Coding system

Relationship

DIGEST

Digital Geographic Information Exchange Standard (DIGEST)

Part 4 of DIGEST is the feature and attribute coding catalogue (FACC).  FACC is a comprehensive coding scheme for features, their attributes and attribute values.

Some of the ECs in this International Standard are similar concepts to features in FACC. Some of the EAs and EEs in this International Standard are similar concepts to attributes and attribute enumerants in FACC.

IHO

International Hydrographic Organization (IHO)

S-57 is the International Hydrographic Organization Transfer Standard for Digital Hydrographic Data. It consists of a feature dictionary, a data model, and an exchange format called DX-90. S-57 is an object-based data structure; its feature dictionary describes the geometry and attributes of all features that may appear on an electronic navigation chart.

Some of the ECs in this International Standard are similar concepts to objects in S-57. Some of the EAs and EEs in this International Standard are similar concepts to attributes and attribute enumerants in S-57.

The WMO code form FM 94 BUFR is a binary code designed to represent, employing a continuous binary stream, any meteorological data. The WMO code form FM 92-VIII Ext. GRIB  is a general purpose, bit-oriented data exchange format designed as an efficient vehicle for transmitting and storing large volumes of gridded data. Both incorporate standard mechanisms to define data categories (Table A) and classifications of elements (Table B) [WMO306].

Some of the EAs in this International Standard are similar concepts to the parameters in GRIB.

Structurally, the JMCDM is comprised of four branches: observation data, derived data, climatological data, and other data of astrometric origin. The JMCDM and its supporting encyclopedia is a component set of views within the US DoD data model (DDM). 

Some of the ECs in this International Standard are similar concepts to the entities in the JMCDM. Some of the EAs and EEs in this International Standard are similar concepts to the entities in the JMCDM.

The UCDM includes a superset of the NIMA profile of FACC.

Some of the ECs, EAs and EEs in this International Standard are similar concepts to the entities in the UCDM.

Part 2 of the SDTS specifically addresses the need for common definitions of spatial features, in particular both topographic and hydrographic. Annex A contains definitions for standard entity type terms. Annex B contains definitions for standard attribute terms.

Some of the ECs, EAs and EEs in this International Standard are similar concepts to the entity type and attribute terms in SDTS.

The OpenGIS specification does not define what is meant by a feature type (e.g., which represents a road). OpenGIS provides the standards for a feature dictionary, so that each community can develop its own common dictionary of geospatial feature types and attributes. 

This International Standard may be viewed as a collection of dictionaries developed by one community.

ISO TC 211 is developing standards in the field of digital geographic information. In particular, DIS 19110 defines a methodology for creating geographic object and attribute and relationship catalogs.

This methodology may be applicable to specifying EDCS profiles.