Tài liệu Module 1: The Microsoft .NET Platform and XML pptx

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Tài liệu Module 1: The Microsoft .NET Platform and XML pptx

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Module 1: The Microsoft NET Platform and XML Contents Overview Lesson: XML in the NET Platform Lesson: XML as a W3C Standard 12 Information in this document, including URL and other Internet Web site references, is subject to change without notice Unless otherwise noted, the example companies, organizations, products, domain names, e-mail addresses, logos, people, places, and events depicted herein are fictitious, and no association with any real company, organization, product, domain name, e-mail address, logo, person, places or events is intended or should be inferred Complying with all applicable copyright laws is the responsibility of the user Without limiting the rights under copyright, no part of this document may be reproduced, stored in or introduced into a retrieval system, or transmitted in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise), or for any purpose, without the express written permission of Microsoft Corporation Microsoft may have patents, patent applications, trademarks, copyrights, or other intellectual property rights covering subject matter in this document Except as expressly provided in any written license agreement from Microsoft, the furnishing of this document does not give you any license to these patents, trademarks, copyrights, or other intellectual property  2001 Microsoft Corporation All rights reserved Microsoft, MS-DOS, Windows, Windows NT, ActiveX, BackOffice, bCentral, BizTalk, FrontPage, MSDN, MSN, Netshow, PowerPoint, SharePoint, Visio, Visual Basic, Visual C++, Visual C#, Visual InterDev, Visual Studio, Windows Media, and Xbox are either registered trademarks or trademarks of Microsoft Corporation in the U.S.A and/or other countries The names of actual companies and products mentioned herein may be the trademarks of their respective owners Module 1: The Microsoft NET Platform and XML iii Instructor Notes Presentation: 60 minutes This module provides participants with an introduction to Microsoft® NET, the role of Extensible Markup Language (XML) in NET, and the processes that the World Wide Web Consortium (W3C) uses to establish Recommendations for XML After completing this module, participants will be able to: ! Define the Microsoft NET platform and explain why XML is central to it ! Explain how XML standards are developed and implemented ! Determine which XML processors are installed Materials and Preparation This section provides the materials and preparation tasks that you need to teach this module Required Materials To teach this module, you need the following materials: ã Microsoft PowerPointđ file 2500A_01.ppt Preparation Tasks To prepare for this module: ! Read all of the materials for this module ! Complete the practices ! Visit and become familiar with the Web sites mentioned ! Become familiar with the history of distributed computing and the evolution of the Internet Many participants may not be familiar with this and will have questions ! Read as much as possible about NET and watch the available videos on the Microsoft MSDN® NetShow® Become familiar with the various NET sites on http://www.microsoft.com and http://msdn.microsoft.com Module 1: The Microsoft NET Platform and XML Overview ! XML in the NET Platform ! XML as a W3C Standard *****************************ILLEGAL FOR NON-TRAINER USE****************************** Introduction This module provides an overview of the Microsoft® NET platform After this module you will have a clear understanding of how Extensible Markup Language (XML) and other open computing standards are used by the NET platform This module also describes technologies related to XML Because XML is fundamental to the Microsoft NET vision and strategy, it is important to understand why XML is so central and how it is established To this end, you will learn about the World Wide Web Consortium (W3C) standards and Recommendation development process and how this fits in with Microsoft’s development of XML processors Objectives After completing this module, you will be able to explain: ! Define the Microsoft NET platform and explain why XML is central to it ! Explain how XML standards are developed and implemented ! Determine which XML processors are installed Module 1: The Microsoft NET Platform and XML Lesson: XML in the NET Platform ! What Is the NET Platform? ! Standards Used in XML Web Services ! XML in Applications *****************************ILLEGAL FOR NON-TRAINER USE****************************** Introduction NET is a Microsoft initiative to create the next generation of software that connects the world of information, devices, and people in a unified, personalized way Lesson objectives After completing this lesson, you will be able to: ! Describe the Microsoft NET platform ! Describe how XML fits into the NET platform, including its role in XML Web services and in client