Answer to Question #255392 in Software Engineering for Tom

Question

What are the strategic options for legacy system evolution? When would you normally

replace all or part of a system rather than continue maintenance of the software?

Answer 1

The strategic options are listed below:

• Stop maintaining the legacy system and replace it with a new one
• Continue maintaining the system wasting money and resources
• Upgrade/update the legacy system for easier maintenance.

I would normally replace all or part of a system rather than continue maintenance of the software when the current state becomes a too heavy burden in terms of resources required to support it.