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copied!<p>A handful of large healthcare software vendors use some version of MUMPS, definitely a non-SQL database. Epic, Meditech, GE, and the VA's VistA all use some implementation of MUMPS. MUMPS lends itself well to healthcare solutions in part because of its performance and scalability. </p> <p>I know that some MUMPS implementations (I'm thinking specifically of <a href="http://www.intersystems.com/cache/" rel="noreferrer">Intersystems Caché</a>) allow you to query the database with SQL, but that requires some in depth technical knowledge to map your non-relational data model to relational tables. </p> <p>I work for a large EMR vendor that uses MUMPS and I can tell you it's not a "fun" experience. By that I mean that there aren't great tools that allow me to whip up awesome features in a few lines of code (there's no LINQ-To-M in .NET). But I recognize that the price I pay in writing more code to query data is worth the marketshare. </p> <p>If you're starting an EMR business and designing your architecture, you need to think of your ultimate goals. If you're looking to create a full-fledged EMR that can span multiple areas and specialties, you'll need a LOT of features while still keeping an eye on performance, reliability, and scalability. You'll also need a few thousand developers to get your product to market ASAP because with the new Healthcare stimulus, the hospitals are buying <em>now</em>. </p> <p>If you're looking at a specialty niche application, where your user base will be small and focused, you can take your pick of any database technology, looking more for tooling and rapid development.</p>

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