fig congress 2018 - Role of the LA_ExtValuation Class of ISO 19152 standard for land administration support
Sergei Shavrov, Olga Batura, Miroslav Kobasa
According to the standard ISO 19152:2012 Land Administration Domain Model (LADM) provides the existence of external classes, such as LA_ExtValuation and LA_ExtTaxation. The 7th and 9th FIG commissions have created a working group to prepare a new edition of ISO 19152:2012 with the description of information models of mentioned classes. The first results in this field have been reported on the FIG-2017 working week in Helsinki. The working group’s research is based on semantic structure modulation approach of "Knowledge Organization Systems and Services" (KOS), international spatial data, real estate valuation and measurement standards. Authors agree with this approach, but they also offer to use the fit-for-purpose principle in order to find the solution to the problem and consider the demand perspectives for the E-government services by using the LA_ExtValuation information resource. In the article it is offered to consider the following services: a) services in estimated activity management and its quality monitoring in real time; b) services of using the results of previous real estate valuations for a new estimation of property market values for any date; c) on-line services of automatic express property valuation; d) services in the choice of assessment performers; e) information collecting services for valuation of the unregistered land and real estate objects and so on. It is shown that to achieve such goals it is necessary to solve a number of tasks, for instance: to create the state registration system of estimated activity results and its necessary legal basis; to create national technical system with necessary software, information and organizational support as a part of E-government infrastructure; to develop a monitoring and assessment methodology of evaluation activity quality, certain experts included. The decision of such tasks is relevant for many countries. In our opinion, these services will be demanded by a wide group of users. On one hand, it will allow to control evaluation activities with respect for the principles of publicity and transparency that will undoubtedly increase its quality. On the other hand – this instrument will become irreplaceable instrument for government, banks, realtors, experts in the field of the real estate based on objective property market data.
Only personal, non-commercial use of this document is allowed.