1 / 23

Microsoft .NET Platform

Microsoft .NET Platform. An overview (composed by Prof. H-M. Haav) IU Fall 2003. Introduction. Defined by Microsoft as " the platform for XML web services " Goals set for the new platform are: Use of widely accepted industry standards such as XML, HTTP, SOAP

ealey
Download Presentation

Microsoft .NET Platform

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Microsoft .NET Platform An overview (composed by Prof. H-M. Haav) IU Fall 2003

  2. Introduction • Defined by Microsoft as "the platform for XML web services" • Goals set for the new platform are: • Use of widely accepted industry standards such as XML, HTTP, SOAP • Code interoperability instead of code portability • Shift towards distributed applications • Embracing Internet as the widest possible working surrounding • Providing simple and compelling experience to end users

  3. Basic Elementsof .NET • .NET clients • .NET servers • XML web services • Developer tools

  4. .NET Clients • Thick-client applications with advanced user interfaces • On-demand installation for different users, using specified servers • Data management and business logic are placed on the client side • Connection to the server only during data exchange • Devices that act as .NET clients are: • desktop and notebook PCs, • palm-top Personal Digital Assistants, • mobile phones, • game consoles etc.

  5. .NET Client Examples • Pocket PC – PDA devices operating on Windows CE .NET • MS Smartphone Platform – extending the functionality of an ordinary mobile phone • Tablet PC –extends pen and speech capabilities to a mobile, versatile PC device • Desktop or notebook PC running Windows XP or Windows 2000

  6. Pocket PC 2002 • New communication features, integrating e-mail, voice and www • Support for Windows-based popular software, such as: • Pocket Outlook • Pocket Word • Pocket Excel • Windows Media Player • File Explorer

  7. Smartphone 2002 • Running on Windows XP • Completely personalized • Full Internet support (e-mail, www, XML web services) • Integrated multimedia • Unified Inbox for all types of communication • Easy to synchronize with a PCusing Microsoft ActiveSync software

  8. Tablet PC • Combines the mobility of a notebook PCwith pen and speech tools • Runs Windows XP Tablet Editionoperating system • New features such as: • Creating handwritten documents • Voice control and dictation of documents • converting from laptop to tablet mode • Fully compatible with external peripherals such as monitors, keyboards, mouses etc. • First models marketed in December 2002

  9. Desktop / notebook PC • Any desktop or notebook PC can run smart client software,if operating on Windows XP or Windows 2000 • Examples of client services: • MS Passport (www.passport.com) • MSN (www.msn.com) • bCentral (www.bcentral.com) • The use of these services is fully personalized on the client machine

  10. .NET My Services • User-oriented set of XML web services • User authentication based on MS Passport • Basic set consists of: • .NET Profile • .NET Contacts • .NET Locations • .NET Alerts • .NET Presence • .NET Inbox • .NET Calendar • .NET Documents • .NET ApplicationSettings • .NET FavoriteWebSites • .NET Wallet • .NET Devices • .NET services • .NET Lists • .NET Categories

  11. .NET Servers • Turn-key solutions for business infrastructure • Based on Windows 2000 • .NET Enterprise servers are specialized for various applications: • Message exchange • Support for mobile devices • Database management • Web content management • E-commerce • Data security • Sharing and publishing business information

  12. .NET platform standards • XML • SOAP • WSDL • UDDI

  13. XML (Extensible Markup Language) • Universal format for structured documents and data • A restriction of SGML (Standard Generalized Markup Language) • Enables easy creation and processing of documents • XML documents are easily readable, their structure is formalized and logical

  14. SOAP (Simple Object Access Protocol) • Protocol intended for exchanging structured information in a decentralized, distributed environment, using XML • SOAP defines an extensible messaging framework providing a message construct that can be exchanged over a variety of underlying protocols • SOAP message consists of two parts: • header block • body block

  15. Example of a SOAP message in HTTP Request • Message sent from a client to a server <SOAP-ENV:Envelope  xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"  SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">   <SOAP-ENV:Body>       <m:GetLastTradePrice xmlns:m="Some-URI">           <symbol>DIS</symbol>       </m:GetLastTradePrice>   </SOAP-ENV:Body> </SOAP-ENV:Envelope>

  16. Example of a SOAP messagein HTTP Response • Response sent from a server to a client <SOAP-ENV:Envelope  xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"  SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">   <SOAP-ENV:Body>       <m:GetLastTradePrice xmlns:m="Some-URI">           <symbol>DIS</symbol>       </m:GetLastTradePrice>   </SOAP-ENV:Body> </SOAP-ENV:Envelope>

  17. WSDL (Web Services Description Language) • XML format for defining web services as a set of end-points which exchange messages • Abstract definition of end-points and messages is separated from the network configuration or the data formats used • What IDL is for COM, WSDL is for XML web services

  18. Structure of a WSDL description

  19. UDDI(Universal Description, Discovery and Integration) • Set of specifications which provide publishing and discovery of web services on the Internet • Based on existing open standards • Platform and implementation independent • UDDI Business Registry contains information on web services and provides means to locate and use them • UDDI registries are free of charge and publicly accesible

  20. Architectures compared

  21. Language support • J2EE: • Java is the language of choice • interoperability using CORBA, JNI or JCA • Microsoft .NET: • All major languages except Java are or will be supportedAll source code compiled to MSIL “common language” code

  22. Migration from previous platform • J2EE: • Only web services and JCA require new code • Minor migration problems • .NET – two methods to migrate: • Rewrite the old code as CLR code • Keep the old code unmanaged,and take special measures for interoperability

  23. Conclusion • Microsoft .NET introduces a new way of thinking, both for seasoned Windows developers and end-users • Software development is intended to be easier and more efficient at the same time • Excellent development tools and user interface in Visual Studio .NET • Microsoft has opted for language interoperability on Windows platform, while Java offers code portability between platforms

More Related