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					The Microsoft® .NET Framework



              Presented by
              Joseph J. Sarna Jr., MCSD
              JJS Systems, LLC
Agenda

•   Introduction to .NET and Web Services
•   The .NET Framework
•   Common Language Runtime
•   .NET Framework Services
•   Common Language Specification
•   .NET Development Tools
How Did We Get to .NET?
The Evolution of Web Applications

•   First generation of Web applications -non-interactive
    content (HTML static content)

•   Second generation of Web applications - scalable
    back-end and a richer User Interface. (DCOM, ASP,
    CGI, Cold Fusion, dynamic content)

•   Third generation of Web applications (.NET) - using
    Web protocols and XML to allow better integration
    between services on the Web
What is .NET?

•   .NET is Microsoft’s entry into the Web services arena
•   XML based
Why the Move to .NET?

•   DCOM works fine on an Intranet, however:
    –   DCOM does not go through firewalls
    –   Requires too many open TCP/IP ports
    –   Requires Stateful connections
    –   Platform dependent


•   Portals provide services however:
    –   Non-standard interfaces
    –   Hard to integrate with other applications
    –   Not designed to use outside the scope of the portal
What Is A Web Service?
• A programmable application, accessible as a
  component via standard Web protocols
• Defined in terms of the required formats and ordering
  of messages
• You can ask a site for a description of the Web
  Services it offers
• Web Service consumers can be any device - send and
  receive messages using XML
• All built using open Internet protocols
XML Is The Core

•   Simple, open, broadly adopted

•   Continues the Web’s open standards

•   Enables powerful distributed apps

•   A universal data exchange format
XML Format
•   XML is a tagged mark-up representation of data
•   XML consists of a header section, a schema section,
    and a data section
•   The header section defines the XML form itself
•   The schema section defines the format of the data
    contained in the XML document
•   The data section provides the mapped data

•   C:\SicCodes.XML
SOAP
Simple Object Access Protocol
•   Internet becomes integration fabric
•   Broad industry support
    •   IBM, Iona, Ariba, Compaq, Lotus, Commerce-One, HP, SAP,
        others
•   Submitted to W3C:
    •   http://www.w3.org/TR/SOAP/
•   XML-based integration for web services
Benefits of Web Services

•   Leverages exiting infrastructure
•   Allows the choice to buy or build the functionality
•   Use of tested standard modules for repeatability
•   Minimizes development time and cost
•   Allows integration between applications, platforms,
    businesses
Agenda

•   Introduction to .NET and Web Services
•   The .NET Framework
•   Common Language Runtime
•   .NET Framework Services
•   Common Language Specification
•   .NET Development Tools
What Is the .NET Framework?

•   A collection of technologies that
    –   Unite isolated Web applications
    –   Make information available anytime, anywhere
    –   Simplify development and deployment
•   How does .NET achieve the above?
    –   Web Services
    –   ADO.NET Datasets and XML support throughout the platform
    –   Rich tools, runtime services and XCOPY Deployment
.NET Framework, Languages, Tools

 VB      C++     C#   JScript       …

  Common Language Specification




                                        Visual Studio.NET
        Web               User
      Services          Interface

            Data and XML

          Base Class Library

      Common Language Runtime
Agenda

•   Introduction to .NET and Web Services
•   The .NET Framework
•   Common Language Runtime
•   .NET Framework Services
•   Common Language Specification
•   .NET Development Tools
Common Language Runtime

 VB      C++     C#   JScript       …

  Common Language Specification




                                        Visual Studio.NET
        Web               User
      Services          Interface

            Data and XML

          Base Class Library

      Common Language Runtime
    The .NET Common Language Runtime
•    Manages running code
     •   Threading
     •   Memory management
•    Multi-language
     •   Inheritance, Errors, Debugging
•    Fine-grained evidence-based security
     •   Code access security
     •   Role-based security
     •   Integrated with underlying OS
•    “No-touch” deployment
Common Language Runtime

          Base Class Library Support

    Thread Support        COM Marshaler

    Type Checker         Exception Manager

   Security Engine           Debug Engine

  IL to Native      Code          Garbage
   Compilers       Manager        Collector

