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2 : Data Quality Information
- Data Quality Information -- a general assessment of the quality of the data
set. (Recommendations on information to be reported and tests to be performed are
found in "Spatial Data Quality," which is chapter 3 of part 1 in Department of
Commerce, 1992, Spatial Data Transfer Standard (SDTS) (Federal Information
Processing Standard 173): Washington, Department of Commerce, National Institute of
Standards and Technology.)
- Type: compound
- Short Name: dataqual
- Data_Quality_Information =
- 0{Attribute_Accuracy}1 +
- Logical_Consistency_Report +
- Completeness_Report +
- 0{Positional_Accuracy}1 +
- Lineage +
- (Cloud_Cover)
- Attribute_Accuracy =
- Attribute_Accuracy_Report +
- (1{Quantitative_Attribute_Accuracy_Assessment}n)
- Quantitative_Attribute_Accuracy_Assessment =
- Attribute_Accuracy_Value +
- Attribute_Accuracy_Explanation
- Positional_Accuracy =
- 0{Horizontal_Positional_Accuracy}1 +
- 0{Vertical_Positional_Accuracy}1
- Horizontal_Positional_Accuracy =
- Horizontal_Positional_Accuracy_Report +
- (1{Quantitative_Horizontal_Positional_Accuracy_Assessment}n)
- Quantitative_Horizontal_Positional_Accuracy_Assessment =
- Horizontal_Positional_Accuracy_Value +
- Horizontal_Positional_Accuracy_Explanation
- Vertical_Positional_Accuracy =
- Vertical_Positional_Accuracy_Report +
- (1{Quantitative_Vertical_Positional_Accuracy_Assessment}n)
- Quantitative_Vertical_Positional_Accuracy_Assessment =
- Vertical_Positional_Accuracy_Value +
- Vertical_Positional_Accuracy_Explanation
- Lineage =
- 0{Source_Information}n +
- 1{Process_Step}n
- Source_Information =
- Source_Citation +
- 0{Source_Scale_Denominator}1 +
- Type_of_Source_Media +
- Source_Time_Period_of_Content +
- Source_Citation_Abbreviation +
- Source_Contribution
- Source_Citation =
- Citation_Information (see section 8 for production
rules)
- Source_Time_Period_of_Content =
- Time_Period_Information (see section 9 for production
rules) +
- Source_Currentness_Reference
- Process_Step =
- Process_Description +
- 0{Source_Used_Citation_Abbreviation}n +
- Process_Date +
- (Process_Time) +
- 0{Source_Produced_Citation_Abbreviation}n +
- (Process_Contact)
- Process_Contact =
- Contact_Information (see section 10 for production
rules)
- 2.1 Attribute Accuracy
-- an assessment of the accuracy of the identification of entities and assignment
of attribute values in the data set.
- Type: compound
-
Short Name: attracc
- 2.1.1 Attribute Accuracy Report -- an
explanation of the accuracy of the identification of the entities and
assignments of values in the data set and a description of the tests used.
- Type: text
- Domain: free text
- Short Name: attraccr
- 2.1.2 Quantitative Attribute
Accuracy Assessment -- a value assigned to summarize the accuracy of the
identification of the entities and assignments of values in the data set and
the identification of the test that yielded the value.
- Type: compound
-
Short Name: qattracc
- 2.1.2.1 Attribute Accuracy Value -- an estimate
of the accuracy of the identification of the entities and assignments of
attribute values in the data set.
- Type: text
- Domain: "Unknown" free text
- Short Name: attraccv
- 2.1.2.2 Attribute Accuracy Explanation --
the identification of the test that yielded the Attribute Accuracy
Value.
- Type: text
- Domain: free text
- Short Name: attracce
- 2.2 Logical Consistency Report -- an explanation
of the fidelity of relationships in the data set and tests used.
- Type: text
- Domain: free text
- Short Name: logic
- 2.3 Completeness
Report -- information about omissions, selection criteria, generalization,
definitions used, and other rules used to derive the data set.
- Type: text
- Domain: free text
- Short Name: complete
- 2.4 Positional
Accuracy -- an assessment of the accuracy of the positions of spatial
objects.
- Type: compound
-
Short Name: posacc
- 2.4.1 Horizontal Positional Accuracy -- an
estimate of accuracy of the horizontal positions of the spatial objects.
- Type: compound
-
Short Name: horizpa
- 2.4.1.1 Horizontal Positional Accuracy
Report -- an explanation of the accuracy of the horizontal coordinate
measurements and a description of the tests used.
- Type: text
- Domain: free text
- Short Name: horizpar
- 2.4.1.2 Quantitative
Horizontal Positional Accuracy Assessment -- numeric value assigned to
summarize the accuracy of the horizontal coordinate measurements and the
identification of the test that yielded the value.
