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Aggregation
Aggregation is the process in which, information is gathered and expressed in a summary form. As with classification, a common
aggregation purpose is to bring relative order and simplicity. So, what’s the difference?
Aggregation is only used when the objects to be aggregated have exactly the same symbolisation: a block of houses will be
aggregated as a single house. While classification is used when the objects to be aggregated have a different symbolisation;
a new symbolisation is therefore needed.
Aggregation vs Classification.
The houses on the left are aggregated as a rectangle on the right.
The deal and broad-leaved forest on the left are classified as a forest on the right.
Aggregation vs ClassificationAggregation Examples.
The following examples, are typical aggregation operations.
Roll over the picture to get a zoom.
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