applications Module 1: The Microsoft NET Platform and XML What Is the NET Platform? ! NET experiences ! Pervasive smart clients " Windows CE " Windows Embedded 2000 " Windows XP ! XML Web services ! NET servers ! Developer tools " Microsoft Visual Studio NET " The Microsoft NET Framework *****************************ILLEGAL FOR NON-TRAINER USE****************************** Introduction The Microsoft NET platform includes a comprehensive family of products, built on XML and Internet industry standards, that provides for each aspect of developing, managing, using, and experiencing XML Web services XML Web services allow applications to communicate and share data over the Internet, regardless of operating system or programming language There are five areas where Microsoft is building the NET platform today: ! NET experiences ! Tools ! Servers ! XML Web services ! Clients What is a NET experience? NET experiences are XML Web services that allow you to access information across the Internet and from stand-alone applications in an integrated way that saves you time and money Microsoft will deliver NET experiences for individuals and for businesses Some of the products that Microsoft is transitioning into NET experiences are Microsoft MSN®, Microsoft bCentral™, Microsoft NET Passport, and Microsoft Visual Studio® NET What is a smart client? A client is any device that accesses a server A smart device is a client that can access XML Web services Smart clients use Microsoft Windows® CE, Windows Embedded, Window 2000, and Windows XP This software powers PCs, port computers, workstations, smart phones, handheld computers, Tablet PCs, and Microsoft Xbox™ game consoles Module 1: The Microsoft NET Platform and XML What tools are available to create NET solutions? Microsoft Visual Studio NET and the Microsoft NET Framework supply a complete solution for developers to build, deploy, and run XML Web services They maximize the performance, reliability, and security of XML Web services Visual Studio NET is the next generation of Visual Studio, built especially for NET Visual Studio NET helps developers quickly build XML Web services and applications that scale easily, using the language of their choice Visual Studio NET advances the high-productivity programming languages Microsoft Visual Basic®, which includes new object-oriented programming features; Microsoft Visual C++®, which advances Windows development and enables you to build NET applications; and C#, which brings rapid application development (RAD) to the C and C++ developer The NET Framework is a high-productivity, standards-based, multilanguage application execution environment It provides an application execution environment that manages memory and addresses versioning issues It improves the reliability, scalability, and security of your application The NET Framework consists of several parts The Common Language Runtime is a rich set of class libraries for building XML Web services, and ASP.NET What is a NET server? The Microsoft NET Enterprise Servers, including the Windows 2000 server family, make up the Microsoft NET server infrastructure for deploying, managing, and orchestrating XML Web services Designed with mission-critical performance in mind, they provide enterprises with the agility they need to integrate their systems, applications, and partners through XML Web services They also provide the flexibility to adapt to changing business requirements The NET Enterprise Servers are: ! Microsoft Application Center 2000 for deploying and managing highly available and scalable Web applications ! Microsoft BizTalk™ Server 2000 for building XML-based business processes across applications and organizations ! Microsoft Commerce Server 2000 for quickly building scalable e-commerce solutions ! Microsoft Content Management Server 2001 for managing content for dynamic e-business Web sites ! Microsoft Exchange Server 2000 for enabling messaging and collaboration anytime and anywhere ! Microsoft Host Integration Server 2000 for bridging to data and applications on earlier systems ! Microsoft Internet Security and Acceleration Server 2000 for secure, fast Internet connectivity ! Microsoft Mobile Information 2001 Server for enabling application support by mobile devices like cell phones ! Microsoft SharePoint™ Portal Server 2001 for finding, sharing, and publishing business information ! Microsoft SQL Server™ 2000 for storing, retrieving, and analyzing structured XML data Module 1: The Microsoft NET Platform and XML Standards Used in XML Web Services Create Report Billing Web Services Report Payment Create Invoice Purchasing Web Services Create New Order Audit Permissions Universal Universaldata dataformat format Publish, Publish,find, find,and anduse useservices services Service Serviceinteractions interactions Ubiquitous Ubiquitouscommunication communication Interface Interfaceexposition exposition Interoperable Interoperablecode code XML XML UDDI UDDI SOAP SOAP Internet Internet WSDL WSDL C# C#and andCLI CLI Authenticate Suspend Account Look Up