D.1

Conceptual schema

Overview

As depicted in Figure 1, the NGMP Extensions of ISO 19115 comprises an Extension for Military Security Metadata and a set of NGMP Vocabularies.

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Figure 3– Overview of NGMP Extensions of ISO 19115

Military Security Extension

ISO 19115 conceptual schema is not adequately developed for military context, especially in terms of expression of the security constraints. extends ISO 19115 to support the security requirements of NGMP and more generally of the geospatial military community.* The requirement is to be able to express releasability information.

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Figure 4– Conceptual Schema of the Military Security Extension

The concepts depicted in are further detailed in Table 2of D.2.