Modernise Without the Big-Bang Rewrite
Sep 10, 2026
The big rewrite is how most modernisation projects fail. There is a safer way. Here is how to replace a legacy system piece by piece, without betting the company on a single switch.
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The incremental path off legacy:
- Why big-bang rewrites fail so reliably
- The strangler-fig approach: replace around the edges, then the core
- Finding safe seams in a system nobody fully understands
- Keeping the business running the whole time
Chapters
0:00 Why the big rewrite fails
0:28 The trap of freezing a product
2:40 The strangler-fig approach
3:20 Layer by layer: UI, storage, deployment
4:43 Safe seams
5:35 A real example: a 1992 NASA C program
7:35 Two paths, one goal
7:57 Where to start
Concept to Cloud modernises legacy systems without the big-bang risk. Book a discovery call: https://concepttocloud.com/contact
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