Proprietary interfaces and operating models increase switching costs and dependency.
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Platform vendor lock-in occurs when technical, contractual, or economic dependencies make moving to another provider disproportionately costly or difficult.
The concept connects economic lock-in research with experience from cloud migration. NIST explicitly identifies portability and interoperability as important cloud properties and evaluation concerns.
A tenant can leave a flat with custom-built fixtures, but removal is expensive. Proprietary interfaces and data formats create a similar constraint.
Switching costs bind an organization to a platform provider.
Open interfaces, portable data, and exit tests preserve choice.
Dependencies appear in proprietary APIs, formats, skills, and contracts.
Early lock-in assessment protects negotiation leverage, resilience, and long-term cost control.
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