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Gary Edwards

XML Production Workflows? Start with the Web and XHTML - 1 views

  • Challenges: Some Ugly Truths The challenges of building—and living with—an XML workflow are clear enough. The return on investment is a long-term proposition. Regardless of the benefits XML may provide, the starting reality is that it represents a very different way of doing things than the one we are familiar with. The Word Processing and Desktop Publishing paradigm, based on the promise of onscreen, WYSIWYG layout, is so dominant as to be practically inescapable. It has proven really hard to get from here to there, no matter how attractive XML might be on paper. A considerable amount of organizational effort and labour must be expended up front in order to realize the benefits. This is why XML is often referred to as an “investment”: you sink a bunch of time and money up front, and realize the benefits—greater flexibility, multiple output options, searching and indexing, and general futureproofing—later, over the long haul. It is not a short-term return proposition. And, of course, the returns you are able to realize from your XML investment are commensurate with what you put in up front: fine-grained, semantically rich tagging is going to give you more potential for searchability and recombination than a looser, more general-purpose approach, but it sure costs more. For instance, the Text Encoding Initiative (TEI) is the grand example of pouring enormous amounts of energy into the up-front tagging, with a very open-ended set of possibilities down the line. TEI helpfully defines a level to which most of us do not have to aspire.[5] But understanding this on a theoretical level is only part of the challenge. There are many practical issues that must be addressed. Software and labour are two of the most critical. How do you get the content into XML in the first place? Unfortunately, despite two decades of people doing SGML and XML, this remains an ugly question.
  • Practical Challenges In 2009, there is still no truly likeable—let alone standard—editing and authoring software for XML. For many (myself included), the high-water mark here was Adobe’s FrameMaker, substantially developed by the late 1990s. With no substantial market for it, it is relegated today mostly to the tech writing industry, unavailable for the Mac, and just far enough afield from the kinds of tools we use today that its adoption represents a significant hurdle. And FrameMaker was the best of the breed; most of the other software in decent circulation are programmers’ tools—the sort of things that, as Michael Tamblyn pointed out, encourage editors to drink at their desks. The labour question represents a stumbling block as well. The skill-sets and mind-sets that effective XML editors need have limited overlap with those needed by literary and more traditional production editors. The need to think of documents as machine-readable databases is not something that comes naturally to folks steeped in literary culture. In combination with the sheer time and effort that rich tagging requires, many publishers simply outsource the tagging to India, drawing a division of labour that spans oceans, to put it mildly. Once you have XML content, then what do you do with it? How do you produce books from it? Presumably, you need to be able to produce print output as well as digital formats. But while the latter are new enough to be generally XML-friendly (e-book formats being largely XML based, for instance), there aren’t any straightforward, standard ways of moving XML content into the kind of print production environments we are used to seeing. This isn’t to say that there aren’t ways of getting print—even very high-quality print—output from XML, just that most of them involve replacing your prepress staff with Java programmers.
  • Why does this have to be so hard? It’s not that XML is new, or immature, or untested. Remember that the basics have been around, and in production, since the early 1980s at least. But we have to take account of a substantial and long-running cultural disconnect between traditional editorial and production processes (the ones most of us know intimately) and the ways computing people have approached things. Interestingly, this cultural divide looked rather different in the 1970s, when publishers were looking at how to move to digital typesetting. Back then, printers and software developers could speak the same language. But that was before the ascendancy of the Desktop Publishing paradigm, which computerized the publishing industry while at the same time isolating it culturally. Those of us who learned how to do things the Quark way or the Adobe way had little in common with people who programmed databases or document-management systems. Desktop publishing technology isolated us in a smooth, self-contained universe of toolbars, grid lines, and laser proofs. So, now that the reasons to get with this program, XML, loom large, how can we bridge this long-standing divide?
