1. Out Look 1.Introduction 2. Guiding Principles of Windows DNA 3. Development Technologies 4. DNA - Architecture for Distributed Applications 5. Client Environments and Presentation Tier 6.Application Services 7.Universal Data Access 8. Features and Advantages of Windows DNA 9. Conclusion 10. Bibliography 11.References

2. 1.INTRODUCTION

3. Understanding The Microsoft Windows DNA Architecture:- Understanding The Microsoft Windows DNA Architecture:-  Windows DNA specifies how to: develop robust, scalable, distributed applications using the Windows platform.  Windows DNA is essentially a 'blueprint' that enables corporate developers and independent software vendors (ISVs) to design and build distributed business applications using technologies.

4. 2. Guiding Principles of Windows DNA The following principles guided microsoft in developing the windows DNA architecture.   Web computing without compromise   Interoperability   True integration   Faster time to market   Reduced complexity

5. Two-Tier Applications (Client/Server)

6. N-Tire Applications

7. Fig2:Technologies added to Windows DNA 3. Development Technologies 3. Development Technologies

8. Development Technologies Development Technologies Windows DNA Architecture is a dynamic set of technologies that you can use to build Web applications. Windows DNA Architecture is a dynamic set of technologies that you can use to build Web applications.  Component Object Model (COM)  Dynamic Hypertext Markup Language (DHTML).  Windows Script Components  XML: Extensible Markup Language (XML).  Active Directory Service Interfaces and IIS

9. 4. DNA - Architecture for Distributed Applications Figure 4:-Different pieces within the DNA architecture

10. Different pieces of DNA Architecture  Server machine  Central Database  Microsoft's web server software product  Internet Explorer 4.0  Dynamic HTML  Cooperating Components

11. 5.Client Environments and Presentation Tier  The application developer today must develop a user interface that is distributable, available on Windows and non-Windows platforms, and supports a wide range of client environments, from handheld wireless devices to high-end workstations.  Windows DNA permits the developer to choose the appropriate Windows components and Internet technologies to support the richest possible interface and range of client environments, from handheld wireless devices to high-end workstations

12. Fig5. Windows DNA presentation approaches

13. 6.Application Services Figure 6. Application services

14. 7.Universal Data Access Figure 5. Data access

15.  DNA helps to design and build multi-tier client/server applications.  DNA application are Platform independent.  DNA applications provide full transactional processing support.  DNA can be used to create applications that are fault tolerant.  DNA is ideal for distributed applications. 8.Features of Windows DNA

16. 9.Conclusion:  Providing a comprehensive and integrated platform for distributed applications.  Faster and easier to build distributed applications by providing a pervasive component model, extensive prebuilt application services.  Provides wide choice of programming language and tools support.

17. 10.Bibliography 1. http:// www.microsoft.com 2.http://www.msdn.com www.msdn.com 3.http://www.Techno First.com 4. Professional VB.NET 2003 VB.NET 5. www.bengalcore.com

18. 11.References  Professional Active Server Pages 2.0:Chris Blexrud  Internet-related development, and produces:Dino Esposito  A component-based application:John Schenken

19. THANK YOU

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