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Legacy Displacement - online edit of handbook/troggle/trog2030.html

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<p>I don't think writing our own object/SQL code is sensible:
there is such a lot going on we would create a large volume of software even if we stick close to the metal.
[I could well be wrong. That is Option 1.]
<h3>[ Update March 2024 ]</h3>
"Legacy displacement" is now a fairly mature part of software engineering, though most computer science graduates won't have heard of it. There are standard ways of partially and incrementally retiring old systems and replacing them, while maintaining a live service to users throughout. See <a href="https://martinfowler.com/articles/patterns-legacy-displacement/">Legacy Displacement</a>.
<h3>Option 2</h2>
<p>