Main answer: skilled occupations of persons engaging in business activities relating to geodetic and cadastral matters.
Alternative 1: skilled positions of persons engaging in business activities relating to geodetic and cadastral matters.
Alternative 2: skilled persons engaging in business activities relating to geodetic and cadastral records.
Alternative 3: skilled positions of persons engaging in business activities relating to the geodetic and cadastral systems [of the country].
Alternative 4: skilled positions of persons engaging in business activities relating to the geodetic and cadastral record systems.


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Note added at 8 hrs (2017-09-21 07:10:17 GMT)
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https://en.wikipedia.org/wiki/Cadastre
A cadastre (also spelled cadaster), using a cadastral survey or cadastral map, is a comprehensive register of the real estate or real property's metes-and-bounds of a country.[1]
In most countries, legal systems have developed around the original administrative systems and use the cadastre to define the dimensions and location of land parcels described in legal documentation. The cadastre is a fundamental source of data in disputes and lawsuits between landowners.
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http://www.gis.si/en/podrocja/nepremicnine, Geodetic Institute of Slovenia. ((Describes their activities.))