Content standards for digital geospatial metadata -- FGDC
5: Entity and Attribute Information -- information about the information content of the data set, including the entities types, their attributes, and the domains from which attribute values may be assigned.
Syntax:
- Entity_and_Attribute_Information =
- [Detailed_Description | Overview_Description | Detailed_Description + Overview_Description]
- Detailed_Description =
- 1{Entity_Type + 0{Attribute}n }n
- Entity_Type =
- Entity_Type_Label + Entity_Type_Definition + Entity_Type_Definition_Source
- Attribute =
- Attribute_Label + Attribute_Definition + Attribute_Definition_Source + 1{Attribute_Domain_Values}n + 0{Attribute_Units_of_Measure}1 + (Attribute_Measurement_Resolution) + (1{Beginning_Date_of_Attribute_Values + 0{Ending_Date_of_Attribute_Values}1}n ) + (Attribute_Value_Accuracy_Information) + (Attribute_Measurement_Frequency)
- Attribute_Domain_Values =
- [Enumerated_Domain | Range_Domain | Codeset_Domain | Unrepresentable_Domain]
- Enumerated_Domain =
- 1{Enumerated_Domain_Value + Enumerated_Domain_Value_Definition + Enumerated_Domain_Value_Definition_Source + 0{Attribute}n }n
- Range_Domain =
- Range_Domain_Minimum + Range_Domain_Maximum + 0{Attribute}n
- Codeset_Domain=
- Codeset_Name + Codeset_Source
- Attribute_Value_Accuracy_Information =
- Attribute_Value_Accuracy + Attribute_Value_Accuracy_Explanation
- Overview_Description =
- 1{Entity_and_Attribute_Overview + 1{Entity_and_Attribute_Detail_Citation}n }n
Semantics:
- Detailed Description --
5.1
- description of the entities, attributes, attribute values, and related characteristics encoded in the data set.
Compound.
- Entity Type --
5.1.1
- the definition and description of a set into which similar entity instances are classified.
Compound.
- Entity Type Label --
5.1.1.1
- the name of the entity type.
- Type: text
- Domain: free text
- Entity Type Definition --
5.1.1.2
- the description of the entity type.
- Type: text
- Domain: free text
- Entity Type Definition Source --
5.1.1.3
- the authority of the definition.
- Type: text
- Domain: free text
- Attribute --
5.1.2
- a defined characteristic of an entity.
Compound.
- Attribute Label --
5.1.2.1
- the name of the attribute.
- Type: text
- Domain: free text
- Attribute Definition --
5.1.2.2
- the description of the attribute.
- Type: text
- Domain: free text
- Attribute Definition Source --
5.1.2.3
- the authority of the definition.
- Type: text
- Domain: free text
- Attribute Domain Values --
5.1.2.4
- the valid values that can be assigned for an attribute.
Compound.
- Enumerated Domain --
5.1.2.4.1
- the members of an established set of valid values.
Compound.
- Enumerated Domain Value --
5.1.2.4.1.1
- the name or label of a member of the set.
- Type: text
- Domain: free text
- Enumerated Domain Value Definition --
5.1.2.4.1.2
- the description of the value.
- Type: text
- Domain: free text
- Enumerated Domain Value Definition Source --
5.1.2.4.1.3
- the authority of the definition.
- Type: text
- Domain: free text
- Range Domain --
5.1.2.4.2
- the minimum and maximum values of a continuum of valid values.
Compound.
- Range Domain Minimum --
5.1.2.4.2.1
- the least value that the attribute can be assigned.
- Type: text
- Domain: free text
- Range Domain Maximum --
5.1.2.4.2.2
- the greatest value that the attribute can be assigned.
- Type: text
- Domain: free text
- Codeset Domain --
5.1.2.4.3
- reference to a standard or list which contains the members of an established set of valid values.
Compound.
- Codeset Name --
5.1.2.4.3.1
- the title of the codeset.
- Type: text
- Domain: free text
- Codeset Source --
5.1.2.4.3.2
- the authority for the codeset.
- Type: text
- Domain: free text
- Unrepresentable Domain --
5.1.2.4.4
- description of the values and reasons why they cannot be represented.
- Type: text
- Domain: free text
- Attribute Units of Measurement --
5.1.2.5
- the standard of measurement for an attribute value.
- Type: text
- Domain: free text
- Attribute Measurement Resolution --
5.1.2.6
- the smallest unit increment to which an attribute value is measured.
- Type: real
- Domain: Attribute Measurement Resolution > 0.0
- Beginning Date of Attribute Values --
5.1.2.7
- earliest or only date for which the attribute values are current. In cases when a range of dates are provided, this is the earliest date for which the information are valid.
- Type: date
- Domain: free date
- Ending Date of Attribute Values --
5.1.2.8
- latest date for which the information are current. Used in cases when a range of dates are provided.
- Type: date
- Domain: free date
- Attribute Value Accuracy Information --
5.1.2.9
- an assessment of the accuracy of the assignment of attribute values.
Compound.
- Attribute Value Accuracy --
5.1.2.9.1
- an estimate of the accuracy of the assignment of attribute values.
- Type: real
- Domain: free real
- Attribute Value Accuracy Explanation --
5.1.2.9.2
- the definition of the Attribute Value Accuracy measure and units, and a description of how the estimate was derived.
- Type: text
- Domain: free text
- Attribute Measurement Frequency --
5.1.2.10
- the frequency with which attribute values are added.
- Type: real
- Domain: "Unknown" "As needed" "Irregular" "None planned" free text
- Overview Description --
5.2
- summary of, and citation to detailed description of, the information content of the data set.
Compound.
- Entity and Attribute Overview --
5.2.1
- detailed summary of the information contained in a data set.
- Type: text
- Domain: free text
- Entity and Attribute Detail Citation --
5.2.2
- reference to the complete description of the entity types, attributes, and attribute values for the data set.
- Type: text
- Domain: free text
June 8, 1994