ISO 19157:2013 - Geographic Information Data Quality Professional Quiz 01 26Jul25 - Practice Quiz

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Question 1 of 30

When evaluating the fitness for use of a digital elevation model for a critical infrastructure planning project that requires precise vertical positioning to within \\( \\pm 0.5 \\) meters for hydrological analysis, which of the following quality evaluation approaches, as guided by ISO 19157:2013, would be most appropriate to ensure the data meets the application\'s requirements?

Conducting a comprehensive assessment of the DEM's vertical accuracy using a statistically significant set of independently verified ground control points, calculating the Root Mean Square Error (RMSE) of elevation differences, and comparing this RMSE against the \( \pm 0.5 \) meter threshold.

Relying solely on the metadata provided by the data producer, which states a general "good" vertical accuracy without specifying a quantitative measure or the methodology used for its determination.

Performing a visual inspection of the DEM's surface representation for obvious artifacts or anomalies, assuming that any visually apparent errors are the primary indicators of fitness for use.

Comparing the DEM's elevation values with a different, but similarly sourced, DEM from a different provider, focusing on the percentage of agreement in elevation values at common grid points.

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