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Recommendations when implementing LADM

In several of the projects that I have participated, I have witnessed that the confusion caused by LADM is not necessarily associated with understanding it as an ISO standard, but with isolating its conceptual scope from its technological mechanization scenario. In other words, how to implement it.

It must be clear that the LADM is not a conventional ISO standard, as it would be a standard for metadata management (ISO-19115), to give an example, or a standard for observations and measurements (ISO-19156). They are the same in the sense that they are applied to a specialized discipline, neither of these two norms will be able to understand a user who is not a geomatic dedicated to the good reading of related domains and geofumed research; even if you know how to make shapefiles or radiate with a total station; training is always necessary to know how to implement an ISO standard.

The issue that an ISO standard requires the mastery of a specialty (business) is what makes the standard ISO-19152 Known as LADM is much more difficult to implement; Because land administration is a matter in which broad specialized disciplines intervene, a career that to date in few universities is served just that dimension.

Knowing LADM is much more than understanding how UML packages, classes, and subclasses work; it is required to know the real rights administration context; both from the Registry side and from Cadastre and cartography, private law, public law, legal and administrative charges. Rather than learning to convert a registration entry into RRR, the LADM requires that an effort be made as simplistic as possible, to standardize what already happens in real life, the terms that they acquire according to the context and national legislation, since This RRR is only the result of a will of the parties interpreted by a notary, who poetically protocolized in a deed, which was accompanied by the information that he half understood from a cadastral certificate, which in turn is an interpretation that the surveyor once made from physical reality, and, after an arduous work of interpretation and mental reminder of requirements, a qualifier ordered that it be transcribed by a clerk, to finally reach the recorder who must try to interpret again, what the clerk wrote, who interpreted the qualifier, who interpreted the notary, who interpreted the will of the parties, to sign in a registration or denial ... there if any of all is cough was wrong in his interpretation!

Modeling is one of the challenges that the geofumados of Beyond Catastro 2014 said back in 1994, which today would be very normal. They were honestly right, and although modeling is an act of pure common sense, they forgot that this is the least common sense in human beings. Modeling involves a negotiation exercise between business professionals: notary, surveyor, geomatist, surveyor, recorder, who must learn a basic UML; and computer users who must step down to understand the real life of what they are trying to automate.

Understanding land management involves knowing about registry principles that have a universal focus, at least in a large part of the Western world:

The Principle of Praying, which prevents a restriction or liability type lien from being automatically incorporated, unless the legislation allows it, the consent principle that establishes that legislation approved by a national congress or a responsible authority can materialize it as an alert or a preventive annotation, the advertising principle that indicates that any user of a good must know that a mining concession or a special regime area affects its domain, use or occupation, the specialty principle that separates the registration competences with cadastre, the principle of registration inscription that implies that a territorial object requires passing through a flow in order to have legal competence ... and so on until converting a legal entity into a system of rules that make it easier for the LADM to stop being a poem with an action plan that is difficult to define whether you have a logical UML profile or a database physical cough; Taking it to a system of policies, rules, processes and procedures requires more than being a poet.

Understanding-the-ladm

After my presentation at the Agustín Codazzi Institute within the framework of the ICDE and my exhibition this week in a Central American country, I will be able to follow up on the subject. For now a few answers in black and white:

Implementing LADM changes the way we register?

Implement it No. Understand it in part. Mechanize it, definitely yes.

Is it necessary for users of substantive area (business) to know the LADM?

Understand it yes. How to implement it ... not necessarily.

Can a new system be developed without adopting LADM?

Yes. But…

Is there a need to change legislation or institutional framework to implement the LADM?

No.

Did LADM really have to become an ISO?

After seeing such disparate tools, the difficulties of registry integration with cadastre, and the high costs of interoperability, it definitely must have been around a long time ago. The LADM helps sustain the business, which never changes, even though the tool must be reconditioned every 10 years.

What are the steps to understanding LADM?

Read Beyond Catastro 2014, understand the cadastral procedure, understand the notarial procedure, understand the registry procedure, understand the special regime legislation, interpret ISO-19152 based on this, learn about experiences, bad and good before reading on ...

What are the steps to adapt a LADM profile?

Take a generic profile, separate it into four quadrants, sit the people from the legal area to build the BA_Unit classes, sit the cadastre people to build the spatial and topographic classes, sit both to build the private law relationships, address legislation of public law and build a file and a procedure, address the other legislation gradually, simplify the source.

What are the steps to implement the LADM in a new system?

Standardize a generic logical profile, the simpler the better. Build a physical profile, apply a tool for transactional and versioning management, adapt processes, develop or adapt the tool with a methodology that preserves the life cycle ... if it is preferable to change the order based on the protocol context of the country.

Where can you see examples of LADM implementation in the Hispanic context?

If you want to see a primitive exercise with the CCDM before it was called the ISO-19152 standard, it is worth seeing SINAP in Honduras. Not only the SURE Unified Registry System technological tool, but also the legislation that gave life to the property law and land use law. In the medium term, it is worth seeing the evolution of SURE, which is an ongoing process under a public-private partnership, possibly with Bolckchain.

If you want to see a municipal tool that complies with the LADM, you can see SIGIT in the Puerto Cortés, Omoa Puerto Barrios community between Guatemala and Honduras, with a client web tool on OpenLayers, detachable cadastral layer and even property registration under a focus of associated center of the national entity. Although it has been difficult for it to be implemented as it should be, the model is of a geofumed amount, which perhaps brings close fruits in a context of El Salvador.

If you want to see a tool for municipal cadastral maintenance with GML/WFS services with a national system, you can see the Municipal SIT in the Association of Municipalities of Honduras, developed on QGIS at the client level, plus other herbs for interoperability even with BentleyMap V8i without Digital Twin.

If you want to see a process in implementation, very promising, almost as God commands, see the current experience of the Institute Agustín Codazzi and the Superintendency of Registry and Notary, Colombia-style platanized. Using INTERLIS to speed up the implementation, a good challenge from opensource and ESRI coexisting and an IDE that acts as a Land Administration node.

If you want to see a promising exercise that will take some time but will finally be achieved with a tropicalized methodology, I suggest following the development of SIICAR2 in Nicaragua.

And if you have doubts ... there is my mail.

Nicaragua

Editor@geofumadas.com

Golgi Alvarez

Writer, researcher, specialist in Land Management Models. He has participated in the conceptualization and implementation of models such as: National Property Administration System SINAP in Honduras, Management Model of Joint Municipalities in Honduras, Integrated Cadastre-Registry Management Model in Nicaragua, Territory Administration System SAT in Colombia . Editor of the Geofumadas knowledge blog since 2007 and creator of the AulaGEO Academy that includes more than 100 courses on GIS - CAD - BIM - Digital Twins topics.

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