What are the challenges of IBM i/AS400 green screen modernization?

The challenges of IBM i/AS400 green screen modernization include:

• Compatibility issues: Ensuring the new GUI integrates seamlessly with the existing backend without disrupting functionality.
• Cost and time: While modernization is less costly than a full rewrite, it still requires investment in expertise, tools, and testing.
• Data security: Ensuring the updated interface maintains the same security standards as the legacy system.
• Skill gaps: Modernization requires developers with expertise in both legacy systems and modern technologies, which can be hard to find.
• User resistance: Long-term users might resist changes, requiring additional training to adapt to the new interface.

These can be managed with the right strategy and expertise.