The document discusses various options for modernizing applications, including rehosting, refactoring, rearchitecting, and rebuilding apps. Rehosting involves moving apps to cloud infrastructure with minimal changes. Refactoring leverages existing code while taking advantage of cloud capabilities. Rearchitecting involves major code revisions for cloud-native apps and microservices. Rebuilding apps is building new apps using cloud-native platforms from the ground up. The document provides benefits, definitions, considerations, and technologies for each option to help determine the best modernization approach.
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