Difference between revisions of "Starter Dictionary"

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==ESRI==
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==ESRI Shapefile==
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==Feature==
 
==Feature==
  
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'''Additional Explanation or Clarification:''' [http://wiki.osgeo.org/index.php/Starter_Dictionary#Feature Features] belonging to a geospatial data set typically share a common [http://wiki.osgeo.org/index.php/Starter_Dictionary#Feature_Schema feature schema] or set of [http://wiki.osgeo.org/index.php/Starter_Dictionary#Feature_Attributes feature attributes]. The term does not typically refer to a single [http://wiki.osgeo.org/index.php/Starter_Dictionary#Feature feature]. Geospatial datasets are often represented in a [http://wiki.osgeo.org/index.php/Starter_Dictionary#GIS GIS] by a thematic layer. Geospatial datasets are typically the main elements in a [http://wiki.osgeo.org/index.php/Starter_Dictionary#GIS_Data_Model GIS Data Model].  
 
'''Additional Explanation or Clarification:''' [http://wiki.osgeo.org/index.php/Starter_Dictionary#Feature Features] belonging to a geospatial data set typically share a common [http://wiki.osgeo.org/index.php/Starter_Dictionary#Feature_Schema feature schema] or set of [http://wiki.osgeo.org/index.php/Starter_Dictionary#Feature_Attributes feature attributes]. The term does not typically refer to a single [http://wiki.osgeo.org/index.php/Starter_Dictionary#Feature feature]. Geospatial datasets are often represented in a [http://wiki.osgeo.org/index.php/Starter_Dictionary#GIS GIS] by a thematic layer. Geospatial datasets are typically the main elements in a [http://wiki.osgeo.org/index.php/Starter_Dictionary#GIS_Data_Model GIS Data Model].  
  
'''Example:''' An ESRI Shapefile with a set of line features representing city streets could be called a Geospatial data set.
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'''Example:''' An [http://wiki.osgeo.org/index.php/Starter_Dictionary#ESRI_Shapefile ESRI Shapefile] with a set of line features representing city streets could be called a Geospatial data set.
  
 
'''Associated Terms:'''  
 
'''Associated Terms:'''  
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==Geospatial Metadata==
 
==Geospatial Metadata==
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Metadata is often defined as "data about data". As an example, you might have metadata for a document might include the following information:
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Identify the purpose of the document.
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The date the document was written.
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The date the document was last revised.
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The author.
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Geospatial Metadata is information about a geospatial dataset that may not be contained in, or may not be readily apparent from, the Geospatial dataset itself. For example, you could view the coordinates of feature geometry in a vector data set, but may not be able to determine the spatial reference system from the coordinate values. You could view the name of a feature attribute, but that may not indicate what aspect of the real world that attribute represents. This is the type of inormation that can be encapsulated in geospatial metadata.
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==Raster Data==
 
==Raster Data==

Revision as of 11:23, 18 December 2007

ESRI

ESRI Shapefile

Feature

Feature Geometry

Feature Attribute

Feature Schema

Geospatial Data Set

Simple Definition: A set or group of geospatial data with a common theme or association.

Additional Explanation or Clarification: Features belonging to a geospatial data set typically share a common feature schema or set of feature attributes. The term does not typically refer to a single feature. Geospatial datasets are often represented in a GIS by a thematic layer. Geospatial datasets are typically the main elements in a GIS Data Model.

Example: An ESRI Shapefile with a set of line features representing city streets could be called a Geospatial data set.

Associated Terms:

  • Gespatial Dataset Definition

Also Known As:

  • Data Set

References:

Links:

GIS

GIS Data Model

Geospatial Metadata

Metadata is often defined as "data about data". As an example, you might have metadata for a document might include the following information:


Identify the purpose of the document.

The date the document was written.

The date the document was last revised.

The author.


Geospatial Metadata is information about a geospatial dataset that may not be contained in, or may not be readily apparent from, the Geospatial dataset itself. For example, you could view the coordinates of feature geometry in a vector data set, but may not be able to determine the spatial reference system from the coordinate values. You could view the name of a feature attribute, but that may not indicate what aspect of the real world that attribute represents. This is the type of inormation that can be encapsulated in geospatial metadata.


Raster Data

Simple Feature

Thematic Layer

Vector Data