Orders Look Up Inventory Authentication Web Services *****************************ILLEGAL FOR NON-TRAINER USE****************************** Introduction Microsoft is engaged in the standards process for key NET-enabling technologies Standardization of technologies that allow software to interoperate and exchange data makes solutions involving multiple platforms possible and benefits end users The key NET-related technology standards are XML, Simple Object Access Protocol (SOAP), Universal Description, Discovery, and Integration (UDDI), Web Services Description Language (WSDL), the Common Language Infrastructure (CLI), and C# What is an XML Web service? Web sites are primarily designed to exchange information with users Sometimes this involves applications outside the Web site, sometimes it does not In contrast, XML Web services are designed to allow multiple applications to interact based on what users want One set of XML Web services, known as NET My Services, is a set of services oriented around people .NET My Services is based upon the NET Passport user authentication system With NET My Services, users receive relevant information, when they need it, delivered to the devices they are using, and based on preferences they have established The need for standards We are in an era of standards-based computing Standards provide the foundation for the architectural goal of interoperability The NET platform is built on a foundation of industry standards Applications built on the NET platform take advantage of the gains in interoperability that standards provide XML: a universal data format XML is the universal format for structured data XML is a set of rules for designing text formats for data in a way that produces files that are easy to generate and read, unambiguous, and platform-independent Microsoft has been very involved with XML from its conception XML is currently managed by the World Wide Web Consortium (W3C), which is the same formal standards body that owns the Hypertext Markup Language (HTML) specification Module 1: The Microsoft NET Platform and XML SOAP: an application linking protocol SOAP is built on XML It makes it possible for applications to call each other in a standard, loosely-coupled way If you think of the interactions between XML Web services as a phone call, XML describes the things that applications say to each other in their conversations SOAP describes how they call each other on the phone How you greet the service at the other end? How you ask for something? SOAP, like XML, is part of the W3C standards process It was jointly submitted by Microsoft and a number of other companies including IBM Both XML and SOAP have been publicly endorsed by major software industry vendors UDDI: a directory for XML Web services If XML is the conversation, and SOAP describes the rules for how you call someone, then UDDI is the phone book UDDI provides a directory of XML Web services It allows you to find businesses offering XML Web services UDDI is currently a community process with more than 200 participating companies The UDDI community intends to submit UDDI to a formal standards body at some point in the future Internet protocols XML Web services rely on a host of established open Internet standards, such as HTTP, Simple Mail Transfer Protocol (SMTP), and many others WSDL: a language for exposing XML Web service interfaces WSDL provides a standard way to describe what functions are available from a specific XML Web service and what arguments must be passed to call them WSDL, like SOAP, has been submitted to the W3C for standardization C# and the CLI Microsoft has created a new programming language designed for an XML Web services world, called C# C# has been submitted for standardization to the European Computer Manufacturers Association (ECMA), a vendor-neutral international standards organization committed to driving industry-wide adoption of information and communications technologies This standardization will make it possible for any organization that wishes to implement C# programming tools on any platform to so Microsoft has also submitted a subset of the NET Framework, called the CLI, to ECMA This will make it possible for other vendors to implement the CLI on a variety of platforms Software written by using the basic architectural model presented by the NET Framework can be created by using a variety of tools on a variety of platforms Module 1: The Microsoft NET Platform and XML Compare the EDI code with the following code RAMONA PUBLISHING P.O BOX 679342 TX, 77234 HANSEL PUBLISHING 101 APPLE PIE ST. NY, 00103 FIVELAKES PUBLISHING 79 RIVER DRIVE TX, 74564 J DOE 2104355445 3, CA, 12.75,,VC,, 6900 12, EA, 2.99,,VC,, P450 4, EA, 5.99,,VC,, 1640 1, DZ, 2.45,,VC,, 1507 100.54 CONSOLIDATED TRUCK Compare how the data formatted with EDI compares with the XML elements Module 1: The Microsoft NET Platform and XML XML in Applications ! XML in initialization files ! XML as import and export format ! XML in the presentation layer ! XML as a pervasive system file format XML Example *****************************ILLEGAL FOR NON-TRAINER USE****************************** Introduction In addition to being used as a data interchange format in XML Web services, XML can also help you develop desktop applications XML in initialization files XML has many qualities that make it an ideal format for encoding initialization files It is simple, text only, and portable You can standardize a markup format in a development organization to make interoperability easier For example, Microsoft Office XP uses XML as a format for storing initialization data XML as import and export format As a universal format for data, XML is an ideal format for importing and exporting data between applications and across platforms XML in the presentation layer XML can be presented with sophisticated formatting by using HTML or XSL style sheets An XSL style sheet can be used by any application that can link to an XML processor XML as a pervasive system file format XML is already an integral part of many Microsoft products You can verify this statement if you search for *.xml files on a computer running Windows XP XML files are being used for many purposes at the operating system level In the operating system environment, XML is used for maintaining core configuration information 10 Example Module 1: The Microsoft NET Platform and XML Windows XP uses a file named ipcfg.xml Here is a part of that file Can you tell the purpose of the data that is contained in ipcfg.xml? 1 0 SetConnectionType NewConnectionType in ConnectionType GetConnectionTypeInfo NewConnectionType out ConnectionType … Practice The use of XML is pervasive in Windows XP and in Office XP In this practice, you will open the Windows XP search utility and find files with the xml extension Then, you will open the files to investigate how they are used ! Find XML system and initialization files Click Start and then click Search Click All files and folders In the All or part of the file name box type *.XML Click More advanced options, and then select the Search system folders, Search hidden files and folders, and Search subfolders check boxes Click Search Open a few XML files that are used by the operating system or by Office XP or other applications Try to determine how the file is being used Important Be sure not to change the contents of any of these files, because you might cause your computer to operate improperly When you close the files after looking at them, not save any changes Module 1: The Microsoft NET Platform and XML 11 Media: What NET Delivers ! Information Anywhere on Any Device *****************************ILLEGAL FOR NON-TRAINER USE****************************** Introduction This video shows you how data will be made available anywhere on any device 12 Module 1: The Microsoft NET Platform and XML Lesson: XML as a W3C Standard ! Comparing XML and HTML ! W3C and the Process of Creating Standards ! W3C XML Technologies ! Applications and XML Processors *****************************ILLEGAL FOR NON-TRAINER USE****************************** Introduction The W3C conceived of XML as a universal format for data Today, XML enables developers to easily describe and deliver rich, structured data from any application in a standard, consistent way In this lesson you will see the process that the W3C uses to expand the technological capabilities of XML technologies You will also get a first look at XML in comparison to HTML XML is dependent upon XML processors You will also see what XML processors are installed on your computer Lesson objectives After completing this lesson, you will be able to: ! Describe the process by which the W3C creates XML standards ! Compare XML to HTML ! Explain the profusion of W3C XML-based standards ! Identify which XML processor is installed on your computer Module 1: The Microsoft NET Platform and XML 13 Comparing XML and HTML Similarities ! Both consist of text only ! Both mark content with elements ! Both use attributes and nested elements Both are derived from Standard Generalized Markup Language (SGML) Differences ! In XML, you create your own element names ! ! In XML, syntax is strictly enforced ! HTML presents data; XML describes data *****************************ILLEGAL FOR NON-TRAINER USE****************************** Introduction One way to understand XML is to compare it to HTML How is XML like HTML? XML and HTML are alike in many ways How is XML unlike HTML? ! Both XML and HTML consist of text only ! Both XML and HTML mark content with tags In XML, tags are more often called elements ! Both XML and HTML use attributes to mark data ! Both XML and HTML allow you to nest one or more elements within one another ! Both XML and HTML are derived from Standard Generalized Markup Language (SGML) XML differs from HTML in many ways With XML, unlike HTML, the following is true: ! XML processors strictly enforce XML syntax For example, if elements overlap in HTML, the browser can ignore the error and continue processing the HTML But if an XML document contains overlapping elements, the processor stops processing