The layer-cake best-practice model of analytics (operational systems and external data feeding data marts and a data warehouse, with BI tools as the cherry on the top) is rapidly becoming obsolete. It’s being replaced by a new, multi-polar model where data is collected and analyzed in multiple places, according to the type of data and analysis required:
• New HTAP systems (traditional operational data and real-time analytics)
• Traditional data warehouses (finance, budgets, corporate KPIs, etc.)
• Hadoop/Spark (sensor and polystructured data, long-term storage and analysis)
• Standalone BI systems (personal and departmental analytics, including spreadsheets) …
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