What Are Web Page Program Development Techniques Such as HTML and XHTML, XML and WML, Scripting Languages, DHTML, Ruby on Rails, Web 2.0 Development, and Web Page Authoring Software? Web developers use a variety of techniques to create Web pages. HTML (Hypertext Markup Language) is a special formatting language that programmers use to format documents for display on the Web. XHTML (extensible HTML) is a markup language that includes features of HTML and XML. XML and WML are popular formats used by Web developers. A scripting language is an interpreted language that programmers use to add dynamic content and interactive elements to Web pages. Popular scripting languages include JavaScript, Perl, PHP, Rexx, Tcl, and VBScript. Dynamic HTML (DHTML) is a type of HTML that allows developers to include more graphical interest and interactivity in a Web page. Ruby on Rails (RoR or Rails) is an open source framework that provides technologies for developing object-oriented, databasedriven Web sites. Web 2.0 Web sites often use RSS 2.0 and Ajax. Developers use Web page authoring software to create sophisticated Web pages. Four popular Web page authoring programs are Dreamweaver, Expression Web, Flash, and SharePoint Designer.