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Emulated Tests vs. Real Tests: Why Emulation Fails Where Risk Is Highest

Mainframe modernization rarely fails because of a lack of technology, but because of too many assumptions. In mission-critical environments, it is not enough to validate whether something works. You need to ensure that it will continue to work under real load, with real data, and real dependencies.

This is where the difference between emulated testing and real testing stops being a technical matter and becomes a direct decision about operational risk.

MIPS vs. Business Value: How to Scale Mainframe Capacity in Line with Revenue Growth

Apr 13, 2026

The narrative that the mainframe is an obsolete platform does not hold up when we look at the infrastructure of the world’s largest economies.

With the launch of the IBM z17 and the Telum II processor—featuring AI accelerators embedded directly in hardware—the mainframe reaffirms its position as the central hub for high-volume transactions.

Mainframe Modernization: How to Reduce Sprint Cycles by 43% on z/OS

Apr 6, 2026

For years, the narrative has been the same: the problem with the mainframe lies in the language, the legacy, the difficulty to evolve. In practice, the most critical bottleneck lies elsewhere: the environment.

Mainframe Modernization: How to Seamlessly Integrate with Any Cloud Provider

Mar 30, 2026

Eccox’s vision focuses on the platform’s long-term strategic value: modernizing does not mean abandoning z/OS—it means integrating it with modern storage to reduce costs and increase agility in accessing information.

The State of Mainframe Modernization in 2026: Strategic Beyond the “Hype”

Mar 23, 2026

After years of failed full-scale migration attempts, corporations have come to understand that the mainframe is not a relic of the past, but an indispensable core of trust in a data-saturated ecosystem.

21CS and Eccox Announce Strategic Alliance to Redefine Mainframe Innovation Across the Americas

Mar 4, 2026

21CS and Eccox are proud to announce a strategic bilateral alliance designed to accelerate the next phase of mainframe modernization across North America and Brazil. This partnership is not about product distribution. It is about enabling a new execution model for...