Event sourcing
Storing every state change as an immutable event log rather than just the current state. Example: instead of storing "deal status = Won", store every status transition Created → Qualified → Proposal → Won. Enables full auditability and temporal queries.
Expert insight
Event sourcing (storing every state change as an immutable event rather than overwriting a record) makes it possible to reconstruct exactly how a record reached its current state, valuable for debugging and audit, but it adds real complexity: every reader of that data needs to know how to replay events into current state, not just read a single row.
How PURIST uses this
This concept is built into every automation we deploy.
When PURIST builds your automation, Event sourcing is not an optional consideration it is part of the production standard. Our workflows are tested against edge cases, monitored 24/7, and built to handle what happens when things don't go as expected.
Every client workflow we deploy in the Architecture category is designed with this principle in mind from day one not added as an afterthought.
Complexity level
Technical term used in production automation systems.
Related terms
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