The Microsoft

1
The Microsoft .NET Framework

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

2
Agenda

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

3
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

4
What is .NET?

• .NET is Microsofts entry into the Web services
  arena
• XML based

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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

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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

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XML Is The Core

• Simple, open, broadly adopted
• Continues the Webs open standards
• Enables powerful distributed apps
• A universal data exchange format

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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

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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

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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

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Agenda

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

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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

13
.NET Framework, Languages, Tools
Visual Studio.NET
VB
C
C
JScript

Common Language Specification
Web Services
User Interface
Data and XML
Base Class Library
Common Language Runtime
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Agenda

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

15
Common Language Runtime
Visual Studio.NET
VB
C
C
JScript

Common Language Specification
Web Services
User Interface
Data and XML
Base Class Library
Common Language Runtime
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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

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Common Language Runtime
Base Class Library Support
Class Loader
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Common Language Runtime Design Goals

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

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Agenda

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

20
.NET Framework Services
Visual Studio.NET
VB
C
C
JScript

Common Language Specification
Web Services
User Interface
Data and XML
Base Class Library
Common Language Runtime
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.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

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Some .NET Base Class Libraries
System.Web
System.WinForms
Design
ComponentModel
Services
UI
Description
HtmlControls
Discovery
WebControls
Protocols
System.Drawing
Caching
Security
Drawing2D
Printing
Imaging
Text
Configuration
SessionState
System.Data
System.Xml
ADO
SQL
XSLT
Serialization
Design
SQLTypes
XPath
System
Collections
IO
Security
Runtime
InteropServices
Configuration
Net
ServiceProcess
Remoting
Diagnostics
Reflection
Text
Serialization
Globalization
Resources
Threading
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Agenda

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

24
Common Language Specification
Visual Studio.NET
VB
C
C
JScript

Common Language Specification
Web Services
User Interface
Data and XML
Base Class Library
Common Language Runtime
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Common Language Specification

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

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.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

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.NET Languages Available (or soon to be)

• Visual Basic
• C
• Jscript
• C
• Perl
• Python
• COBOL
• Haskell
• ML
• Ada

• Pascal
• C
• SmallTalk
• Oberon
• Scheme
• Mercury
• APL
• Eiffel
• Oz
• Objective Caml

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Agenda

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

29
.NET Development Tools
Visual Studio.NET
VB
C
C
JScript

Common Language Specification
Web Services
User Interface
Data and XML
Base Class Library
Common Language Runtime
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Visual Studio .NET
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Summary

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

32
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