Environmental Data Coding Specification

6 EDCS attributes

6.1 Introduction

6.1.1 Table of contents

6 EDCS attributes	6.2 EDCS Attribute Dictionary
6.1 Introduction	6.3 EDCS Attribute Value Characteristic Dictionary
6.1.1 Table of contents	6.4 EDCS Attribute Enumerant Dictionary
6.1.2 Overview

Table 6.2 -- Table of tables

Table 6.1 -- Table of contents	Tables 6.5-6.30 -- EDCS Attribute Dictionary entries	Table 6.35 -- EDCS Attribute Enumerant Dictionary tables
Table 6.2 -- Table of tables	Table 6.31 -- EDCS Attribute Value Characteristic Dictionary entry fields	Tables 6.36-6.61 -- EDCS Attribute Enumerant Dictionary entries
Table 6.3 -- EDCS Attribute Dictionary entry fields	Table 6.32 -- EDCS Attribute Value Characteristic Dictionary, quantitative entries
Table 6.4 -- EDCS Attribute Dictionary tables	Table 6.33 -- EDCS Attribute Enumerant Dictionary, qualitative entries

This International Standard uses EDCS attributes to describe the state of environmental objects. Within the EDCS Attribute Dictionary, each EA has a unique definition and is denoted by both a unique EAL and a unique EAC. Each EA has an EDCS attribute value type and has an associated EQ if the EDCS attribute value type is REAL.

The EDCS Attribute Dictionary is presented in 26 tables according to the letters of the alphabet. Each table consists of EAs with the same first character of their EALs. Within each table, the EAs are ordered alphabetically by the EAL.

This International Standard does not associate any EA with any EC(s).

This International Standard uses EDCS attribute value characteristics to specify information concerning the values of EAs. Within the EDCS Attribute Value Characteristic Dictionary, each EV has a unique definition and is denoted by both a unique EVL and a unique EVC.

The EDCS Attribute Value Characteristic Dictionary is presented in single table with the EVs in a natural order.

For each EA whose EDCS attribute value type is ENUMERATION, this International Standard defines the elements of the set of values of that EA as EDCS attribute enumerants. Each EE has a definition and is denoted by both an EEL and an EEC. The definition, EEL, and EEC are unique only within the context of that EA.

The EDCS Attribute Enumerant Dictionary is presented in 26 tables according to the letters of the alphabet. Each table consists of EAs with the same first character of their EALs, however, only EAs whose EDCS attribute value type is ENUMERATION are included. Within each table, the EAs are ordered alphabetically by their EALs, with each EA followed by its associated EEs. The EEs for each EA are presented in a natural order.

6.2 EDCS Attribute Dictionary

The EAs specified in this International Standard are presented in Tables 6.5 through 6.30 and in Annex D in Tables D.2 through D.27. The specification of each field of an EDCS Attribute Dictionary entry is presented in Table 6.3. The first five fields are found in Tables 6.5 through 6.30. The label field and the last three fields are found together in Annex D in Tables D.2 through D.27. The EALs in Tables 6.5 through 6.30 are hyper-linked to the corresponding entries in Tables D.2 through D.27.

Table 6.3 -- EDCS Attribute Dictionary entry fields

Field	Specification	Location
Label	The EAL (see 4.3.2 Label).	Clause 6
Definition	The definition of the EA (see 4.3.1 Definition).	Clause 6
Attribute value type	The EDCS attribute value type (see 4.5.2 EDCS attribute value types).	Clause 6
Unit equivalence class label	If the EDCS attribute value type is REAL, this field contains an EQL (see 4.10 EDCS unit equivalence classes). The presentation of this field is grey for all other EDCS attribute value types.	Clause 6
Code	The EAC (see 4.3.3 Code).	Clause 6
Groups	The EGLs of the EGs in EO GENERAL of which this EA is a member (see 4.12 EDCS groups).	Annex D
Reference type	The type of the references (see 4.3.4.2 Reference types).	Annex D
References	The references for this EA (see 4.3.4 References and reference type).	Annex D

The EDCS Attribute Dictionary entries are ordered alphabetically by the first letter of the EAL. This presentation is reflected in the structure of Table 6.4.

