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Mar15

Systems and Transplants

by zscott

Zane Scott, Vitech Vice President of Professional Services

I don’t usually write blogs from the first person point-of-view. It’s not my style. But the past two weeks brought about a conjunction of professional and personal topics that demanded a personal approach.

On Saturday, March 4, Dr. Thomas Starzl, 90, passed away in Pittsburgh, Pennsylvania. Dr. Starzl was a pioneer in the world of organ transplantation — particularly liver transplantation. Although kidney transplants had begun in the 1950s, Dr. Starzl was the first surgeon to attempt a liver transplant. He and his team at the University of Colorado tried that first operation in 1963. Despite the failure of that attempt, Starzl persisted, and in 1967, he performed the first successful liver transplant. Starzl would go on to pioneer advances in transplant techniques, immunology, and chimerism — the ability of the human body to accept foreign tissue without immune suppression therapy.  More...

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Categories: MBSE | Misc

Mar09

A Systems Engineer Grows Up

by jsili

By Jeff Sili, Vitech Principal Systems Engineer

Silicon Valley icon and industrial designer Steve Jobs had a favorite dictum when he spoke to young audiences. “Your work is going to fill a large part of your life, and the only way to be truly satisfied is to do what you believe is great work. And the only way to do great work is to love what you do.”

By way of introducing myself, I’d like to take you along as I reflect on my journey through the wilds of systems engineering, an adventure that has brought me to where I am today—the newest team member in Professional Services at Vitech.

I’m Jeff Sili, and I’ve been a systems engineer for nearly three decades. I hail from the "Rust Belt" near Cleveland, Ohio and had a great time growing up in a big, blue collar neighborhood. The community was interesting and diverse—a place where first and second generation grandparents were still speaking languages like German and Italian. My dad was a machinist-mechanic, and he gave me my first taste of what it was like to "take it all apart and put it back together again." As a teenager in the ’70s, I watched the collapse of the economy in big cities like Cleveland, the demise of steel and other industries and with them, jobs. More...

Mar02

Breaking Systems Engineering (and Three Ways to Bind the Fractures)

by dlong

By David Long, Vitech President

“The biggest errors are made on day one.” Sadly, those involved in systems engineering live this every day, but not necessarily in the manner we think. Though we strive to avoid this pitfall and address it in the systems we develop, the very way we approach our practice is often flawed. We break systems engineering from day one by our flawed practices, many times not even recognizing that we have done so.

In talks and tutorials, I frequently ask how many in the audience are applying a waterfall process. The general response is a hand or two timidly raised with the rest of the audience proudly asserting that they execute a spiral, incremental, or agile process – anything but waterfall. I then ask an individual “If I wanted to know about your requirements, who would I talk to?”  More...

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Categories: MBSE | Misc

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