Strangler Pattern
Product term: Migration Pattern
Category: concept
Definition
A safe migration strategy for transforming legacy organizations to INOs. Instead of wholesale replacement, you "strangle" the legacy system piece by piece: wrap old systems with new INO interfaces, migrate teams gradually, and retire legacy components as new ones prove stable. Minimizes disruption and risk.
Key Points
- •Gradual legacy system replacement
- •Wrap old systems with new interfaces
- •Migrate piece by piece
- •Minimizes disruption
- •Reversible (can roll back)
- •Lower risk than rip-and-replace
Frequently Asked Questions
How long does strangler migration take?
Typically 1–2 years for a large enterprise. Smaller orgs: 3–6 months.
Do I need to shut down old systems?
Not immediately. Old and new run parallel during transition. Much safer.
What if something breaks?
You can roll back to the old system. That's the safety advantage of gradual migration.
Can I partially adopt INO?
Yes. You don't have to go full INO. Adopt Signal/Echo in one team, Team APIs in another, etc.
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