The frustrations associated with the green-screen user interface are legendary and universal. Although a green-screen does indeed provide a superb heads-down data entry experience, that isn’t the point. Despite the positives the green-screen offers, the overwhelming negative is that the green-screen is used, almost universally, as a measure of the quality of the application.
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The IBM i Challenge White Paper
In the ’90s the AS/400 platform became one of IBM’s greatest success stories. A symbiotic relationship between platforms, vendors, and independent software vendors (ISVs) proved to be a critical success factor for both the platform and the application providers. The value propositions of the IBM i platform and the advantage over alternatives, led many enterprises and ISVs to develop vertical applications based on IBM i.