Storage of metadata, Storage of metadata : A) Internal : Same file as the

Storage of metadata

Storage of metadata:

A) Internal:

Same file as the data
Transferred with the data at all times
High redundancy
Hard to aggregate metadata, e.g. have to parse the data file to get at the metadata

B) External:

Bundled with the file
Can be streamed before or after data capture
Makes for efficient searching and retrieval of data
Linked together using Uniform Resource Indentifiers (URIs)
Hard to ensure that these links are sane

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