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- Spatial_Archive_and_Interchange_Format abstract "The Spatial Archive and Interchange Format (SAIF, pronounced safe) was defined in the early 1990s as a self-describing, extensible format designed to support interoperability and storage of geospatial data. SAIF DatasetSAIF has two major components that together define SAIFtalk. The first is the Class Syntax Notation (CSN), a data definition language used to define a dataset's schema. The second is the Object Syntax Notation (OSN), a data language used to represent the object data adhering to the schema. The CSN and OSN are contained in the same physical file, along with a directory at the beginning of the file. The use of ASCII text and a straightforward syntax for both CSN and OSN ensure that they can be parsed easily and understood directly by users and developers. A SAIF dataset, with a .saf or .zip extension, is compressed using the zip archive format.Schema Definition SAIF defines 285 classes (including enumerations) in the Class Syntax Notation, covering the definitions of high-level features, geometric types, topological relationships, temporal coordinates and relationships, geodetic coordinate system components and metadata. These can be considered as forming a base schema. Using CSN, a user defines a new schema to describe the features in a given dataset. The classes belonging to the new schema are defined in CSN as subclasses of existing SAIF classes or as new enumerations. A ForestStand::MySchema for example could be defined with attributes including age, species, etc. and with ForestStand::MySchema specified as a subclass of GeographicObject, a feature defined in the SAIF standard. All user defined classes must belong to a schema, one defined by the user or previously existing. Different schemas can exist in the same dataset and objects defined under one schema can reference those specified in another. Inheritance SAIF supports multiple inheritance, although common usage involved single inheritance only. Object Referencing Object referencing can be used as a means of breaking up large monolithic structures. More significantly it can allow objects to be defined only once and then referenced any number of times. A section of the geometry of the land-water interface could define part of a coastline as well as part of a municipal boundary and part of a marine park boundary. This geometric feature can be defined and given an object reference, which is then used when the geometry of the coastline, municipality and marine park are specified. Multimedia Multimedia objects can also be objects in a SAIF dataset and referenced accordingly. For example, image and sound files associated with a given location could be included.".
- Spatial_Archive_and_Interchange_Format wikiPageExternalLink saif.
- Spatial_Archive_and_Interchange_Format wikiPageExternalLink FMEReadersWriters.pdf.
- Spatial_Archive_and_Interchange_Format wikiPageExternalLink publication.html.
- Spatial_Archive_and_Interchange_Format wikiPageExternalLink saif31spec.html.
- Spatial_Archive_and_Interchange_Format wikiPageExternalLink part1.pdf.
- Spatial_Archive_and_Interchange_Format wikiPageExternalLink servicedesk.html..
- Spatial_Archive_and_Interchange_Format wikiPageExternalLink saif.pdf.
- Spatial_Archive_and_Interchange_Format wikiPageID "29728586".
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- Spatial_Archive_and_Interchange_Format wikiPageRevisionID "557665763".
- Spatial_Archive_and_Interchange_Format wikiPageWikiLink Category:GIS_file_formats.
- Spatial_Archive_and_Interchange_Format wikiPageWikiLink Category:Interoperability.
- Spatial_Archive_and_Interchange_Format wikiPageWikiLink Category:Open_Geospatial_Consortium.
- Spatial_Archive_and_Interchange_Format wikiPageWikiLink Data_definition_language.
- Spatial_Archive_and_Interchange_Format wikiPageWikiLink FME_(software).
- Spatial_Archive_and_Interchange_Format wikiPageWikiLink Geography_Markup_Language.
- Spatial_Archive_and_Interchange_Format wikiPageWikiLink Open_Geospatial_Consortium.
- Spatial_Archive_and_Interchange_Format wikiPageWikiLink Safe_Software.
- Spatial_Archive_and_Interchange_Format wikiPageWikiLink Spatial_Data_Transfer_Standard.
- Spatial_Archive_and_Interchange_Format wikiPageWikiLinkText "Spatial Archive and Interchange Format".
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- Spatial_Archive_and_Interchange_Format subject Category:GIS_file_formats.
- Spatial_Archive_and_Interchange_Format subject Category:Interoperability.
- Spatial_Archive_and_Interchange_Format subject Category:Open_Geospatial_Consortium.
- Spatial_Archive_and_Interchange_Format type Language.
- Spatial_Archive_and_Interchange_Format type Language.
- Spatial_Archive_and_Interchange_Format type Organization.
- Spatial_Archive_and_Interchange_Format type Page.
- Spatial_Archive_and_Interchange_Format type Organization.
- Spatial_Archive_and_Interchange_Format comment "The Spatial Archive and Interchange Format (SAIF, pronounced safe) was defined in the early 1990s as a self-describing, extensible format designed to support interoperability and storage of geospatial data. SAIF DatasetSAIF has two major components that together define SAIFtalk. The first is the Class Syntax Notation (CSN), a data definition language used to define a dataset's schema.".
- Spatial_Archive_and_Interchange_Format label "Spatial Archive and Interchange Format".
- Spatial_Archive_and_Interchange_Format sameAs Q7574035.
- Spatial_Archive_and_Interchange_Format sameAs m.0fq2mx8.
- Spatial_Archive_and_Interchange_Format sameAs Q7574035.
- Spatial_Archive_and_Interchange_Format wasDerivedFrom Spatial_Archive_and_Interchange_Format?oldid=557665763.
- Spatial_Archive_and_Interchange_Format isPrimaryTopicOf Spatial_Archive_and_Interchange_Format.