Table 6.4 -- EDCS Attribute Dictionary tables

Table 6.5 EDCS attributes whose label begins with A	Table 6.18 EDCS attributes whose label begins with N
Table 6.6 EDCS attributes whose label begins with B	Table 6.19 EDCS attributes whose label begins with O
Table 6.7 EDCS attributes whose label begins with C	Table 6.20 EDCS attributes whose label begins with P
Table 6.8 EDCS attributes whose label begins with D	Table 6.21 EDCS attributes whose label begins with Q
Table 6.9 EDCS attributes whose label begins with E	Table 6.22 EDCS attributes whose label begins with R
Table 6.10 EDCS attributes whose label begins with F	Table 6.23 EDCS attributes whose label begins with S
Table 6.11 EDCS attributes whose label begins with G	Table 6.24 EDCS attributes whose label begins with T
Table 6.12 EDCS attributes whose label begins with H	Table 6.25 EDCS attributes whose label begins with U
Table 6.13 EDCS attributes whose label begins with I	Table 6.26 EDCS attributes whose label begins with V
Table 6.14 EDCS attributes whose label begins with J	Table 6.27 EDCS attributes whose label begins with W
Table 6.15 EDCS attributes whose label begins with K	Table 6.28 EDCS attributes whose label begins with X
Table 6.16 EDCS attributes whose label begins with L	Table 6.29 EDCS attributes whose label begins with Y
Table 6.17 EDCS attributes whose label begins with M	Table 6.30 EDCS attributes whose label begins with Z

6.3 EDCS Attribute Value Characteristic Dictionary

The specification of each field of an EDCS Attribute Value Characteristic Dictionary entry is presented in Table 6.31. The EVs specified in this International Standard are presented in Table 6.32 and 6.33.

Table 6.31 -- EDCS Attribute Value Characteristic Dictionary entry fields

Field	Specification	Location
Label	The EVL (see 4.3.2 Label).	Clause 6
Definition	The definition of the EV (see 4.3.1 Definition).	Clause 6
Applicability	"All" if the EV applies to all attribute value types or "Numeric" if the EV applies to only attribute value types of REAL, COUNT, INDEX, or INTEGER.	Clause 6
Code	The EVC (see 4.3.3 Code).	Clause 6
Reference type	The type of the references (see 4.3.4.2 Reference types).	Clause 6
References	The references for this EV (see 4.3.4 References and reference type).	Clause 6

Table 6.32 specifies EVs that describe quantitative attribute value characteristics.

Table 6.32 -- EDCS Attribute Value Characteristic Dictionary, quantitative entries

Label	Definition	Applicability	Code	Reference type	References
POSITIVE_INFINITY	The attribute value is positive infinity.	Numeric	1	DR	[NSOED]
NEGATIVE_INFINITY	The attribute value is negative infinity.	Numeric	2	DR	[NSOED]
POSITIVE_OVERFLOW	The attribute value is greater than any positive value that can be represented; positive overflow.	Numeric	3	DR	[NSOED]
NEGATIVE_OVERFLOW	The attribute value is less than any negative value that can be represented; negative overflow.	Numeric	4	DR	[NSOED]
POSITIVE_UNDERFLOW	The value of the attribute value is positive and the absolute value of the attribute value is less than the absolute value of any positive value that can be represented in the implementation; positive underflow.	Numeric	5	DR	[NSOED]
NEGATIVE_UNDERFLOW	The value of the attribute value is negative and the absolute value of the attribute value is less than the absolute value of any negative value that can be represented in the implementation; negative underflow.	Numeric	6	DR	[NSOED]

Table 6.33 specifies EVs that describe qualitative attribute value characteristics.

Table 6.33 -- EDCS Attribute Value Characteristic Dictionary, qualitative entries

Label	Definition	Applicability	Code	Reference type	References
MISSING	The attribute value is missing.	All	7	DR	[NSOED]
MULTIPLE	The attribute has more than one possible value; multiple.	All	8	DR	[NSOED]
NOT_APPLICABLE	No attribute value in the range of possible attribute values is applicable.	All	9	DR	[NSOED]
VALUE_WITHHELD	The attribute value exists, but due to policy considerations it cannot be given; value withheld.	All	10	DR	[NSOED]
UNDESIGNATED	The attribute value cannot be given for some reason other than it is MISSING, MULTIPLE, NOT_APPLICABLE, or VALUE_WITHHELD; undesignated.	All	11	DR	[NSOED]
VALUE_SPECIFIED	The attribute value is specified.	All	12	DR	[NSOED]
NOMINAL_VALUE	This attribute value is the nominal or default value.	All	13	DR	[NSOED]
CONSTANT_VALUE	The set of attribute values are constant at this value.	All	14	DR	[NSOED]
TOLERANCE	Each value in the set of attribute values is rounded to a multiple of this value; tolerance.	Numeric	15	DR	[NSOED]
MAXIMUM_VALUE	This attribute value is the maximum valid attribute value.	Numeric	16	DR	[NSOED]
MINIMUM_VALUE	This attribute value is the minimum valid attribute value.	Numeric	17	DR	[NSOED]
UPPER_BOUND	This attribute value bounds the set of attribute values from above; upper bound.	Numeric	18	DR	[NSOED]
LOWER_BOUND	This attribute value bounds the set of attribute values from below; lower bound.	Numeric	19	DR	[NSOED]
MEASUREMENT_ERROR	The attribute value was measured or estimated with a standard error given by this value.	Numeric	20	DR	[NSOED]

