# General Conventions

This chapter summarize general data conventions which should be considered during the data collection and preparation.

Overview of existing standards

In Table 6 (following page) an overview lists recommended standards with general and geographic data conventions and requirements e.g. on geographic reference systems, units and dimensions.

# EN ISO 19156:2013

This standard defines a conceptual schema for observations and features involved in sampling. It is used in INSPIRE and provides models for the exchange of information describing observation acts and their results, both within and between different scientific and technical communities. A common set of sampling feature types is defined that is classified primarily by topological dimension, as well as samples for ex-situ observations. The schema includes relationships between sampling features (sub-sampling, derived samples).

Table 6: Recommended data conventions (Standard for general and geographic data)