- Type: compound
-
Short Name: qhorizpa
- 2.4.1.2.1 Horizontal Positional
Accuracy Value -- an estimate of the accuracy of the horizontal
coordinate measurements in the data set expressed in (ground)
meters.
- Type: real
- Domain: free real
- Short Name: horizpav
- 2.4.1.2.2 Horizontal Positional
Accuracy Explanation -- the identification of the test that yielded
the Horizontal Positional Accuracy Value.
- Type: text
- Domain: free text
- Short Name: horizpae
- 2.4.2 Vertical Positional Accuracy -- an
estimate of accuracy of the vertical positions in the data set.
- Type: compound
-
Short Name: vertacc
- 2.4.2.1 Vertical Positional Accuracy
Report -- an explanation of the accuracy of the vertical coordinate
measurements and a description of the tests used.
- Type: text
- Domain: free text
- Short Name: vertaccr
- 2.4.2.2 Quantitative
Vertical Positional Accuracy Assessment -- numeric value assigned to
summarize the accuracy of vertical coordinate measurements and the
identification of the test that yielded the value.
- Type: compound
-
Short Name: qvertpa
- 2.4.2.2.1 Vertical Positional Accuracy
Value -- an estimate of the accuracy of the vertical coordinate
measurements in the data set expressed in (ground) meters.
- Type: real
- Domain: free real
- Short Name: vertaccv
- 2.4.2.2.2 Vertical Positional
Accuracy Explanation -- the identification of the test that yielded
the Vertical Positional Accuracy Value.
- Type: text
- Domain: free text
- Short Name: vertacce
- 2.5 Lineage -- information about the events,
parameters, and source data which constructed the data set, and information about
the responsible parties.
- Type: compound
-
Short Name: lineage
- 2.5.1 Source
Information -- list of sources and a short discussion of the information
contributed by each.
- Type: compound
-
Short Name: srcinfo
- 2.5.1.1 Source
Citation -- reference for a source data set.
- Type: compound
- Short Name: srccite
- 2.5.1.2 Source Scale Denominator -- the
denominator of the representative fraction on a map (for example, on a
1:24,000-scale map, the Source Scale Denominator is 24000).
- Type: integer
- Domain: Source Scale Denominator > 1
- Short Name: srcscale
- 2.5.1.3 Type
of Source Media -- the medium of the source data set.
- Type: text
- Domain: "paper" "stable-base material" "microfiche" "microfilm"
"audiocassette" "chart" "filmstrip" "transparency" "videocassette"
"videodisc" "videotape" "physical model" "computer program" "disc"
"cartridge tape" "magnetic tape" "online" "CD-ROM" "electronic bulletin
board" "electronic mail system" free text
- Short Name: typesrc
- 2.5.1.4 Source Time Period of Content --
time period(s) for which the source data set corresponds to the
ground.
- Type: compound
-
Short Name: srctime
- 2.5.1.4.1 Source Currentness Reference --
the basis on which the source time period of content information of the
source data set is determined.
- Type: text
- Domain: "ground condition" "publication date" free text
- Short Name: srccurr
- 2.5.1.5 Source Citation Abbreviation --
short-form alias for the source citation.
- Type: text
- Domain: free text
- Short Name: srccitea
- 2.5.1.6 Source
Contribution -- brief statement identifying the information contributed
by the source to the data set.
- Type: text
- Domain: free text
- Short Name: srccontr
- 2.5.2 Process Step --
information about a single event.
- Type: compound
-
Short Name: procstep
- 2.5.2.1 Process
Description -- an explanation of the event and related parameters or
tolerances.
- Type: text
- Domain: free text
- Short Name: procdesc
- 2.5.2.2 Source Used Citation
Abbreviation -- the Source Citation Abbreviation of a data set used in
the processing step.
- Type: text
- Domain: Source Citation Abbreviations from the Source Information
entries for the data set.
- Short Name: srcused
- 2.5.2.3 Process Date --
the date when the event was completed.
- Type: date
- Domain: "Unknown" "Not complete" free date
- Short Name: procdate
- 2.5.2.4 Process Time --
the time when the event was completed.
- Type: time
- Domain: free time
- Short Name: proctime
- 2.5.2.5 Source Produced Citation
Abbreviation -- the Source Citation Abbreviation of an intermediate
data set that (1) is significant in the opinion of the data producer, (2)
is generated in the processing step, and (3) is used in later processing
steps.
- Type: text
- Domain: Source Citation Abbreviations from the Source Information
entries for the data set.
- Short Name: srcprod
- 2.5.2.6 Process
Contact -- the party responsible for the processing step
information.
- Type: compound
- Short Name: proccont
- 2.6 Cloud Cover -- area of a data
set obstructed by clouds, expressed as a percentage of the spatial extent.
- Type: integer
- Domain: 0 <= Cloud Cover <= 100 "Unknown"
- Short Name: cloud
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