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This work is licensed under a Creative Commons |
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This work is licensed under a Creative Commons |
| Date | Subject | Slides | Required Reading | Resources |
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INFOSYS
Ray
Three hours of lecture, one hour of Laboratory per week. The Extensible Markup Language (XML), with its ability to define formal structural and semantic definitions for metadata and information models, is the key enabling technology for information services and document-centric business models that use the Internet and its family of protocols. This course introduces XML syntax, styles and transformations, and schema languages. It balances conceptual topics with practical skills for designing and implementing conceptual models as XML schemas.
http://dret.net/lectures/xml-fall06/majordomo@sims.berkeley.edusubscribe i242242.xml for importing the syllabus into SylViAtoc.html for displaying the summary on the course's Web pagea(all slides), and
s(smaller font) a couple of times
http://dret.net/glossary/http://dret.net/biblio/understandHTML pages
dead ends
dead end(from a machine's point of view)
online
understandingis the key term here: application semantics!
SGML on the Web
XML is the ASCII for the 21st century
security through obscurityprinciple inadvertently
understoodto make the mapping
self-describing
self-explanatory
describing
self-describing
self-describingand
self-explanatory?
self-describingmeans, you can guess a lot, but you maybe wrong
viewsof the same content)
bad XML, complain about it
reusable shared concepts
majordomo@sims.berkeley.edusubscribe i242XML documents can use a wide array of characters. They are defined by Unicode, which currently (Version 5.0) defines more than 100'000 characters (#100'000 added in 2005).
encoded?
<?xml version="1.0" encoding="UTF-8"?>http://dret.net/netdret/mailto:dret@ischool.berkeley.edutel:+1-510-6432253urn:ietf:rfc:2648
<address><city>Berkeley</city><zip>94709</zip>...)<givenname>Erik</givenname><givenname>Thomas</givenname>)content
<opens a tag
&name; for referring to entity name<, >, &, ', "<elem attr="Single ' and Double ""/>Attribute using both kinds of quotes: <elem attr="Single ' and Double ""/>]]>
The term Mixed content in XML refers to elements which have text content mixed with elements. What these elements do depends on the elements 
, but the important point is that they are on the same level as the text nodes of the mixed content.
The term Mixed content in XML refers to elements which have text content mixed with elements. What these elements do depends on the elements
not really content
Whitespace can be very important!
Whitespace can be very important!]]>
statesof documents, well-formed and valid
contains or points to markup declarations that provide a grammar for a class of documents
<!ELEMENT xml EMPTY> thus is a complete DTD<!... > syntaxELEMENT is used to define an elementATTLIST is used to define an attribute listENTITY is used to define an entity,|?+*<!ELEMENT x (#PCDATA | a | b | ...)* >CDATA means any character string (but no markup)(data|ref|object) (list of XML names)ID for identifying elements (part of IDREF for referencing identified elements (part of simulated
#REQUIRED means the attribute has to be specified (on every element)#IMPLIED marks an optional attribute (the parser may imply a value)"..." specifies a default value (and the attribute is optional)ID is an attribute type declared in the DTDxml:id is an attempt to support schema-independent IDs
XSLidy can generate links to sections such as the section about , this link is then translated into the appropriate HTML code, meaning a link with the target being a fragment identifier to the slide number.
XSLidy can generate links to sections such as the section about , this link is then translated into the appropriate HTML code, meaning a link with the target being a fragment identifier to the slide number.]]>
After running XSLidy, the following HTML is generated:
XSLidy can generate links to sections such as the section about ID/IDREF, this link is then translated into the appropriate HTML code, meaning a link with the target being a fragment identifier to the slide number.]]>
&entity-name;☺ or ☺ = ☺%entity-name;duct tape, not elegant, but effective
onor
off
On XML Language Design
uglyXML, or which may lead to problems in components further processing the XML. The topic of this lecture thus is to look at design guidelines for XML schemas, leading to
goodXML. Some of the simpler topics cover basic questions of how to map a data model to XML markup (e.g., when to use elements or attributes). The next question is how data should be represented in XML so that applications can process it efficiently. We also look at what part of the markup an application will actually have access to, and this is defined by the XML Information Set (Infoset), the specification underlying many XML technologies.
the markup is the model
first version
generated
address may be used for employee as well as for customermetadata, an attribute may be a good choice
relevant?
<phone>+1-510-6432253</phone><phone cc="1" area="510" local="6432253"/>attribute values in single quotes should be ignored
empty elements using empty element tags have a special meaning
same objectivebehind the same markup
<elem></elem> vs. <elem/>)pollutedby layout information
CSS namespace
deprecated
quotes:
table { display: table }
tr { display: table-row }
thead { display: table-header-group }
tbody { display: table-row-group }
tfoot { display: table-footer-group }
col { display: table-column }
colgroup { display: table-column-group }
td, th { display: table-cell }
caption { display: table-caption }
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XML NamespacesSpecification
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http://dret.net/lectures/xml-fall06/urn:ietf:rfc:2648 (RFC 2648)tag:9327493874329 (RFC 4151)Clark notationis useful:
{http://www.w3.org/1999/xhtml}html)local
