The Power of Stepping Through Code

Watching code execute instruction by instruction changes how mainframe developers approach debugging and modernization. For teams working with legacy systems, this kind of visibility makes a real difference. The traditional debugging challenge Most debugging in the mainframe world happens with limited visibility. You’re often working with decades-old code, maybe written by someone who retired years […]

Overengineering Tests vs. Shipping with Confidence

Mainframe teams often find themselves trapped in a cycle of defensive testing, building elaborate test suites that take longer to maintain than the code they’re meant to protect. When you can’t see what your code actually does during execution, the natural response is to test everything, just in case. Why mainframe testing gets overengineered The […]

To Sell or Not to Sell…That is THE Question

What tech founders should consider when they’re looking to turn the page. There’s a well-known saying in the entertainment industry: “You can’t make a living, but you can make a killing.” It reflects the unpredictable nature of success. One project might be successful while the next one struggles, making sustained achievement difficult. A similar perception […]

Frank Chu of Izzi Software Elected to SHARE Board as Director at Large

Leading information technology association selects IT specialist to promote education, networking, and leadership for global enterprise computing ecosystem  MINNEAPOLIS, August 25, 2025 — Izzi Software, a leading provider of innovative enterprise software solutions, is pleased to announce that Frank Chu, Software Engineer at subsidiary ColeSoft Marketing, has been elected to join the board of SHARE, […]

Painful Techniques Developers Use for Debugging … Until They Discover ColeSoft

Debugging on the mainframe can be a daunting task, often leading developers to resort to time-consuming and risky workarounds. While sometimes necessary, some workarounds can significantly impact delivery timelines and affect team morale. Before turning to solutions like ColeSoft’s z/XDC, developers often find themselves stuck in a cycle of inefficiency and frustration. Common Painful Techniques […]

The Importance of Midrange and Mainframe Systems in Modern Industries

We founded Izzi Software with the express purpose of acquiring innovative companies in the mainframe (IBM Z)  and midrange (IBM i) sectors. And one of the first questions we always get is why we are interested in these platforms? The answer is simple: in the rapidly evolving landscape of modern industries, the role of midrange […]

Invisible Assumptions in Mainframe Software Engineering

Teams need to look for hidden risks and blind spots they don’t realize they have. In the world of mainframe development, invisible assumptions can lead to hidden risks and blind spots that teams often don’t realize they have. These assumptions can be costly, as you can’t test what you can’t see. Understanding and addressing these […]

Finding bugs: Overlooking the obvious

How many times have you read your code and overlooked the obvious? It’s probably happened a lot because there are a number of common cognitive biases that lead even the best developers to miss bugs in their own code, even after multiple personal reviews. Why do these blind spots occur, how does mental fatigue and […]