
This tutorial examines the validation of XML documents using either Document Type Definitions (DTDs) or XML Schema. It is aimed at developers who have a need to control the types and content of the data in their XML documents, and assumes that you are familiar with the basic concepts of XML. (You can get a basic grounding in XML itself through the Introduction to XML tutorial.) It also assumes a basic...

XML (Extensible Markup Language) was developed by the XML working group (known as the SGML Editorial Review Board) formed under the auspices of the World Wide Web Consortium (W3C) in 1996. XML is a highly functional subset of SGML. The purpose of XML is to specify an SGML subset that works very well for delivering SGML information over the Web. When the mainstream Web browsers support XML, it is believed...
In this tutorial you will learn what XML is about. You’ll understand the basic XML syntax. An you will know what’s needed to make XML usable. You won’t be an XML expert after following this kickstart tutorial. But you’ll understand the basics of XML. And you’ll be able to understand XML Documents and most of XML DTD’s General information 2 This Tutorial 3 Index...

You should read this document if you are implementing an iPhone OS application. Most productivity applications that contain a lot of user data or records benefit from using view controllers to organize and present content on small hand-held devices. Even a single view graphics application benefits from using view controllers for autorotation. If you are new to development for iPhone OS, read these...