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CHAPTER 5

CHAPTER 5. Network Applications. Chapter Outline. 5.1 Network Applications 5.2 Web 2.0 5.3 E-Learning and Distance Learning 5.4 Telecommuting. Learning Objectives. Describe the four major network applications.

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CHAPTER 5

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  1. CHAPTER 5 Network Applications

  2. Chapter Outline • 5.1 Network Applications • 5.2 Web 2.0 • 5.3 E-Learning and Distance Learning • 5.4 Telecommuting

  3. Learning Objectives • Describe the four major network applications. • Discuss the various techniques, applications, and web sites that fall under the umbrella of Web 2.0. • Differentiate between e-learning and distance learning. • Understand the advantages and disadvantages of telecommuting for both employers and employees.

  4. Chapter Opening Case P. 136 Hannaford Bros. HQ communications?? communications?? comm?? Advertising meats Checking out

  5. 5.1 Network Applications – 4 Categories • Network applications can be used for up to four purposes. • Discovery • Communications • Collaboration, and • Web 2.0 and/or Web Services

  6. Network Application Categories 1. Discovery • Discovery allows users to browse and search data sources, in all topic areas, on the Web. • Search engines • Computer programs that search for specific information by key words and report the results. • Metasearch engines • Search several engines at once and integrate the findings of the various search engines to answer queries posted by users. • Portals • Web-based, personalized gateway to information. • Discovery of material in foreign languages can also be accomplished on the Web because many engines perform automatic translation.

  7. Four Largest Search Engines • Google • Yahoo • Microsoft Network • Ask Handle Over 90 Percent Of All Searches.

  8. Other Interesting Search Engines • FilesTube • Search and download files from file sharing and upload sites • GoSasa • Metasearch engine that finds free online classified ads of all kinds.

  9. Interesting Search Engines (continued) • WeShow • Human-powered search engine for finding online video • SearchCrystal • Allows you to visualize search results • Gnosh • Metasearch tool that lets you search large media sites as well as social search engines

  10. Metasearch Engines • Surf-Wax • Metacrawler • Mamma • KartOO • Dogpile

  11. Publication of Material in Foreign Languages • Translation products include: • Altavista • Google • Trados

  12. Altavista Translator

  13. Google Language Tools

  14. Discovery - Portals • Web-based, personalized gateway that provides relevant information from different IT systems and the Internet using search and indexing techniques. • Commercial (public) portals • content for diverse communities and are most popular portals on the Internet. • Affinity portals • support communities such as a hobby group or a political party. • Mobile portals • Corporate portals • Industrywide portals

  15. Commercial Portal (example)

  16. Affinity Portal (example) Auburn University Alumni Affinity Portal

  17. A Corporate Portal Framework

  18. Corporate Portal (example) • Fictional Company’s Portal. • Note the toolbar on the left, which contains: administration, my ebusiness, my groupware, my productivity, my financials, and my utilities.

  19. Corporate Portal (example)

  20. Industrywide Portal (example) TruckNet Portal

  21. Network Application Categories 2. Communication • Electronic mail (e-mail) • Largest-volume application running on the Internet. • Web-based call centers (customer call center) • Provide effective personalize customer contact services as an important part of Web-based customer support. • Electronic chat room • A virtual meeting place where groups of regulars come to “gab”. • Voice Communication • digitizing your analog voice signals.

  22. Call Centers Call Center in India Call Center in the United States

  23. Electronic Chat Room

  24. Voice Communication • Two examples of Internet telephony. Voice-over IP (VoIP) digitizes your analog voice signals, sections them into packets, and sends them over the Internet. Skype Vonage

  25. Network Application Categories 3. Collaboration • Collaboration refers to efforts of two or more entities (individuals, teams, groups or organizations) who work together to accomplish certain tasks. • Work group • Refers specifically to two or more individuals who act together to perform some task. • Virtual group (team) • Group members are in different locations.