6.4 EDCS Attribute Enumerant Dictionary

The EEs specified in this International Standard are presented in Tables 6.36 through 6.61 and in Annex E in Tables E.2 through E.27. The specification of each field of an EDCS Attribute Enumerant Dictionary entry is presented in Table 6.34. In order to clarify the presentation of multiple EEs for each EA, the applicable EA is presented once prior to the presentation of its set of EEs. The EA is then not repeated for each of its EEs and instead the EAL field is greyed out. The references and reference type fields do not appear in Tables 6.36 through 6.61. These fields and the EAL and EEL fields are found together in Annex E in Tables E.2 through E.27.

Table 6.34 -- EDCS Attribute Enumerant Dictionary entry fields

Field	Specification	Location
Attribute label	The EAL for which this is an EE (see 4.3.2 Label).	Clause 6
Enumerant label	The EEL (see 4.3.2 Label).	Clause 6
Definition	The definition of the EE, except where no EEL is presented in which case it is the definition for the EA (see 4.3.1 Definition).	Clause 6
Code	The EEC (see 4.3.3 Code).	Clause 6
Reference type	The type of the references (see 4.3.4.2 Reference types).	Annex E
References	The references for this EE (see 4.3.4 References and reference type).	Annex E

An EE concept may be defined entirely by the use of an EC concept. In this case, no external references and reference type are necessary since the EDCS dictionary entry for the EC concept includes them. This case is represented in this International Standard by presenting such fields in grey to signifiy that the references and reference type are the same as those of the defining EC concept.

Within each table, EEs are first ordered alphabetically by EAL and then, for each EA, the EEs are presented in a natural order. The alphabetical organization by EAL is reflected in the structure of Table 6.35.

Table 6.35 -- EDCS Attribute Enumerant Dictionary tables

Table 6.36 EDCS attribute enumerant codes for attributes whose label begins with A	Table 6.49 EDCS attribute enumerant codes for attributes whose label begins with N
Table 6.37 EDCS attribute enumerant codes for attributes whose label begins with B	Table 6.50 EDCS attribute enumerant codes for attributes whose label begins with O
Table 6.38 EDCS attribute enumerant codes for attributes whose label begins with C	Table 6.51 EDCS attribute enumerant codes for attributes whose label begins with P
Table 6.39 EDCS attribute enumerant codes for attributes whose label begins with D	Table 6.52 EDCS attribute enumerant codes for attributes whose label begins with Q
Table 6.40 EDCS attribute enumerant codes for attributes whose label begins with E	Table 6.53 EDCS attribute enumerant codes for attributes whose label begins with R
Table 6.41 EDCS attribute enumerant codes for attributes whose label begins with F	Table 6.54 EDCS attribute enumerant codes for attributes whose label begins with S
Table 6.42 EDCS attribute enumerant codes for attributes whose label begins with G	Table 6.55 EDCS attribute enumerant codes for attributes whose label begins with T
Table 6.43 EDCS attribute enumerant codes for attributes whose label begins with H	Table 6.56 EDCS attribute enumerant codes for attributes whose label begins with U
Table 6.44 EDCS attribute enumerant codes for attributes whose label begins with I	Table 6.57 EDCS attribute enumerant codes for attributes whose label begins with V
Table 6.45 EDCS attribute enumerant codes for attributes whose label begins with J	Table 6.58 EDCS attribute enumerant codes for attributes whose label begins with W
Table 6.46 EDCS attribute enumerant codes for attributes whose label begins with K	Table 6.59 EDCS attribute enumerant codes for attributes whose label begins with X
Table 6.47 EDCS attribute enumerant codes for attributes whose label begins with L	Table 6.60 EDCS attribute enumerant codes for attributes whose label begins with Y
Table 6.48 EDCS attribute enumerant codes for attributes whose label begins with M	Table 6.61 EDCS attribute enumerant codes for attributes whose label begins with Z

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