Transcript .NET Framework Overview and Base Classes

Creating Business Value
with .NET
Drew Robbins
InDepth Technology
Overview
• Service-Oriented Architecture
• Overview of .NET Technology
• XML Web Services
Software Architecture
• High-Level Structures of Software
• Components of System
• Interactions between Components
Architecture Patterns
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Mainframe
File Sharing
Client/Server
Three Tier and N-Tier
REpresentational State Transfer (REST)
Architecture Soup
DCOM
COBOL
Service-Oriented Architecture
• Wrap Application Components in WellDefined Interfaces
• Common Messaging Language
• Flexibility on how to Implement Interface
• Flexibility on how to Consume Interface
Service-Oriented Architecture
Service
Requestor
Service
Requestor
Common Messaging Language
Service
Provider
Service
Locator
Service
Broker
Service
Provider
.NET Defined
• Group of Microsoft software technologies.
• Connects information, systems and
devices and the people that use them.
• Build on Industry Standards for secure
communication.
Components of .NET
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Smart Clients
XML Web Services
Servers
Developer Tools
Smart Clients
Web
Services
Servers
.NET Framework
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Improved Developer Productivity
Better Deployment Mechanisms
Interoperability and Management
Increased Security
Rich Device Support
.NET Framework Components
Managed Windows Applications
Managed Web Applications
Custom Class Libraries
Framework Class Library
Common Language Runtime
ASP.NET (Runtime)
App.exe
Library.dll
IIS
Operating System
Common Language Runtime
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Manages Memory
Code/Thread Execution
Code Safety Verification
Just-in-Time Compilation
Type Verification
Garbage Collection
Common Type System
• Specification for common way to define
types.
– Field, Method, Property, Event
• Type Visibility
– Public, Private, Family, Assembly, Family and
Assembly, Family or Assembly
• This allows all languages to target the
CLR by compiling to a common
Intermediate Language base on the
CTS.
Application Types
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Console Applications
Scripted/Hosted Applications
Windows GUI Applications
ASP.NET Applications
Windows Services
XML Web Services
XML Web Services
• Loose Coupled, Service-Oriented
• XML as Common Interface Language
• Web Services Definition Language
(WSDL)
• Universal Description, Discovery,
Integration (UDDI)
• Simple Object Access Protocol (SOAP)
XML Web Services
Rich
Client
Application
Other
Service
Component
XML/SOAP
WSDL
Purchase
Order
System
Service
Locator
Service
Broker
UDDI
WS-Referral
Enterprise
Resource
Mgmt
Example Web Service I
• Research Pane in Office 11
– Implement WSDL defined by MS
– Factiva, WorldLingo Services
– Build your own
• Example of Google Research
Website
Integrated
Search
Office 11
Research
XML/SOAP
Research WSDL
Google
Web
Service
Service
Locator
Service
Broker
UDDI
WS-Referral
Google
Research
Service
Example Web Service II
• Amazon.com Exposes Web Service
– Use SOAP or XML over HTTP (REST)
– Display Product Lists
– Enable Searches
– Integrate with Shopping Cart
– Amazon Associates Program
Example Web Service III
• Using InfoPath to submit information to a
web service
– BERT – Bug and Enhancement Request
Tracking
– Submission service for submitting from the
field
– Service created before considering InfoPath
Benefits of .NET Web Services
• Visual Studio.NET – Developer
Productivity
• Built-in Caching
• Automatic WSDL Generation
• .NET Framework
• Cross-language Compatibility
Summary
• .NET is a group of software technologies.
• .NET Framework is a programming model.
• XML Web Services are a key architectural
component of .NET.
• Service Oriented Architectures enable you
to leverage existing applications to build
flexible solutions that have business value.
Questions
Drew Robbins
InDepth Technology
[email protected]