Divya's Blog

Posts Tagged ‘web based applications


  • The Windows Distributed interNet Applications Architecture (DNA) is a Microsoft blueprint for robust, scalable, distributed business software.
  • It gives all combined advantages of Centralized mainframe, application servers, internet technologies and Personal computers.

Evolution of Windows DNA

Windows DNA is an evolution which started from mainframes (where all logic was centralized), Fox pro ages ( where we talked in terms of two tier systems), VB6 / SQL SERVER (three tier where we talked in terms of having one more tier which was mainly COM where business logic resided), COM+ ( looking in terms of transactions and fulfilling ACID rules) and finally the DNA.

Principal technologies comprising DNA

  1.  ActiveX,
  2. Dynamic HTML (DHTML) and
  3. COM.

To support web based application Microsoft has tried to add internet features into the OS using COM.

cons:

But developing a web based application using COM based Windows DNA is quite complex. The complexity is due to the simple fact that Windows DNA requires the use of numerous technologies and languages. These technologies are completely unrelated from a syntatic point of view.

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