and generates an error message ! In general, in XML you can create your own element names ! HTML is about presentation XML is about describing data HTML is concerned with marking text so that it presents well in a browser HTML was originally conceived to allow some markup of a document’s data structure in terms of a hierarchy of headings However, much of the structural capabilities of HTML are overshadowed by XML With XML, because you are free to invent your own names for elements, you can create an exact system that marks data in terms of structure and semantics 14 Example Module 1: The Microsoft NET Platform and XML XML documents must follow rules for identifying document parts and creating nested element structures For example, the following HTML code suggests a combination of bold and italic by overlapping the structures: This is bold text This is bold italic text. This is italic text. In some HTML browsers, this text appears as follows: This is bold text This is bold italic text This is italic text In an XML processor, however, all processing halts as soon as is encountered, because the XML processor is looking for and does not accept To achieve the same formatting in XML, use the following syntax: This is bold text. This is bold italic text. This is italic text. Module 1: The Microsoft NET Platform and XML 15 W3C and the Process of Creating Standards Notes Research Research only only Submissions Activity Proposals Technical Reports Working Draft Use Use for for learning learning and and testing testing Last Call Working Draft Candidate Recommendation Proposed Recommendation W3C Recommendation Ready Ready for for production production systems systems *****************************ILLEGAL FOR NON-TRAINER USE****************************** Introduction Although the development of standards by W3C follows a well-defined set of rules, it can move quickly to accommodate the needs of the XML development community The XML developer must understand this process and monitor W3C as it introduces and updates technology specifications On the W3C Web site (http://www.w3.org), there is extensive information on how to become a member of W3C, how it works, and the specific processes involved in producing W3C Recommendations Important For detailed documentation on the W3C process, go to the World Wide Web Consortium Process Document at http://www.w3.org/Consortium/ Process-20010719/ The W3C changes its processes and the document on a periodic basis Membership Membership is open but governed by a clear set of rules, rights, and obligations W3C operates through a discussion and consensus model built around a formal process Members may submit submissions and notes, either independently or through W3C group process 16 Module 1: The Microsoft NET Platform and XML Processes and documents W3C members submit notes, submissions, and technical reports These documents consist of critiques of existing technologies and suggestions for new technologies W3C publishes these documents and uses the discussion that they generate to guide the revision of existing technologies and to develop entirely new technologies A technology specification goes through several stages You can check the progress of a technology as its status changes Working Draft Last Call Working Draft Candidate Recommendation Proposed Recommendation W3C Recommendation In theory, you should only use a technology that has attained the status of Working Draft through Proposed Recommendation to learn from and to test, but not for production systems Only when a technology specification reaches W3C Recommendation should you put it to use in productions systems In actual practice, W3C technology specifications are frequently pressed into service well before they reach Recommendation status While a technology specification evolves from Working Draft to W3C Recommendation, there are many opportunities for revisions, appeals, and extensions of ideas After a technology specification reaches W3C Recommendation status, the process may repeat itself again W3C designed the process around the principle that technology evolves while it is put to use in real settings Example The evolution of XML is a mature example of the results of this process The formal process for XML began in 1995 The newly announced Web Services Description Language (WDSL) is an example of the process in action (see http://www.w3.org/TR/wsdl.html) ... 12 Module 1: The Microsoft NET Platform and XML Lesson: XML as a W3C Standard ! Comparing XML and HTML ! W3C and the Process of Creating Standards ! W3C XML Technologies ! Applications and XML. .. familiar with the various NET sites on http://www .microsoft. com and http://msdn .microsoft. com Module 1: The Microsoft NET Platform and XML Overview ! XML in the NET Platform ! XML as a W3C Standard... developed and implemented ! Determine which XML processors are installed 2 Module 1: The Microsoft NET Platform and XML Lesson: XML in the NET Platform ! What Is the NET Platform? ! Standards

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