XML RESOURCES New Modifications

XML RESOURCES
New Modifications: Document Type Definitions, Schemas, Encryption, Tutorials, Downloads

Since the Dot.com disaster that destroyed the valuable Extended Markup Language (XML) Resources New Millennium Software Engineering will establish XML Resources and resurrect the website!

Modifications to the W3C Standard radically changed the design of XML documents. One important change is the use of Schemas instead of Document Type Definitions(DTD). DTDs provided a structure for definitions of elements and attributes utilized within the XML document. However since DTDs concerned with markup rather than applications Schemas were born!

FORMAL SCHEMA:

	Provide a semantic framework for software systems that use the W3C XML Schema specification, such as the W3C XML Query Algebra.
	Specify names for all components of an XML Schema, so that they can be uniquely identified by URIs. Such unique identifiers may be useful to XML Query, RDF, and topic maps, among others.
	Formally define validation at a declarative level.
	Define the mapping from the current XML Schema syntax onto the structures described here, as well as the mapping between the XML Schema component mode and our component model.
	Establish constraints on the structure of content 1.Establish a content model for documents that defines the order and nesting of elements.
	2. Establish the data types of document data.

XML Query: Database access! Similar to Structured Query Language (SQL) calls for database access of tables of information.

Resource Description Framework (RDF): concerning information about data!

Previous attempts to use DTDs instead of schemas were limited by markup rather than application specific! This limitation was similar to Distributed Component Object Model (DCOM) without Microsoft Transaction System (MTS) that controlled the DCOM objects!.

DTD: A means of establishing schema for XML documents.

Sample schema

XML document!

Given the DTD a new XML enabled web browser Amya - New Web XML enabled browser adhering to the DTD!

Amaya lets users both browse and author Web pages!

Amaya is able to work on several documents at a time!

Amaya displays images including those in the PNG format, which is a more powerful graphics format than GIF and is being increasingly used on the WWW.

A critical factor in XML websites is Data Encription:

To solve the problem of encryption by keys a public-key (asymmetric) provides cryptography wherein every party to a communication has a public and private key that are inversely related to each other. Any message encrypted with the publicly available key can only be decrypted by its corresponding privately held key. Interestingly, this same relationship permits for public-key digital signatures wherein any person with the public key can confirm that a person with the corresponding private key used it to secure the message. Because symmetric (same) key cryptography is very efficient, confidential interactions frequently start by exchanging a symmetric key using asymmetric (public) key cryptography.

Capture the Hacker!

Have fun with the link!!

Parsing, Linking and communicating among modules! XML parsing initially missing from the specification required Java to accomplish the task. Given input in text, numeric or strings parsing must occur before transmitting the information to the server. Java provides parsing capability through a new set of modules available online by download! These programs parse the input, transmit the data to the linking modules that will provide data to transmit to servers or other xml or html webs on the internet! These modules have been debugged and are available for download!

PDF: Adobe Acrobat Reader format:

XML TUTORIAL: ELEMENTS, ATTRIBUTES AND ENTITIES!

Website Examples:

Linking, DTD and element examples!

XML TUTORIAL

XML MARKUP:XSL

Examples, explanations and downloads!

XML, XSL, and XPATH

BUILD YOUR OWN PARSER

XML XSLT VERIFICATION FOR XML STYLESHEET FOR ANY XML DOCUMENT!

B2B Message Encryption

Java B2B and XML