Spatial Archive and Interchange Format: Difference between revisions

Revision as of 19:22, 22 May 2023

Revision as of 19:41, 22 May 2023

Line 7:

==SAIF dataset==

SAIF 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.<ref name="saif3.2"/> 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 [[Developer (software)|developers]]. A SAIF dataset, with a {{Not a typo|.saf}} or {{Not a typo|.zip}} extension, is compressed using the zip archive format.

==Schema definition==

Line 15:

==Inheritance==

SAIF supports multiple inheritance, although common usage involved single inheritance only.<ref name="saif3.2">{{Cite web |url=http://home.gdbc.gov.bc.ca/SAIF/ |title=Spatial Archive and Interchange Format:Formal Definition Release 3.2 |access-date=2010-11-24 |archive-date=2010-11-21 |archive-url=https://web.archive.org/web/20010517101331/http://home.gdbc.gov.bc.ca/SAIF/ |website=Geographic Data BC|url-status=dead }}</ref>

==Object referencing==

Line 44:

* Sondheim, M., K. Gardels, and K. Buehler, 1999. GIS Interoperability. pp.&nbsp;347–358. in Geographical Information Systems (Second Edition), Volume 1, edited by Paul A. Longley, Michael F. Goodchild, David J. Magurie and Davide W. Rhind.

* Sondheim, M., P. Friesen, D. Lutz, and D. Murray. 1997. Spatial Archive and Interchange Format (SAIF). in Spatial Database Transfer Standards 2: Characteristics for Assessing Standards and Full Descriptions of the National and International Standards in the World. edited by Moellering H. and Hogan R. Elsevier, Netherlands. {{ISBN|0-08-042433-3}}.

* Surveys and Resource Mapping Branch. Spatial Archive and Interchange Format, Release 3.2, Formal Definition. 1995. (also Release 3.1 (1994); 3.0 (1993); 2.0, (1992); 1.0 (1991); and 0.1, (1990)) Surveys and Resource Mapping Branch, British Columbia Ministry of Environment, Lands and Parks. 258p. Also published by the Canadian General Standards Board, CAN/CGSB-171.1-95.<ref>{{Cite web |url=http://www.ilmb.gov.bc.ca/geobc/servicedesk.html |title=GeoBC Service Desk &#124; Ministry of Natural Resource Operations |access-date=2010-11-24 |archive-date=2010-11-21 |archive-url=https://web.archive.org/web/20101121061333/http://ilmb.gov.bc.ca/geobc/servicedesk.html |url-status=dead }}</ref>

==See also==