Tags > xml

XML Schema development approaches - Can we free our documents from the straightjacket of structure?

By Rick Jelliffe
August 9, 2011

The way that people approach developing schemas has evolved over the years: each new approach grows out of problems with the status quo (see Hegelian dialectic) but enriches rather than supplants. I thought I would take a little walk through...

ETL and Publishing

By Rick Jelliffe
June 5, 2011

I have for a few years been trying to come up with a good definition of publishing workflows: as an architectural pattern. The two key distinctive features, I think, are that publishing workflows are one-way flows rather than two-way flows...

Australian Whole-of-Government Common Operating Environment Policy and OOXML - AGIMO boots OpenOffice but Libre Office reboots OpenOffice?

By Rick Jelliffe
January 28, 2011

Two big stories this week: AGIMO's COE and LibreOffice. AGIMO is the Australian Government Information Management Office. They are the ones who set policies such as requiring govt web page meet the W3C's WCAG 2.0 guidelines for accessibility, or that...

Nuke! - If I wanted an XML for 2010, what would its design be?

By Rick Jelliffe
December 8, 2010

Nuke is a mix of XML and JSON, with several new ideas thrown in.

Four short links: 3 December 2010 - Snake Oil, JSON v XML, Pac Man, and the Full Stack

By Nat Torkington
December 3, 2010

Data is Snake Oil (Pete Warden) -- data is powerful but fickle. A lot of theoretically promising approaches don't work because there's so many barriers between spotting a possible relationship and turning it into something useful and actionable. This is the pin of reality which deflates the bubble of inflated expectations. Apologies for the camel's nose of rhetoric poking...

Schema coverage report - SVRL to XSL and Ant

By Rick Jelliffe
October 23, 2010

You have a large or complex Schematron schema and it produces no errors. How do you know it is working? A coverage report lets you see how many of each Schematron rule was fired when checking the document(s). The report...

The gravitational pull of information - Bob Boiko on why designers and programmers should converge around content.

By Mac Slocum
October 18, 2010

Content creators, designers and programmers all speak slightly different languages. Bob Boiko believes that a focus on information -- its structure and its delivery -- can get everyone on the same page.

Understanding C#: Simple LINQ to XML examples (tutorial)

By Andrew Stellman
October 16, 2010

XML is one of the most popular formats for files and data streams that need to represent complex data. The .NET Framework gives you some really powerful tools for creating, loading, and saving XML files. And once you've got your hands on XML data, you can use LINQ to query anything from data that you created to an RSS feed. In this post, I'll show you two simple LINQ to XML tutorial style examples that highlight basic patterns that you can use to create or query XML data using LINQ to XML.

Under-estimating XML as just a Tree - Composition, primary structure, internal links, external links

By Rick Jelliffe
October 9, 2010

Programmers and academics often think and theorize about XML as kind of tree data structure. And so indeed it is. But it also allows much more: it is a series of different graph structures composed into or imposed on that tree.

Four short links: 8 October 2010 - Training Tricks, Visualizing Code, ASM+XML=ASMXML, and Poetic License

By Nat Torkington
October 8, 2010

Training Lessons Learned: Interactivity (Selena Marie Deckelmann) -- again I see parallels between how the best school teachers work and the best trainers. I was working with a group of people with diverse IT backgrounds, and often, I asked individuals to try to explain in their own words various terms (like “transaction”). This helped engage the students in a...

Do you need to make your own XSLT2 function definitions when using Schematron?

By Rick Jelliffe
September 27, 2010

Recently I have seen some Schematron schemas written by good XSLT programmers which basically represented all assertion tests as custom XSLT2 functions. (Schematron allows this.) The schemas were successful, in that they functioned as desired, but I don't think there...

How to Install MongoDB - What's new in O'Reilly Answers: Install MongoDB, using the iPhone's GPS interntionally, what to learn after HTML and CSS, and much more.

How to Install MongoDB - What's new in O'Reilly Answers: Install MongoDB, using the iPhone's GPS interntionally, what to learn after HTML and CSS, and much more.
By O'Reilly Media
September 16, 2010

In this excerpt from MongoDB: The Definitive Guide we offer a step by step guide on how to install MongoDB and get it up and running smoothly. Precompiled binaries are available for Linux, Mac OS X, Windows, and Solaris. On most platforms you can download the archive from mongodb.org, inflate it, and run the binary. The MongoDB server requires a directory it can write database files to and a port it can listen for connections on. The following section covers the entire install on the two variants of system: Windows and everything else (Linux, Max, Solaris). Read more.More from O'Reilly Answers:Using the iPhone's GPS internationallyI just learned HTML/CSS. Now what?Which Perl XML module should I use?5 ways to get music and video on your iPhone using iTunes Share knowledge, ask questions on O'Reilly Answers today.