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  • Using the Web as a Production Platform The answer, I think, is right in front of you. The bridge is the Web, a technology and platform that is fundamentally based on XML, and which many publishers are by now comfortably familiar with. Perhaps not entirely comfortably, but at least most publishers are already working with the Web; they already either know or have on staff people who understand it and can work with it. The foundation of our argument is this: rather than looking at jumping to XML in its full, industrial complexity, which seems to be what the O'Reilly-backed StartWithXML initiative[6] is suggesting, publishers instead leverage existing tools and technologies—starting with the Web—as a means of getting XML workflows in place. This means making small investments and working with known tools rather than spending tens of thousands of dollars on XML software and rarefied consultants. It means re-thinking how the existing pieces of the production toolchain fit together; re-thinking the existing roles of software components already in use. It means, fundamentally, taking the Web seriously as a content platform, rather than thinking of it as something you need to get content out to, somehow. If nothing else, the Web represents an opportunity to think about editorial and production from outside the shrink-wrapped Desktop Publishing paradigm.
  • Is the Web made of Real XML? At this point some predictable objections can be heard: wait a moment, the Web isn’t really made out of XML; the HTML that makes up most of the Web is at best the bastard child of SGML, and it is far too flaky/unstructured/underpowered to be taken seriously. We counter by arguing that although HTML on the Web exists in a staggering array of different incarnations, and that the majority of it is indeed an unstructured mess, this does not undermine the general principle that basic, ubiquitous Web technologies can make a solid platform for content management, editorial process, and production workflow.
  • With the advent of a published XML standard in the late 1990s came the W3C’s adoption of XHTML: the realization of the Web’s native content markup as a proper XML document type. Today, its acceptance is almost ubiquitous, even while the majority of actual content out there may not be strictly conforming. The more important point is that most contemporary Web software, from browsers to authoring tools to content management systems (from blogs to enterprise systems), are capable of working with clean, valid XHTML. Or, to put the argument the other way around, clean, valid XHTML content plays absolutely seamlessly with everything else on the Web.[7]
  • The objection which follows, then, will be that even if we grant that XHTML is a real XML document type, that it is underpowered for “serious” content because it is almost entirely presentation (formatting) oriented; it lacks any semantic depth. In XHTML, a paragraph is a paragraph is a paragraph, as opposed to a section or an epigraph or a summary.
  • n contrast, more “serious” XML document types like DocBook[8] or DITA-derived schemas[9] are capable of making semantic distinctions about content chunks at a fine level of granularity and with a high degree of specificity.
  • So there is an argument for recalling the 80:20 rule here. If XHTML can provide 80% of the value with just 20% of the investment, then what exactly is the business case for spending the other 80% to achieve that last 20% of value? We suspect the ratio is actually quite a bit steeper than 80:20 for most publishers.
  • Furthermore, just to get technical for a moment, XHTML is extensible in a fairly straightforward way, through the common “class” attribute on each element. Web developers have long leveraged this kind of extensibility in the elaboration of “microformats” for semantic-web applications.[10] There is no reason why publishers shouldn’t think to use XHTML’s simple extensibility in a similar way for their own ends.
  • XHTML, on the other hand, is supported by a vast array of quotidian software, starting with the ubiquitous Web browser. For this very reason, XHTML is in fact employed as a component part of several more specialized document types (ONIX and ePub among them).
  • Why re-invent a general-purpose prose representation when XHTML already does the job?
  • It is worth pausing for a moment to consider the role of XHTML in the ePub standard for ebook content. An ePub file is, anatomically, a simply disguised zip archive. Inside the zip archive are a few standard component parts: there are specialized files that declare metadata about the book, and about the format of the book. And then there is the book’s content, represented in XHTML. An ePub book is a Web page in a wrapper.
  • To sum up the general argument: the Web as it already exists presents incredible value to publishers, as a platform for doing XML content management with existing (and often free) tools, and without having to go blindly into the unknown. At this point, we can offer a few design guidelines: prefer existing and/or ubiquitous tools over specialized ones wherever possible; prefer free software over proprietary systems where possible; prefer simple tools controlled and coordinated by human beings over fully automated (and therefore complex) systems; play to our strengths: use Web software for storing and managing content, use layout software for layout, and keep editors and production people in charge of their own domains.
  • Putting the Pieces Together: A Prototype
  • At the SFU Master of Publishing Program, we have been chipping away at this general line of thinking for a few years. Over that time, Web content management systems have been getting more and more sophisticated, all the while getting more streamlined and easier to use. (NB: if you have a blog, you have a Web content management system.) The Web is beginning to be recognized as a writing and editing environment used by millions of people. And the ways in which content is represented, stored, and exchanged online have become increasingly robust and standardized.
  • The missing piece of the puzzle has been print production: how can we move content from its malleable, fluid form on line into the kind of high-quality print production environments we’ve come to expect after two decades of Desktop Publishing?
