Onion Diagram

See the following -

An Introduction to VISTA Architecture

Rick Marshall | VISTA Expertise Weblog | June 15, 2012

On Tuesday at 1:00 p.m. PDT I gave my first webinar, An Introduction to VISTA Architecture. It was in support of Fabián Lopez's webinar series for his VISTA Extensions Hub website, www.vxvista.org. It's the first in a series of webinars we'll be doing together, most of which will be about VISTA architecture, software lifecycle, and policy and planning.

Read More »

Chuck Hagel and the Secret War Over DOD & VA Electronic Health Records

Dan Vernon | FedScoop | August 12, 2014

...Today, the agencies are moving down separate modernization paths, with DOD working on its Defense Healthcare Management System Modernization program (DHMSM) and VA planning commercial acquisitions for the next generation of its Veterans Integrated System Technology Architecture, known as VistA. But analysts, including one of the founding developers of VistA, point to years of missed opportunities for DOD to leverage what many consider to be superior existing capabilities in VA’s VistA system — an ecosystem of modular application components that in most cases have become industry standards (VA’s troubled scheduling system notwithstanding)...

Read More »