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Abstract

Compet-Terra is carrying out QA (Quality Assurance) services for the Hungarian Agriculture and Regional Development Agency. Quality control of the LPIS is one of the important QA duties. The LPIS data set is updated yearly according to the cycles of agricultural subsidies. Compet-Terra elaborated an Open Source Software based checking method that could be adopted by the client without the financial expense of software.

QuantumGIS (as the primary tool), gvSIG, and LibreOffice were used for the quality control of the LPIS. Four primary quality types were checked: (1) the land parcel attributes, (2) the areas of the polygons, (3) the completeness of the content and (4) the topological quality. For these investigations topological GIS functions and database management functions were used. The most important functions were topological difference calculation, polygon area calculation and geometry validity check. Complex procedures were also carried out with proprietary tools to compare the results and the run-time performances.

The result of the adoption of OSS GIS tools for LPIS checking was positive. All the planned procedures could be implemented using OSS GIS. OSS tools proved to be robust, reliable, userfriendly and performed well.

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Bateman R M 1985: Log Quality Control. IHRDC Publishers, Boston Log Quality Control Cserepes L, Drahos D, Salát P 1994: In: Transactions of

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Central European Geology
Authors: Ubul Fügedi, László Kuti, Daniella Tolmács, Ildikó Szentpétery, Barbara Kerék, Tímea Dobos, András Sebők, and Rita Szeiler

Reimann, C., GEMAS Project Team 2009: The Eurogeosurveys Geochemical Mapping of Agricultural and Grazing Land Soil Project (GEMAS) - Evaluation of Quality Control Results of Aqua Regia Extraction Analysis. NGU Report 2009.049. Geological Survey of Norway

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) The next complex step in the workflow is SPC (Fig.  2 ). This is a family of methods to monitor and control (quality control) a process using statistical methods ( Shewhart 1931 ; Montgomery 1997 ; Oakland 2003 ). SPC can be applied to any

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are the raw data freely available nor are the results submitted to any consequent or strict quality assessment / quality control processes ( Somlyódy 2018 ). Many parts of the water quality monitoring system have been subjected to

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-FEVISz). Unfortunately, neither are the raw data freely available nor are the results submitted to any consequent or strict quality assessment / quality control processes ( Somlyódy 2018 ). Many parts of the water quality monitoring system have been subjected to

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Central European Geology
Authors: János Haas, Tamás Budai, István Dunkl, Éva Farics, Sándor Józsa, Szilvia Kövér, Annette E. Götz, Olga Piros, and Péter Szeitz

pre-ablation. The carrier gases were He and Ar. Analytes of 238 U, 235 U, 232 Th, 208 Pb, 207 Pb, 206 Pb, mass204, and 202 Hg were measured by the ICP-MS. The age calculation and quality control are based on the drift and fractionation

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Universiteit Brussel, Belgium; Continental Automotive Hungary Kft, Hungary; Trigo Quality Control and Quality Services, Hungary. Research grants given to authors and supporting different phases of this study are as follows: Bijzonder Onderzoeksfond – Ghent

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: Accuracy Aspects and Quality Control, Helsinki, 540--551. Proceeding of the Symposium Mathematical Models: Accuracy Aspects and Quality Control 540 551

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61 175 181 Gašperič P 2007: Acta Geogr. Slov. , 47, No. 2, 245-273. Giordano A, Veregin H 1994: Quality control in

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