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The
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aim
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of
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the
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Elaboration
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Phase:
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to
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design
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the
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datamart
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schemas,
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ETL
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processes
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etc
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that
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are
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needed
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to
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support
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the
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requirements
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identified
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in
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the
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Inception
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Phase.
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Driving
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the
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spikes
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deeper
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once
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requirements
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are
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more
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stable.
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Schema
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refinement:
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star
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and
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snowflake
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schemas.
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Metadata
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refinement:
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localization,
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column-level
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security,
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row-level
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security.
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Data
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Processes:
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converting
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spreadsheet
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calculations
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into
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ETL
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processes.
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BI
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Architectures:
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scale-out
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vs
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scale-up
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Designing
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an
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architecture
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to
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handle
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the
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non-functional
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requirements
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(performance,
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hardware,
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data
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sources,
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acceptance
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criteria,
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etc).
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Sizing:
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10-10-10
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rule.
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Benchmarking.
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Identifying
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conforming
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dimensions
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in
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common
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with
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other
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datamarts.
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