Schema on write-data is checked against the schema before written into database
Schema on read-this is what Hive has. Doesnt verify the data when its loaded in but
only when a query is issued.
Conversions between types
-any numeric ty
Crisp-Data Mining Process
Crisp Cycle built around exploration, it iterates on approaches/strategy instead of design
-facing data analytics invest time in reducing uncertainty.
- data analysts should be good at formulating a problem, to prototype solution