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ENV510 Landscape Ecology and GIS
Definitions
& descriptions | Concepts
& issues | Setting
up GIS | Using
GIS
| Applications
Representation
| Spatial data | Referencing
| Data issues
| Accuracy
| Error
| Management
| File systems | DBMS
| Hierarchical |
Network
| Relational
| OO
This sort of organisation
is well known in environmental science because it is the way flora and fauna
taxonomies and soil classifications are organised. Each part of the hierarchy
can be reached using a 'key' - a set of discriminating criteria that describes
the data structure. Hierarchical
structures allow quick and easy access to data where a one to many relationship
exists.
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