What is the term for a migration strategy that keeps the application on-premises rather than moving it to the cloud?

The term for a migration strategy that keeps the application on-premises is "Retain." This strategy involves deciding not to migrate certain applications or data to the cloud, often due to regulatory compliance, latency issues, or specific business requirements that necessitate keeping critical systems locally.

When organizations assess their applications for cloud migration, they may determine that some should remain on-premises to maintain control over sensitive data, ensure fast access, or comply with legal obligations. This decision is particularly relevant for applications that are heavily integrated with other on-premises systems or require specialized hardware that may not be fully available in a cloud environment.

The other choices pertain to different migration strategies or concepts. For instance, "Archive" relates to storing data in a manner that does not require constant access, often for long-term retention. "Lift and Shift" refers to moving applications to the cloud with minimal changes, primarily to benefit from cloud resources without altering the architecture significantly. "Cloud Burst" involves using cloud resources to handle surges in demand while maintaining the primary application infrastructure on-premises. Each of these terms indicates different approaches to cloud strategy rather than retaining applications on-premises.