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Demo 2 / architecture case study
Modernize without starting over.
A 15-year-old manufacturing system still runs the business. Explore how its next chapter can be built around it, one deliberate slice at a time.
The business works. The architecture is the constraint.Modernization is not a single rewrite event. It is a controlled path from today's operating reality to tomorrow's capability.
01 / transformation map
A functioning business, held back by its foundations
Web / mobileNew access
API gatewayControlled seam
Legacy desktop appWindows / on-premise
OrdersDomain
InventoryDomain
AnalyticsRead model
Legacy databaseTransactional core
Excel reportsManual export
Manual processesRepeated entry
02 / a staged path
01 / 05Choose a phase to inspect the decision.
Phase 1 / Foundation
Put APIs around what already works
Expose the legacy system through a controlled seam. Existing staff can keep working while new channels get a stable contract.
API gateway Authentication boundary Observability
03 / business problems
IllustrativeStart with the constraint, not the technology.
What changed
- Moved reporting workload away from the transactional database
- Introduced optimized queries and a reporting data layer
- Added caching where appropriate
Transactional DBReporting layerCached views
ResultReports generated in minutes.
Every step assumes compatibility, security, observability, and a rollback plan. The old system is not treated as disposable. It is treated as a business dependency to manage responsibly.