  • Anyone who has tried to print Web content knows that the existing methods leave much to be desired (hyphenation and justification, for starters). In the absence of decent tools for this, most publishers quite naturally think of producing the print content first, and then think about how to get material onto the Web for various purposes. So we tend to export from Word, or from Adobe, as something of an afterthought.
  • While this sort of works, it isn’t elegant, and it completely ignores the considerable advantages of Web-based content management.
  • Content managed online is stored in one central location, accessible simultaneously to everyone in your firm, available anywhere you have an Internet connection, and usually exists in a much more fluid format than Word files. If only we could manage the editorial flow online, and then go to print formats at the end, instead of the other way around. At SFU, we made several attempts to make this work by way of the supposed “XML import” capabilities of various Desktop Publishing tools, without much success.[12]
  • In the winter of 2009, Adobe solved this part of the problem for us with the introduction of its Creative Suite 4. What CS4 offers is the option of a complete XML representation of an InDesign document: what Adobe calls IDML (InDesign Markup Language).
  • The IDML file format is—like ePub—a simply disguised zip archive that, when unpacked, reveals a cluster of XML files that represent all the different facets of an InDesign document: layout spreads, master pages, defined styles, colours, and of course, the content.
  • IDML is a well thought-out XML standard that achieves two very different goals simultaneously: it preserves all of the information that InDesign needs to do what it does; and it is broken up in a way that makes it possible for mere mortals (or at least our Master of Publishing students) to work with it.
  • What this represented to us in concrete terms was the ability to take Web-based content and move it into InDesign in a straightforward way, thus bridging Web and print production environments using existing tools and skillsets, with a little added help from free software.
  • We would take clean XHTML content, transform it to IDML-marked content, and merge that with nicely designed templates in InDesign.
  • The result is an almost push-button publication workflow, which results in a nice, familiar InDesign document that fits straight into the way publishers actually do production.
  • Tracing the steps To begin with, we worked backwards, moving the book content back to clean XHTML.
  • The simplest method for this conversion—and if you want to create Web content, this is an excellent route—was to use Adobe’s “Export to Digital Editions” option, which creates an ePub file.
  • Recall that ePub is just XHTML in a wrapper, so within the ePub file was a relatively clean XHTML document. It was somewhat cleaner (that is, the XHTML tagging was simpler and less cluttered) than InDesign’s other Web-oriented exports, possibly because Digital Editions is a well understood target, compared with somebody’s website.
  • In order to achieve our target of clean XHTML, we needed to do some editing; the XHTML produced by InDesign’s “Digital Editions” export was presentation-oriented. For instance, bulleted list items were tagged as paragraphs, with a class attribute identifying them as list items. Using the search-and-replace function, we converted such structures to proper XHTML list and list-item elements. Our guiding principle was to make the XHTML as straightforward as possible, not dependent on any particular software to interpret it.
  • We broke the book’s content into individual chapter files; each chapter could then carry its own basic metadata, and the pages conveniently fit our Web content management system (which is actually just a wiki). We assembled a dynamically generated table of contents for the 12 chapters, and created a cover page. Essentially, the book was entirely Web-based at this point.
  • When the book chapters are viewed online, they are formatted via a CSS2 stylesheet that defines a main column for content as well as dedicating screen real estate for navigational elements. We then created a second template to render the content for exporting; this was essentially a bare-bones version of the book with no navigation and minimal styling. Pages (or even the entire book) can be exported (via the “Save As...” function in a Web browser) for use in either print production or ebook conversion. At this point, we required no skills beyond those of any decent Web designer.
  • Integrating with CS4 for Print Adobe’s IDML language defines elements specific to InDesign; there is nothing in the language that looks remotely like XHTML. So a mechanical transformation step is needed to convert the XHTML content into something InDesign can use. This is not as hard as it might seem.
  • Both XHTML and IDML are composed of straightforward, well-documented structures, and so transformation from one to the other is, as they say, “trivial.” We chose to use XSLT (Extensible Stylesheet Language Transforms) to do the work. XSLT is part of the overall XML specification, and thus is very well supported in a wide variety of tools. Our prototype used a scripting engine called xsltproc, a nearly ubiquitous piece of software that we found already installed as part of Mac OS X (contemporary Linux distributions also have this as a standard tool), though any XSLT processor would work.
  • In other words, we don’t need to buy InCopy, because we just replaced it with the Web. Our wiki is now plugged directly into our InDesign layout. It even automatically updates the InDesign document when the content changes. Credit is due at this point to Adobe: this integration is possible because of the open file format in the Creative Suite 4.