Vale Java? Scala Vala palava - and Go too

By Rick Jelliffe
August 28, 2010

Dave Megginson (who drove the development of the SAX API that will be familiar to many XML developers who use Java) recently wrote Java is dead. Java stood out as a programming language (though not as a platform) in that...

UK PRESTO

By Rick Jelliffe
August 16, 2010

From the Cornell Law School's blog, Head of e-Services and Strategy at The (UK) National Archives, John Sheridan has written on the launch of Legislation.gov.uk. and mentioned this blog! A major influence on legislation.gov.uk was a blog posting by Rick...

Deliberate non-conformances in XML Schema implementations - Really, how could it be any other way?

By Rick Jelliffe
August 6, 2010

From SAXON's Michael Kay, on the XML-DEV mail list today: On interoperability, there are at least three reasons why you might get different results from different processors. One is because the specification leaves the behaviour of certain things implementation-defined (for...

Schema languages as if annotation mattered - with more on Operator Grammars

By Rick Jelliffe
July 26, 2010

In 2001 we had an interesting exchange about schema languages on the XML-DEV mail list. I had written Are we losing out because of grammars?. What do I think of it now? Four heads: disconnection, importance, a category error, and operator grammars.

ZVON: the Information Plunger

By Rick Jelliffe
July 9, 2010

I see the ZVON.org site has recently been renovated. It is a great site with tutorials or reference material on dozens of Web-related topics. Highly recommended. The site slogan is ZVON.org cleaning information pipelines but the logo says ZVON the...

Highly Generic Schemas - A schema is like an aircraft: it can be designed for stability or maneuverability but not both.

By Rick Jelliffe
July 7, 2010

Developer Christophe Lauret recently commented: "A schema is like an aircraft: it can be designed for stability or maneuverability but not both." I recently have been trying a different method for designing intermediate schemas in publication chains. It is an exercise in taking the three-layer model for XML with Schematron to an extreme. The best name I can think of this is Highly Generic Schemas.

ODF and OOXML Translation: Working Draft 2 of ISO technical report out - Scorecard of translatability

By Rick Jelliffe
June 28, 2010

The gnomes of ISO (err, ISO/IEC JTC1 SC34 WG5) have released the ">second draft of their Technical Report comparing ODF and OOXML (PDF). It is up to 126 pages now, and much more fleshed out than the first draft. One...

Is ZIP in the public domain or not?

By Rick Jelliffe
June 22, 2010

What is the IP status of ZIP? This is a question of interest to standardizers and developers implementing standards, because so many new standards use ZIP. ODF and OOXML for example. Here is what the current PKWARE site says (with...

Understanding C#: XML Comments

By Andrew Stellman
June 14, 2010

As C# developers get more experienced, there are a lot of things they pick up along the way that are really useful and important to know, even if they aren't necessarily directly code-related. One of those topics is XML comments, and I've been surprised at how many developers -- even really experienced ones -- don't use them, or even know about them. They're really useful, and they can help you build better software, even if they don't actually change the way your programs behave.

Europe to force all 'significant market players' to provide information necessary for interoperability?

By Rick Jelliffe
June 12, 2010

Three news items caught my interest this week. all slightly related: Dr. Neelie Kroes has made a significant speech How to get more interoperability in Europe on practical steps on interoperability and standards. She presents this as building on the...

The status quo *is* monopoly

By Rick Jelliffe
June 8, 2010

May was an interesting month, where the press' narrative finally caught up that the competitors to Microsoft who so robustly co-opted the anti-market-domination argument have found themselves now as market dominators. Of course, some of this will be Microsoft pushback....

Ruby Schematron

By Rick Jelliffe
June 4, 2010

Francesco Lazzarino has a project up at RubyForge for a Ruby runner for ISO Schematron. (Open source: MIT/ Consortium License) Schematron is a small ISO-standard language for making assertions or reports about patterns in and between XML documents, typically using...


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