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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
| Micro-level | Macro-level
| Usage | Error
| Management
Accessibility
Direct and indirect
costs
Usage components
of data quality are specific to the resources of the organisation.
Accessibility
refers to the ease at which data can be obtained and used. Some data can have
restricted access, while other data may take considerable time or effort to
retrieve it from its source, which makes it not suitable for use.
Accessibility
can be affected by data format, copyright laws and the cost of the data.
Direct
costs relate the price paid for the data. If organisations generate their own
data, the cost of making that data set can be hidden. This makes accessing true
costs of data difficult. Indirect costs include factors such as time and materials
needed.
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