Academy Getting your data in order
Episode 8 of 10
Why a spreadsheet is not a data warehouse
Your source systems serve today's work and overwrite the past.
Check yourself
Why can your ERP struggle to show how a customer's margin developed over five years?
Source systems serve today's work and overwrite the past. A warehouse keeps the history.
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04 · Basic
Getting your data in order
From loose exports to one version of the truth: master data, one source per field, pipelines, warehouse and migration, and why this decides whether AI works.
After this series you can:
- You point out where your data drifts apart and count how big the problem is, before you build.
- You record per piece of data which system is the source, who decides, and what is checked at entry.
- You pick what your data question needs: a pipeline, a warehouse or a migration, and require every step checked.