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Big Data (Small Data (answer particular question, one / several pc's,…
Big Data
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big data
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longevity: kept eternally, changing storage / format over times
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nomenclature:
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--> human involvement, 85 to 90 % accuracy
Sample size calculation
Confidence Level --> how sure you can be, 95 %
Confidence Interval --> margin of error, plus-minus figure
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Identifiers: where it belongs --> alphanumeric string associated with particular object--> for completeness, otherwise no meaning
Immutability = freeze it, identifier must never change
Introspection = attach it to object, permanent place
Indexing --> find it (summary, search faster, cross index to find relationships, merging data, easily updatable, after database is created)