Posting to Introduction to XML, etc.

After reading the four articles searched by Google Scholar, I learned that XML, or Extensible Markup Language is most commonly used via the World Wide Web. XML allows users to merge files to form compound documents, encode illustrations, provide processing control information to supporting programs and add editorial comments to a file. It describes the structure of a document. It is a formal language that can be used to pass information concerning parts of a document to another computer system. XML sets out to clearly identify boundaries in a document. This system is great for a computer to follow and to process. There is a start and end of each element of this file. I consider this a storage component used for transferring data to hardware/software components.

XML Schema is an XML-based alternative to DTD and describes the structure of a document as stated above. The schema defines the legal building blocks of an SML document. The schema is a W3C standard. An XML Schema defines elements and attributes that appear in a document, defines which elements are child elements, their order and number. It defines what is empty and include text. There is a XML Schema Tutorial for reference and for learning at http://www.w3schools.com/Schema/default.asp.

I would like to add that I had the priviledge and the opportunity of travelling from Cleveland to Pittsburgh to visit the campus of The University of Pittsburgh, Saturday, November 1, 2008 and to attend a 3-hour classroom setting for another course that I am taking this fall 2008 semester. Such beautiful architecture! I was amazed to see the large capacity of the campus and I was able to snap a couple of photos for my personal photo album.

Connie Williams