  • We wrote an XSLT transformation script[18] that converted the XHTML content from the Web into an InCopy ICML file. The script itself is less than 500 lines long, and was written and debugged over a period of about a week by amateurs (again, the people named at the start of this article). The script runs in a couple of seconds, and the resulting .icml file can then be “placed” directly into an InDesign template. The ICML file references an InDesign stylesheet, so the template file can be set up with a house-styled layout, master pages, and stylesheet definitions for paragraphs and character ranges.
  • Rather than a public-facing website, our system relies on the Web as a content management platform—of course a public face could easily be added.
  • It should be noted that the Book Publishing 1 proof-of-concept was artificially complex; we began with a book laid out in InDesign and ended up with a look-alike book laid out in InDesign. But next time—for instance, when we publish Book Publishing 2—we can begin the process with the content on the Web, and keep it there throughout the editorial process. The book’s content could potentially be written and edited entirely online, as Web content, and then automatically poured into an InDesign template at proof time. “Just in time,” as they say. This represents an entirely new way of thinking of book production. With a Web-first orientation, it makes little sense to think of the book as “in print” or “out of print”—the book is simply available, in the first place online; in the second place in derivative digital formats; and third, but really not much more difficult, in print-ready format, via the usual InDesign CS print production system publishers are already familiar with.
  • Creating Ebook Files Creating electronic versions from XHTML source is vastly simpler than trying to generate these out of the existing print process. The ePub version is extremely easy to generate; so is online marketing copy or excerpts for the Web, since the content begins life Web-native.
  • Since an ePub file is essentially XHTML content in a special wrapper, all that is required is that we properly “wrap” our XHTML content. Ideally, the content in an ePub file is broken into chapters (as ours was) and a table of contents file is generated in order to allow easy navigation within an ebook reader. We used Julian Smart’s free tool eCub[19] to simply and automatically generate the ePub wrapper and the table of contents. The only custom development we did was to create a CSS stylesheet for the ebook so that headings and paragraph indents looked the way we wanted. Starting with XHTML content, creating ePub is almost too easy.
  • today, we are able to put the process together using nothing but standard, relatively ubiquitous Web tools: the Web itself as an editing and content management environment, standard Web scripting tools for the conversion process, and the well-documented IDML file format to integrate the layout tool.
  • Our project demonstrates that Web technologies are indeed good enough to use in an XML-oriented workflow; more specialized and expensive options are not necessarily required. For massive-scale enterprise publishing, this approach may not offer enough flexibility, and the challenge of adding and extracting extra semantic richness may prove more trouble than it's worth.
  • But for smaller firms who are looking at the straightforward benefits of XML-based processes—single source publishing, online content and workflow management, open and accessible archive formats, greater online discoverability—here is a way forward.
  • The result is very simple and easy to use. Our demonstration requires that a production editor run the XSLT transformation script manually, but there is no reason why this couldn’t be built directly into the Web content management system so that exporting the content to print ran the transformation automatically. The resulting file would then be “placed” in InDesign and proofed.
  • The final piece of our puzzle, the ability to integrate print production, was made possible by Adobe's release of InDesign with an open XML file format. Since the Web's XHTML is also XML, is can be easily and confidently transformed to the InDesign format.
  • Such a workflow—beginning with the Web and exporting to print—is surely more in line with the way we will do business in the 21st century, where the Web is the default platform for reaching audiences, developing content, and putting the pieces together. It is time, we suggest, for publishers to re-orient their operations and start with the Web.
  • Using the Web as a Production Platform
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    I was looking for an answer to a problem Marbux had presented, and found this interesting article.  The issue was that of the upcoming conversion of the Note Case Pro (NCP) layout engine to the WebKit layout engine, and what to do about the NCP document format. My initial reaction was to encode the legacy NCP document format in XML, and run an XSLT to a universal pivot format like TEI-XML.  From there, the TEI-XML community would provide all the XSLT transformation routines for conversion to ODF, OOXML, XHTML, ePUB and HTML/CSS. Researching the problems one might encounter with this approach, I found this article.  Fascinating stuff. My take away is that TEI-XML would not be as effective a "universal pivot point" as XHTML.  Or perhaps, if NCP really wants to get aggressive; IDML - InDesign Markup Language. As an after thought, i was thinking that an alternative title to this article might have been, "Working with Web as the Center of Everything".
Paul Merrell

