Make modernization a sequence of decisions.

Map the current environment.

Document the application, its dependencies, data flows, deployment process, and operational owners. Start with what is known and identify the gaps that need investigation.

Prioritize the problem that matters.

Distinguish an application limitation from an infrastructure issue or an unclear operating process. State the impact and the evidence behind it. This helps avoid changing architecture without a defined reason.

Include cost and ownership.

Bring resource usage, recurring costs, support responsibilities, and access requirements into the review. A proposed architecture should explain who will operate it and what assumptions drive the cost estimate.

Plan a stage that can be reviewed.

Choose a manageable change, define its dependencies, and describe the verification and rollback approach. Avoid treating the whole environment as one indivisible migration.

Make handover part of delivery.

Prepare documentation, monitoring expectations, deployment instructions, and an ownership map. The environment needs to remain understandable after the project ends.