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At a Glance: B. Tommie Usdin


My name is Tommie Usdin, and this is my personal web page. Please wander around, have a look, and drop me a line if you want to say hello.

I want to talk about several topics:

As is conventional, I also include a brief description of my professional capabilities and experience (Tommie's Quals).

Mulberry Technologies, Inc.

Mulberry Technologies, Inc. entered the world on April 1, 1996, and I have served as President since then. Mulberry started business in my house, then moved to a largely-abandoned office building, and now has offices in a cozy old building in historic Rockville, Maryland.

Mulberry is a consultancy specializing in XML for text or prose documents. You can read more about Mulberry at:


I like conferences. I like the occasion to step back from day to day business and getting projects done and think about the bigger picture. I like meeting a lot of people who do more or less the same things I do, or at least understand the world in which I work. I like writing conference presentations, because it forces me to articulate what I am thinking on some topic for people who may have a different point of view, and I love giving conference presentations where an informed audience questions my assumptions and conclusions.

Perhaps because I like conferences so much, I have been involved with managing several conferences over the years. I currently chair "Balisage: The Markup Conference" (more about that below). I co-chaired and later chaired GCA's SGML conferences from 1991 through 1997, and then "Markup Technologies" and then "Extreme Markup Langauges" conferences through 2007. I have spoken and taught at conferences as varied as JATS-Con, Markup UK, Seybold, ACH, Xplor, TEI Annual Conference, Tri-XML, XML 'XX, XML Dev Con, Inera's XUG, Typefi User Group, Java Developers, the DC XML User's Group, and the BioMed Central Freedom of Information Conference.

Balisage: The Markup Conference

Balisage: The Markup Conference. Balisage is a forum for discussion of all things markup. XML, SGML, overlapping structures, XSL, and RDF; the whole constellation of markup-related specifications and standards, their use and abuse; the theory of marked-up documents and the theory of marking-up documents; practical aspects of creating, managing, manipulating, and archiving marked-up content.

Balisage is an XML conference and a whole lot more. It isn't about the XML, but then XML is such old news that a conference that was really ABOUT XML would be a real bore. Balisage is about what we can, and more important what we can't quite, do with XML and other markup systems. It is about what we want to do with markup, how we want to do it, and solving the problems that prevent us from doing what we want to do with XML the way we want to do it.

Balisage is different from other XML conferences because at Balisage we delve in the details, we talk about unsolved problems, and sometimes we argue about approaches. This is not a sweetness-and-light don't-scare-the-paying-customers type conference; this is not a place for Vice Presidents of Marketing to flog products from the platform; this is not a place where sponsors can buy time on the program. And this is not the right conference for people who want to know what most people think or what usually works, or who want to learn about the safest approach to solving a common problem. Balisage is a conference for people who want to get into the weeds; who are comfortable stretching their view of markup; who are more interested in the expertise of speakers than in their (sometimes uneven) presentation skills; a conference for people who want to think seriously about markup and what you can do with it.

The Balisage Series on Markup Technologies

The Balisage Series on Markup Technologies is an series of electronic publications, freely available and designed to be stable and long-lived.


Some of the pictures I have taken are available on my Flickr photostream

See my qualifications (detailed resume)

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