Google Gets Semantic - Google Blog - InformationWeek - 0 views

  • While most emerging technologies tend to happen quickly, one that has been "emerging" for a really long time is the Semantic Web. However, Google's recent acquisition of Metaweb may be the signal that the Semantic Web has finally arrived.
  • Metaweb's Freebase is definitely semantic, and the fact that Google has acquired the company could signal an increased focus on the Semantic Web within Google, something they have not always been that interested in.If Google increases the profile of Freebase, and begins incorporating more semantic technologies within their other services, it could finally offer the deep deployment that has always been missing in order for the Semantic Web to take off.
Gary Edwards

Readability / Clearly - Article Publishing Guidelines - Readability - 1 views

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    Want to know how Evernote Clearly and Amazon Kindle Web Reader work?  This is it.  Both are made by Readability and in this guideline for Web publishers, they explain how they rip and parse a Web page.  The secret is solid HTML5!!!  "The following is a proposed standard for bringing more semanticity to articles on the Web. In our efforts to provide quality content without the superfluous leavings, we've seen that the Web is a pretty messy place. We hope that by providing some simple guidelines we can help publishers make their content a little more presentable with Readability while also making the Web a bit more semantic. By and large, you'll find that our guidelines just follow other specifications. We lean heavily on the work of the hNews microformat as well as the new elements provided within HTML5. If anything is unclear, please refer to the hNews microformat specification as well as this handy guide to semantic elements in html5, from Mark Pilgrim's Dive into HTML5. "
Paul Merrell

Sig.ma - Live views on the Web of Data - Sindice Blog - 0 views

  • While Sig.ma is by no mean the first data aggregator for the Semantic Web, its contribution is to show that the sum is really bigger than the single parts and exciting possibilities lie in a holistic approach for automatic semistructured data discovery and consolidation. In Sig.ma, elements such as large scale semantic web indexing, logic reasoning, data aggregation heuristics, pragmatic ontology alignments and, last but not least, user interaction and refinement, all play together to provide entity descriptions which become live, embeddable data mash ups.
    • Paul Merrell
       
      Interesting experimental data aggregator for the Semantic Web. 7-minute video is well worth the watch.
Gary Edwards

Needlebase - 2 views

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    Move over FlipBoard and QWiki and meet Needle.  The emerging market space for automating the process of collecting Web information to analyse, re-purpose and re-publish is getting crowded.   Needle is designed to: acquire data from multiple sources:  A simple tagging process quickly imports structured data from complex websites, XML feeds, and spreadsheets into a unified database of your design.merge, deduplicate and cleanse: Needle uses intelligent semantics to help you find and merge variant forms of the same record.  Your merges, edits and deletions persist even after the original data is refreshed from its source. merge, deduplicate and cleanse: Needle uses intelligent semantics to help you find and merge variant forms of the same record.  Your merges, edits and deletions persist even after the original data is refreshed from its source. build and publish custom data views: Use Needle's visual UI and powerful query language to configure exactly your desired view of the data, whether as a list, table, grid, or map.  Then, with one click, publish the data for others to see, or export a feed of the clean data to your own local database. Flipboard is famous for the slick republishing / packaging process focused on iOS devices.  Allows end users to choose sources. QWiki takes republishing to the extreme, blending voice over (from wikipedia text) with a slide show of multimedia information.  Edn user does not yet have control and selection of information sources with QWiki. The iOS Sports Illustrated app seems to be the starting point for "immersive webzines", with the NY Times close behind.  Very very slick packaging of basic Web information. Flipboard followed the iOS re-publishing wave with an end-user facing immersive webzine packaging design.  And now we have Needle. Still looking for a business document FlipBoard, where a "project" is packaged in a FlipBoard immersive container.  The iPack would be similar to an iPUB book with the added featur
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    Note: On April 12th, 2011 Needle was acquired by Google.
Gary Edwards

Modernizr: A JavaScript Library for Open Web HTML5-CSS3 technologies - 1 views

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    Modernizr is a small and simple JavaScript library that helps you take advantage of emerging web technologies (CSS3, HTML 5) while still maintaining a fine level of control over older browsers that may not yet support these new technologies. Modernizr uses feature detection to test the current browser against upcoming features like rgba(), border-radius, CSS Transitions and many more. These are currently being implemented across browsers and with Modernizr you can start using them right now, with an easy way to control the fallbacks for browsers that don't yet support them. Additionally, Modernizr creates a self-titled global JavaScript object which contains properties for each feature; if a browser supports it, the property will evaluate true and if not, it will be false. Lastly, Modernizr also adds support for styling and printing HTML5 elements. This allows you to use more semantic, forward-looking elements such as , and without having to worry about them not working in Internet Explorer. Another great catch by Marbux!  He's on fire today.
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    [Blush.] Should be mentioned that Modernizr comes with an MIT-BSD dual license. So compatible with both GPL and proprietary apps.
Paul Merrell

