ISO 19152 Draft International Standard (DIS) Land Administration Domain Model (LADM). Spatial source documents allow documentation of field observations. Besides geodata, this also includes administrative data; e.g. names of right holders participating in the field, or local conditions. Original observations related to adjudication, and all geodata maintenance, because of land transactions, physical planning, establishment of mortgage, etc. need to be documented. This is for quality, consistency and integrity reasons. The documentation is the basis for authenticity of the administrative and geodata. In case of cadastral geodata this documentation is often referred to as "evidence from the field". Data acquisition can be based on variety of approaches (low cost / high tech), which not always involves conventional terrestrial surveying. Observations may require transformations and adjustments, or other corrections (e.g. rectangulation), before the cadastral geodata for spatial units can be edited. Those transformations and adjustments can be documented again. All different types of the geodata acquisition can be represented in LADM. However, procedures for data acquisition itself are not included in the standard. Quality aspects of the source data can be represented based on DQ_Element i types from
Iso 19152 – the Land Administration Domain Model
2011
Focus of this paper is on the Land Administration Domain Model which is under development as an International Standard at ISO. This development is an initiative of the International Federation of Surveyors – FIG. The International Standard is expected to be published in 2012. Why is this development important? What is the scope of the standard, what is included and what is not included? There will be a brief overview of the contents of the standard with attention to its core packages and to the relation to other standards (such as data quality aspects and surveying). The idea is that not only the field-survey based, high accurate, cadastral maps are supported by this standard. This would otherwise mean that many approaches would be excluded and the world is absolutely not waiting for that. On the contrary, many high accurate approaches are slow and expensive and proven not to work. A specialization of the standard, the so called “Social Tenure Domain Model (STDM)” will be introduced...
The road to a standard land administration domain model, and beyond
2011
The Land Administration Domain Model (LADM) is a Draft International Standard (ISO DIS 19152) and in January 2011 was distributed by the ISO central secretariat for a five month voting and commenting time interval. If everything goes as planned, ISO 19152 will be an International Standard (IS) by 2012. In this paper the road towards this standard is briefly described.
INTEROPERABLE DOMAIN MODELS: THE ISO LAND ADMINISTRATION DOMAIN MODEL LADM AND ITS EXTERNAL CLASSES
ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2011
This paper provides a brief overview of one of the first spatial domain standards: a standard for the domain of Land Administration (LA). This standard is in the draft stage of development now (May 2011). The development of domain standards is a logical follow up after domain-independent standards, which are available now in the area of geo-information processing. The Land Administration Domain Model (LADM) provides a conceptual schema with three basic packages with a limited scope: parties, rights (and restrictions/responsibilities) and spatial units. Certain classes are outside the scope but can be referred to. An important aspect in the development of a coherent (Spatial) Information Infrastructures -(S)II is that the various standardized domain models are reusing the same model patterns as solutions for the same situations. In this paper the LADM and its external classes are briefly presented. It outlines the advantages of standardized domain models in the development of (S)II and the importance of LA as an authentic register, in relation to other authentic registers, such as for addresses, population, companies, topography, or buildings. This will be illustrated with the Dutch case of authentic registers.
2012
SUMMARY This paper will focus on (cadastral) geodata acquisition, based on field surveys in the context of the ISO 19152 Draft International Standard (DIS) Land Administration Domain Model (LADM). During the development of LADM existing standards have been re-used as far as possible. Original observations related to adjudication, and all geodata maintenance, because of land transactions, physical planning, establishment of mortgage, etc. need to be documented. This is for quality, consistency and integrity reasons. The documentation is the basis for authenticity of the administrative and geodata. In case of cadastral geodata this documentation is often referred to as "evidence from the field".Data acquisition can be based on variety of approaches (low cost / high tech), which not always involves conventional terrestrial surveying. Observations may require transformations and adjustments, or other corrections (e.g. rectangulation), before the cadastral geodata for spatial u...
2016
This paper will focus on (cadastral) geodata acquisition, based on field surveys in the context of the ISO 19152 Draft International Standard (DIS) Land Administration Domain Model (LADM). During the development of LADM existing standards have been re-used as far as possible. Original observations related to adjudication, and all geodata maintenance, because of land transactions, physical planning, establishment of mortgage, etc. need to be documented. This is for quality, consistency and integrity reasons. The documentation is the basis for authenticity of the administrative and geodata. In case of cadastral geodata this documentation is often referred to as "evidence from the field".Data acquisition can be based on variety of approaches (low cost / high tech), which not always involves conventional terrestrial surveying. Observations may require transformations and adjustments, or other corrections (e.g. rectangulation), before the cadastral geodata for spatial units can...