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BlogsTags > xmlA Matter of SemanticsBy Mike AmundsenMay 16, 2013 Messages on the Web carry three levels of information: Structure Semantics, Protocol Semantics, and Application Semantics. No matter the implementation style, all three of these are needed for any successful communication between client and server. This threesome (S-P-A) forms the … Stop standardizing HTMLBy Simon St. LaurentApril 24, 2013 When HTML first appeared, it offered a coherent if limited vocabulary for sharing content on the newly created World Wide Web. Today, after HTML has handed off most of its actual work to other specifications, it’s time to stop worrying … Math typesettingBy Adam HydeNovember 26, 2012 Typesetting math in HTML was for a long time one of those ‘I can’t believe that hasn’t been solved by now!’ issues. It seemed a bit wrong – wasn’t the Internet more or less invented by math geeks? Did they give … InDesign vs. CSSBy Adam HydeNovember 19, 2012 The explosion in web typesetting has been largely unnoticed by everyone except the typography geeks. One of the first posts that raised my awareness of this phenomenon was From Print to Web: Creating Print-Quality Typography in the Browser by Joshua Gross. It … Shrinking and stretching the boundaries of markup
By Simon St. LaurentAugust 14, 2012 It’s easy to forget that XML started out as a simplification process, trimming SGML into a more manageable and more parseable specification. Once XML reached a broad audience, of course, new specifications piled on top of it to create an … Applying markup to complexity
By Simon St. LaurentAugust 9, 2012 When XML exploded onto the scene, it ignited visions of magical communications, simplified document storage, and a whole new wave of application capabilities. Reality has proved calmer, with competition from JSON and other formats tackling a wide variety of problems, … XML's Dialect Problem - Diversity is not the problem; it is the requirement
By Rick JelliffeMarch 17, 2012 XML standards and technologies do not provide an adequate layer for coping with dialects. The agile upside of XMLBy Jenn WebbOctober 3, 2011 Frankfurt TOC presenters Anna von Veh, a consultant at Say Books, and Mike McNamara, managing director at Araman Consulting Ltd & Outsell-Gilbane UK Affiliate, discuss xml workflows, the (sorry) state of ebook design, and how books and the web will evolve. The agile upside of XML October 3, 2011 Frankfurt TOC presenters Anna von Veh, a consultant at Say Books, and Mike McNamara, managing director at Araman Consulting Ltd & Outsell-Gilbane UK Affiliate, discuss xml workflows, the (sorry) state of ebook design, and how books and the web will evolve. XML Schema development approaches - Can we free our documents from the straightjacket of structure?
By Rick JelliffeAugust 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 JelliffeJune 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 JelliffeJanuary 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 JelliffeDecember 8, 2010 Nuke is a mix of XML and JSON, with several new ideas thrown in. Four short links: 3 December 2010
By Nat TorkingtonDecember 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 JelliffeOctober 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
By Mac SlocumOctober 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. The gravitational pull of informationBy Mac SlocumOctober 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 StellmanOctober 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 JelliffeOctober 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
By Nat TorkingtonOctober 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 JelliffeSeptember 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... Vale Java? Scala Vala palava - and Go too
By Rick JelliffeAugust 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 JelliffeAugust 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 JelliffeAugust 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 JelliffeJuly 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 JelliffeJuly 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 JelliffeJuly 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 JelliffeJune 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 JelliffeJune 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 StellmanJune 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 JelliffeJune 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... Ruby Schematron
By Rick JelliffeJune 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... Australian Government procurement policy on Open Standard document formats - Open Source and Open Standards: Chicken and Egg or Apples and Oranges?