RDFa API - 0 views

  • RDFa APIAn API for extracting structured data from Web documentsW3C Working Draft 08 June 2010
  • RDFa [RDFA-CORE] enables authors to publish structured information that is both human- and machine-readable. Concepts that have traditionally been difficult for machines to detect, like people, places, events, music, movies, and recipes, are now easily marked up in Web documents. While publishing this data is vital to the growth of Linked Data, using the information to improve the collective utility of the Web for humankind is the true goal. To accomplish this goal, it must be simple for Web developers to extract and utilize structured information from a Web document. This document details such a mechanism; an RDFa Document Object Model Application Programming Interface (RDFa DOM API) that allows simple extraction and usage of structured information from a Web document.
  • This document is a detailed specification for an RDFa DOM API. The document is primarily intended for the following audiences: User Agent developers that are providing a mechanism to programatically extract RDF Triples from RDFa in a host language such as XHTML+RDFa [XHTML-RDFA], HTML+RDFa [HTML-RDFA] or SVG Tiny 1.2 [SVGTINY12], DOM tool developers that want to provide a mechanism for extracting RDFa content via programming languages such as JavaScript, Python, Ruby, or Perl, and Developers that want to understand the inner workings and design criteria for the RDFa DOM API.
Gary Edwards

The future of enterprise data in a radically open and Web-based world | Hinchcliffe - 0 views

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    Dion Hinchcliffe has posted a lengthy discussion on the future of Open Data and the Open Web.  He identifies three Open Web methods for accessing and working with Open Data; WOA, API's and Linked Data.  These methods are discussed in the context of SOA and the re-engineering of enterprise business systems.  Great stuff.  Dion also provides an excellent chart describing his vision of how these things fit together. Excerpt: "Open data holds up the promise of instant connectivity between arbitrary numbers of ad hoc partners while at the same time reducing integration costs, improving transparency, harnessing external innovation, and even (perhaps especially) creating entirely new and significant business models. I sometimes refer to these as "open supply chains", and the term is highly descriptive when it comes to the potential for open data models to make cloud computing safe and interoperable, help journalists to do their jobs better, or create multi-million dollar new lines of business, such as Amazon's well-known Web Services division."
Paul Merrell

W3C Issues Report on Web and Television Convergence - 0 views

  • 28 March 2011 -- The Web and television convergence story was the focus of W3C's Second Web and TV Workshop, which took place in Berlin in February. Today, W3C publishes a report that summarizes the discussion among the 77 organizations that participated, including broadcasters, telecom companies, cable operators, OTT (over the top) companies, content providers, device vendors, software vendors, Web application providers, researchers, governments, and standardization organizations active in the TV space. Convergence priorities identified in the report include: Adaptive streaming over HTTP Home networking and second-screen scenarios The role of metadata and relation to Semantic Web technology Ensuring that convergent solutions are accessible. Profiling and testing Possible extensions to HTML5 for Television
Gary Edwards

HTML 5: The Markup Language - 0 views

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    The stripped down "HTML Author" version of the 900 page HTML5 specification.   The bulk of the spec targets "implementers" such as browsers and editors.  It's very exacting and should provide for an unprecedented universal interoperability. Introduction:  This specification provides the details necessary for producers of HTML content to create conformant documents, and for others to wcheck the conformance of existing documents. It is designed: to describe the syntax and structure of the HTML language to describe the semantics of HTML elements and their attributes (that is, to describe what the elements and attributes represent) to be clear and unambiguous to be as concise and readable as possible Certain purposes are intentionally out of scope for this specification; in particular, it: does not provide any conformance criteria for HTML consumers; in particular, it does not attempt to define how Web browsers and other user agents process documents does not define any APIs related to processing of HTML content by HTML consumers. does not attempt to be a tutorial or "how to" authoring guide
Paul Merrell

The Strongest Link: Libraries and Linked Data - 0 views

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    See also Wikipedia on Linked Data: http://en.wikipedia.org/wiki/Linked_Data
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