API facades and the behavior behind the interface
A facade exposes a consumer contract over retained behavior. Translation and routing do not remove the operational obligations of the underlying application.
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Modernization patterns
Database-first migration: changing storage while retaining the client
Database-first migration replaces the data layer while retaining a client. The changed access path must preserve required queries, updates, and business meaning.
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How a strangler migration replaces a system incrementally
A strangler migration routes selected responsibilities from an existing implementation to replacements. Completion requires removing the old dependencies, not merely adding a facade.
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