                 Class Loader
Common Language Runtime Design Goals

•   Dramatically simplify application development
•   Provide a robust and secure execution environment
•   Support multiple programming languages
•   Simplify deployment and management
Agenda

•   Introduction to .NET and Web Services
•   The .NET Framework
•   Common Language Runtime
•   .NET Framework Services
•   Common Language Specification
•   .NET Development Tools
.NET Framework Services

  VB      C++     C#   JScript       …

  Common Language Specification




                                         Visual Studio.NET
         Web               User
       Services          Interface

             Data and XML

           Base Class Library

       Common Language Runtime
.NET Framework Services

•   ASP.NET
    –   Logical evolution of ASP (compiled)
•   Web forms
    –   Manageable code (non spaghetti)
•   Windows® forms
    –   Framework for building rich clients
•   ADO.NET, evolution of ADO
    –   New objects (e.g., DataSets)
•   XML Support Throughout
Some .NET Base Class Libraries
          System.Web                         System.WinForms
Services        UI                  Design         ComponentModel
 Description      HtmlControls
 Discovery        WebControls
 Protocols                                    System.Drawing
Caching         Security            Drawing2D         Printing
Configuration   SessionState        Imaging           Text

          System.Data                          System.Xml
ADO             SQL                 XSLT              Serialization
Design          SQLTypes            XPath

                               System
Collections      IO               Security          Runtime
Configuration    Net              ServiceProcess     InteropServices
Diagnostics      Reflection       Text               Remoting
Globalization    Resources        Threading          Serialization
Agenda

•   Introduction to .NET and Web Services
•   The .NET Framework
•   Common Language Runtime
•   .NET Framework Services
•   Common Language Specification
•   .NET Development Tools
Common Language Specification

  VB      C++     C#   JScript       …

  Common Language Specification




                                         Visual Studio.NET
         Web               User
       Services          Interface

             Data and XML

           Base Class Library

       Common Language Runtime
Common Language Specification

•   What about types?
    –   Common type system (CTS)
•   Other languages and compilers
    –   Common Language Specification (CLS)
.NET Languages

•   The .NET Platform is Language Neutral
    •   All .NET languages perform the same
    •   You can leverage your existing skills
•   Common Language Specification
    •   Consumer: Can use the .NET Framework
    •   Extender: Can extend the .NET Framework
•   Microsoft provides:
    •   VB, C++, C#, JScript
•   Third-parties are building
    •   APL, COBOL, Pascal, Eiffel, Haskell, ML, Oberon, Perl,
        Python, Scheme, Smalltalk
.NET Languages Available (or soon to be)
•   Visual Basic        •   Pascal
•   C#                  •   C
•   Jscript             •   SmallTalk
•   C++                 •   Oberon
•   Perl                •   Scheme
•   Python              •   Mercury
•   COBOL               •   APL
•   Haskell             •   Eiffel
•   ML                  •   Oz
•   Ada                 •   Objective Caml
Agenda

•   Introduction to .NET and Web Services
•   The .NET Framework
•   Common Language Runtime
•   .NET Framework Services
•   Common Language Specification
•   .NET Development Tools
.NET Development Tools

  VB      C++     C#   JScript       …

  Common Language Specification




                                         Visual Studio.NET
         Web               User
       Services          Interface

             Data and XML

           Base Class Library

       Common Language Runtime
Visual Studio® .NET


                                 Planning



            and Collaborate
                                 Analysis
               Manage
                                 Design

                               Development

                                 Testing

                               Deployment
                               .NET
                              Platform
Summary

•   We covered:
    –   Introduction to .NET and Web Services
    –   The .NET Framework
    –   Common Language Runtime
    –   .NET Framework Services
    –   Common Language Specification
    –   .NET Development Tools
Resources for .NET

•   http://www.w3.org/TR/SOAP/ - W3C standards for SOAP
    implementation
•   http://www.uddi.org – UDDI standards for web services
    implementation
•   http://www.microsoft.com/net - Microsoft .NET home
•   http://msdn.microsoft.com/net - Microsoft .NET developers home
•   http://msdn.microsoft.com/xml - Microsoft XML developers home
•   http://msdn.microsoft.com/webservices – Microsoft Web Services
    developers home
•   http://www.gotdotnet.com – Developers .NET resource

				
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posted:8/13/2011
language:English
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