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16 Cards in this Set
- Front
- Back
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Geospatial Data / Georeferenced Data
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Spatial data located in reference to standard coordinate system for the earth
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Map Projection
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System for transforming known location on non-flat earth to a flat plane
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Transaction Processing System - Definition
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Computer responds immediately to user requests (i.e. transactions).
Like an electronic filing cabinet |
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Transaction Processing System - Features
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Optimize data quality, minimize cost
Emphasis on storage/retrieval |
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Batch Processing
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[Processing of data / accomplishment of jobs] accumulated in advance such that user cannot further influence processing while in progress. (automated)
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Decision Support Systems - Definition
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Applications that analyze data and presents it in a way useful to making decisions
Involves Modeling |
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Product-oriented Info Systems (examples)
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Mega Data Bases
(USGS, US Census, etc.) |
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Query Oriented Info Systems
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Problem specific databases
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Basic GIS Hardware
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CPU
Lots of Memory Dispaly Devices Large Disk Drives |
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Special GIS Hardware
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Digitizers and Scanners (input)
Plotters, printers, film recorders (output) Application software for characterization and association Network Communication (internet, LAN, etc.) |
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Ancillary Data
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Data that comes from other sources (that created data for other reasons and uses)
e.g. query-oriented studies, product-oriented studies |
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ArcCatalog
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Data Management Tool for viewing geographic databases, metadata, and maps
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ArcMap
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Map-centric application to work w/ map data and create cartographic output
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ArcToolbox
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Interface to geoprocessing tasks
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Type of Data in Arc 9.x (Know the difference)
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Coverages, shapefiles, geodtabases, grids, images, TINs, CAD data sources
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4 major components of geographic features
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Geographic Position - Location
Attributes - descriptive data SpatialRelationships-Association Time - Occurrence |
