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Question

Difficulty: MediumUnderstand the benefits of and strategies for migration to the AWS Cloud

EcoHarvest Co-op, a regional agricultural cooperative, is planning to migrate its operations to the AWS Cloud. During the application discovery phase, the IT team decides to decommission their legacy, on-premises billing application and replace it with a commercial Software-as-a-Service (SaaS) billing solution. Which migration strategy does this decision represent?

  1. RepurchasingAnswer
  2. B
    Replatforming
  3. C
    Rehosting
  4. D
    Refactoring

Answer

Repurchasing
The correct answer is Repurchasing. This migration strategy, sometimes called 'drop-and-shop', involves retiring an existing legacy application and replacing it with a new product, typically a Software-as-a-Service (SaaS) platform, or buying a different license.

Step-by-Step Solution

1
Analyze the migration scenario details.
The scenario describes a company decommissioning their legacy billing application and replacing it with a commercial Software-as-a-Service (SaaS) billing solution.
Identifying key actions like replacing legacy software with a SaaS model is essential to mapping the migration to the correct 6 Rs strategy.
2
Evaluate the 6 Rs migration strategies against the identified action.
Replacing a system with a different product (typically SaaS) is the definition of the Repurchasing strategy.
This confirms that the strategy is Repurchasing rather than Rehosting, Replatforming, or Refactoring.

Key Concept

AWS Cloud Migration Strategies (6 Rs)
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Topics

Understand the benefits of and strategies for migration to the AWS Cloud

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