Dynamic websites

Dynamic Web pages can serve as a Web interface for distributed programs:  A program is not started conventionally, locally on the computer, but is simply a set of dynamic Web pages that can be viewed and operated through a web browser.

Advantage of this is that the programs are no longer distributed to individual computers, and (locally) should be administered.  Dynamic web applications are either on the web server or directly in the browser.

Running Web Applications on the Web: The content is in scripting languages (like PHP or Perl) or compiled applications (such as JSP, servlets or ASP.NET) web applications are written, produced and delivered to the browser.  Dynamic web sites for the Client: The browser creates or modifies content using JavaScript.

Joint implementation: A mixed performance is AJAX, the browser sends a request using JavaScript, which is processed by the web server and dynamically updated as part of the HTML structure.

Disadvantages are the limited expression of Web pages, so that programs can be operated in the form of web pages which are generally not as easy as conventional programs.  A trend that is trying to get back into compliance is Rich Internet Applications.

It is also observed that more and more services, which were originally separate from the Web and used with separate programs, are becoming more common on the technical possibilities of the WWW and can be used through a browser:  Thus webmail is often used as an e-mail client or WebFTP as an FTP client, Usenet and web forums replace the IRC chats.