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Using smart and powerful filters to access data | Filters add value because they can easily do things that the existing 5250 application cannot do, and because they can be tailored to exactly match common end-user business processes. |
Consolidating information | Often 5250 applications require people working in warehouses and offices to extract information from multiple sources and consolidate it into management reports or use it for input to disparate and non-integrated applications. |
Integrating with desktop applications | Add value by integrating functionality such as e-mail that aids communications between users and customers, and MS-Excel that aids in reporting and analysis tasks. |
Reducing repetition and rekeying | Lots of 5250 applications still require users to rekey information because the underlying 5250 applications are not integrated. |
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The things listed above are simple examples of what is at the root of most effective business process re-engineering. It is about what you already have and then reusing it in a new improved way.
You need to consider all this at Stage 1: Creating a Modernization Framework.