CAN/CGSB-171.1-95
1.1 High Level Design Objectives
The Spatial Archive and Interchange Format was developed as a means of sharing
spatial and spatiotemporal data. SAIF's primary objectives are as follows:
1. it must be appropriate for modelling and moving data in general; that
is, it should be able to deal with both spatiotemporal and traditional
information,
2. it must handle virtually any kind of geographic data, including those:
(i), with or without extensive attribute descriptions, and (ii), with
geometry defined by vector or raster structures in two or three
dimensions, (e.g., typical topographic, cadastral, and thematic data,
but also, subsurface geologic data, climate data, hydrographic data,
etc.),
3. it must address time such that temporal events and relationships can be
handled (e.g., moving oil spills, vehicle navigation, general
monitoring activities),
4. it must address data management requirements (such as support for
updates, ability to integrate with multimedia data, applicability to
both large and small data volumes, the ability to interface well with
database queries, and compatibility with catalogue developments),
5. it must be suitable for effective operations in network environments,
as well as appropriate for conventional file transfer on magnetic or
optical media,
6. it must be easy to use and cost effective, and it must be easy to
maintain and extend in response to users' needs and changing technology
(without demanding major investments on the part of the data providers
or data users),
7. it should harmonize with new SQL database developments and open GIs
initiatives, as well as other geographic standards such as DIGEST and
SDTS.
SAIF is designed to facilitate interoperability, particularly in the context of
data exchange. It also represents an efficient means of archiving data in a
vendor neutral format. An overriding consideration with SAIF is to be able to
treat geographic data as simply another kind of data; that is, the roots of
SAIF are in the information sciences.
OEN:
ONGC
Langue:
English
Code(s) de l'ICS:
01.040.35;
35.040;
07.060
Statut:
Annulée
Date de Publication:
1995-01-30
Numéro Standard:
CAN/CGSB-171.1-95