By Rick JelliffeJune 2, 2010 Over the last few years I have linked to various national government policies on Open Source software and procurement policies. But I see I omitted us in Australia. So here is what I can find, from 2005: Guide to Open... Four short links: 1 June 2010
By Nat TorkingtonJune 1, 2010 XML in Legislature/Parliament Environments (Sean McGrath) -- quite detailed background on the use of XML in legislation drafting systems, and the problems caused by convention in that world--page/line number citations, in particular. (Quick gloat: NZ's legislature management system is kick-ass, and soon we'll switch from print authoritative to digital authoritative) Large-Scale Social Media Analysis with Hadoop -- In this... EGovernment at the Legislature - From Emerald Isle to Emerald Slippers
By Rick JelliffeMay 29, 2010 Sean McGrath is writing a series around the design issues for KLISS (Kansas Legislative Information Services System) which his company is doing. 7 reasons to write in ActionScriptBy Jeffry HouserMay 26, 2010 There seemed to be some disagreement about my previous post on InsideRIA about moving your Flex Components from MXML to an ActionScript only base. The article was intended to teach readers about the Flex Component lifecycle; but backed into... Miguel de Icaza: we can't blame third parties for our failures
By Rick JelliffeMay 5, 2010 I wish I did not agree with Miguel de Icaza's blog from last month The Right Spirit. I interpret him as not meaning "you should" when he says "we should": I think he is not being dogmatic. Here are some... Tim O'Reilly State of the Internet Operating System - The consumers are restless
By Rick JelliffeMay 4, 2010 I usually don't link to posts here at oreilly.com (which kindly hosts this blog), but Tim O'Reilly has a strong pair of articles out: The State of the Internet Operating System in two parts: Part 1 and Handicapping the Internet... Harmonization
By Rick JelliffeMay 4, 2010 It strikes me that harmonization of XML standards (i.e. where you have different XML standards covering much the same ground and you want a workable strategy for converging them) needs to be as much concerned with granularity issues as it... Mock the Web ServiceBy Phlip PlumleeMay 4, 2010 This post shows how to write a web service using Test-Driven Development. Our source code example is the exemplary active_merchant contribution to Ruby on Rails. It reveals how developer tests can correctly attack remote web services. Programmers writing clients (or servers) for any kind of web service should use these techniques. My next post will extend this one into the Abstract Test Pattern. Getting started with the SplitViewController on the iPad
By Elisabeth RobsonApril 23, 2010 In this screencast, I show you how to build a simple iPad app using the new SplitViewController. As we build the app, you'll learn the basics of creating a SplitViewController-based app, and how to implement a simple XML reader to read an XML feed, display a list of article titles and load an article into the detail view when its title is tapped in the list. Announcing Schematron for Ant v3ᵝ - Plus some other OSS sites
By Rick JelliffeApril 22, 2010 The latest release for the Schematron for Ant (Java) task is now available at SCHEMATRON.COM. This is the third release of the Schematron for Ant task which has been through four or five different programmers' hands over the years. The... Eric Meijer's Confessions - Is Scala the FOSS Linq?
By Rick JelliffeApril 21, 2010 I have been looking at making parsers in Scala, to figure out a good way to get an expression validator for XPath2. Followed some links and arrived at a killer 2006 ICFP paper by Eric Meijer Confessions of a Used... A Sketch on Modeling Dialects of XML File Formats
By Rick JelliffeApril 20, 2010 Here is a thought experiment, which is a model of OOXML and its dialects. I could have chosen ODF or HTML. When we talk about OOXML sometimes we mean one if its formal specifications, sometimes we mean a particular package format, sometimes we mean what an application can generate or consume. This allows a tremendous amount of loose and futile talk about it. Family Tree of Schema Languages for XML (2010)
By Rick JelliffeApril 20, 2010 Since 1999 I have been updating a little diagram Family Tree of Schema Languages for XML. Here is the 2010 version. Here are links to different formats: PDF, PNG, JPEG. I have added entries for Schema Association, MCE, CSDL, OASIS... Can Schematron use grammars to test assertions?
By Rick JelliffeApril 19, 2010 A few thousand lines in C or Java. 1 line in XPath! Can Schematron use grammars to test assertions?
By Rick JelliffeApril 19, 2010 A few thousand lines in C or Java. 1 line in XPath! The XML Character Encoding Detection Routine in Different Programming Languages
By Rick JelliffeApril 16, 2010 The XML encoding detection routine is a nice single page size for comparing programming language capabilities related to simple scanning. Here are a few. Scala Python Java C++ search function definition for xmlSwitchInputEncodingInt PHP... Public draft of next generation of ISO Schematron available for comment - ISO/IEC CD 19757
By Rick JelliffeApril 15, 2010 The Committee Draft (CD) of the new version of ISO Schematron is now available at the ISO/IEC JTC1 SC34 SC34 Website. In the JTC1 workflow, this is the version that National Bodies comment on over the next 3 months. You... Representing and Calculating the Cost of Processing for an Electronic Document - Another use for Schematron
By Rick JelliffeApril 13, 2010 When you have a data supplier and a data consumer sending each other forms-type information (e.g. over the WWW) the supplier (lets call them the applicant) and the consumer (lets call them the institution) each have conflicting tactics for cost... 1 to 50 of 327 Next Stay Connected
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