Understanding Microsoft.NET

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Understanding Microsoft.NET

• Steven B. Raines

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Summary

• What is .NET
• Why Move to .NET
• How Does .NET work

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What Is .NET?

• Microsoft says
•  
• .NET is a comprehensive family of products, built
  on industry and Internet standards, that provide
  for each aspect of developing, managing, using
  and experiencing XML services.

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But What Does It Mean?
Microsoft .NET.  2003. Defining the basic
elements of .NET Microsoft. World Wide Web
Publication, http//microsoft.com/net/basics/whati
s.asp
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Suite of Technologies

• Developer tools
• ASP.NET
• Visual Studio .NET
• Visual Basic .NET
• Visual C .NET
• Visual C .NET
• Jscript .NET
• Visual J .NET
• Visual FoxPro 7.0 (.NET)
• Can consume .NET XML web services generated by
  ASP.NET.
• Can publish XML web services usable by .NET

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Suite of Technologies (Cont.)

• Smart Clients
• Windows 2000 and Windows XP PCs with .NET
  Framework.
• XBOX
• Machines running Ximian Mono (open source
  implementation of .NET)
• Smart phones
• Handheld computers / PDAs
• Smart Appliances

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Suite of Technologies (Cont.)

• Web Service Technology
• W3C-based Technology
• Simple Object Access Protocol (SOAP)
• Universal Description, Discovery, and Integration
  (UDDI) (an online registry of web services)

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Suite of Technologies (Cont.)

• .NET Servers
• .NET Standard Server (replacing Windows 2000)
• .NET Web Server
• .NET Enterprise Server
• .NET Datacenter Server

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Rich User Experiences

• User specific (.NET Identity)
• Location independent Understands and
  accommodate bandwidth considerations including
  online vs. offline and appropriate UI. Know how
  to find and interact with other devices.
• UI appropriate to device

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Rich User Experiences (Cont.)

• Microsofts Example Imagine you wanted to turn
  up the heat in your house while you were away
  from home. You could use a .NET experience that
  controls your household utilities through a smart
  device. The device you use could be your desktop
  computer while you were at the office, your smart
  phone while you were driving to the grocery
  store, or kiosk while you were shopping for
  dinner ingredients.

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Why Move to .NET

• On-going support from Microsoft
• Designed to solve internet / web development
  problems. System features that programmers used
  to have to create are now provided. Features
  previously available only from 3rd-party
  components are now part of the tool set
• Designed to ease integration with many different
  types of systems via XML Web Service
  technologies.
• Allows organizations to leverage many existing
  developer skill sets
• Easier to use development environment

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How Does .NET Work?

• Common Language Runtime (CLR)
• Class Libraries
• Loosely Coupled Web Services

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Common Language Runtime (CLR)

• Assembly-based deployment, with side-by-side
  versioning of reusable components. No more DLL
  Hell.
• Interoperability across languages. Core set of
  language features across languages.
• Support for existing infrastructure (COM/DCOM)
• Server generated Web Controls make experience
  more like windows.
• Supports compiled execution.
• Web Farm Session State.
• Update running applications (unlike COM/DCOM
  restarts)

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Class Libraries

• .NET Framework provides functionality for tasks
  such as user interface design, threading,
  security management, network communications, and
  so on.
• ADO.NET for data manipulation
• ASP.NET for building Web applications and XML Web
  services
• Windows Forms for building Windows-based smart
  client applications.
• Mobile Toolkit for delivering applications to web
  enabled handheld devices.

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Loosely Coupled Web Services

• Built on the framework of the web, but uses XML
  in mutually agreed upon frameworks like SOAP.
• Not transport specific.
• Usually HTTP
• SMTP
• Instant Messaging Protocols (Jabber)
• Raw TCP
• XML based message instead of MIME (as in HTTP).

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Summary

• What is .NET
• Why Move to .NET
• How Does .NET work

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Internet Resources
Microsoft .NEThttp//www.microsoft.com/net Micro
soft .NET for IT Professionalshttp//www.microsof
t.com/technet/treeview/default.asp?url/technet/it
solutions/net/evaluate/itpronet.asp Security in
a Web Services World A Proposed Architecture and
Roadmaphttp//www.msdn.microsoft.com/library/?url
/library/en-us/dnwssecur/html/securitywhitepaper.
asp?frametrue .NET Security Overviewhttp//www.
microsoft.com/net/downloads/security_net.doc
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Internet Resources
.NetWirehttp//www.dotnetwire.com/ GotDotNet?htt
p//www.gotdotnet.com/ Active Server Pages
.NEThttp//www.asp.net/ Ximian Mono (Open Source
.NET)
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About the Presenter
Steven B. Raines raines_at_algonquinstudios.com Co-Fo
under   Steve has over seven years experience
implementing business solutions through Internet,
intranet and Extranet systems. He has an
extensive knowledge of Internet technologies,
focused on design integration, scalable systems
development and legacy systems integration.   Stev
e has been involved in the delivery of and
integration with a number of web service based
systems for the City of Buffalo and the ABC
Companies. He is also the principal developer of
Quantum CMS, a content management system that
integrates and XML service-based architecture,
currently undergoing a move to .NET.