  26. Types of Collaboration • Virtual collaboration • The use of digital technologies that enable organizations or individuals to collaboratively plan, design, develop, manage and research products, services and innovative applications. • Workflow technologies • Facilitate the movement of information as it flows through the sequence of steps that make up an organization’s work procedures. Includes workflow management and workflow systems. • Groupware • Software products that support groups of people who share a common task or goal and who collaborate to accomplish it. • Teleconferencing • Use of electronic communication that allows two or more people at different locations to hold a simultaneous conference. • Videoconference • Participants in one location can see participants at other locations and share data, voice, pictures, graphics and animation by electronic means. • Web conferencing • Videoconferencing conducted over the Internet. • Real-time collaboration tools • Support synchronous communication of graphical and text information i.e. computer-based whiteboards.

  27. Workflow and Groupware Technologies

  28. Telepresence Systems - The Latest Version of Videoconferencing • Enable participants to seamlessly share data, voice, images, graphics, video, and animation electronically.

  29. Leading Telepresence Systems • Cisco Telepresence 3000

  30. Leading Telepresence Systems (continued) • Hewlett-Packard Halo System

  31. Leading Telepresence Systems (continued) • Polycom HDX 9000

  32. Whiteboard – A Real-time Collaboration Tool

  33. Network Application Categories 4. Web Services (5.2 Web 2.0) • Web 2.0 is a term describing changing trends in the use of Web technology and web design. • The aim is to enhance creativity, information sharing, and collaboration among users. • These concepts have led to the development and evolution of web-based communities and hosted services, such as social-networking sites, video sharing sites, wikis, blogs, and folksonomies. • Thus, Web 2.0 is a loose collection of the latest information technologies and applications, and the Web sites that use them.

  34. Web 2.0 Information Technologies and Applications • AJAX • A web development technique that allows portions of web pages to reload with fresh data instead of requiring the entire web page to reload. • Tagging • A tag is a keyword or term that describes a piece of information (e.g., blog, picture, article, video clip). • Blogs and blogging • A blog is a personal web site, open to the public, in which the site creator expresses his or her feelings or opinions.

  35. Web 2.0 Information Technologies and Applications (continued) Wikis used in business • Wikis • Web site on which anyone can post material and make changes to other material. • Really Simple Syndication (RSS) • RSS allows users to receive, or customize the information they receive when they want it without having to surf thousands of web sites. • Podcasts and Videocasts • A podcast is a digital audio file that is distributed over the web using RSS for playback on portable media players or PCs. A videocast is the same as a podcast, only with digital media and audio content.

  36. Categories of Web 2.0 Sites • Social Networking Sites • Allow users to upload their content to the web in the form of text, voice, images, and video. • Aggregators • Provide collection of content from the web (e.g., Technorati, Digg, Simple thred). • Mashups • A web site that takes content from a number of other web sites and mixes them together to create a new kind of content (e.g., SkiBonk, Healthmap, ChicagoCrime)

  37. Social Networking Sites

  38. More Social Networking Sites • BusinessWeekslideshow • Radar Networks has developed Twine, which claims to be the first Web 3.0 social networking site. • Each user’s Twine home page is a personal dashboard. Its central feature is a list of updates not unlike the Facebook News Feed—that allows a user to import any memo, website, video, or photo from anywhere on the desktop or Internet. • Twine then uses semantic web technology to automatically organize all of the user’s information by theme and then infer what other information might also interest that user.

  39. Aggregators • Provide collection of content from the web.

  40. Mashup (Skibonk) • A web site that takes content from a number of other web sites and mixes them together to create a new kind of content.

  41. Mashup (HealthMap)

  42. Mashup (ChicagoCrime)

  43. More Mashups • BusinessWeek slideshow

  44. Web Services and Service-Oriented Architecture • Web Services • Applications delivered over the Internet that users can select and combine through almost any device, from personal computer to cell phones. • Using a set of shared protocols and standards, web service applications permit different systems to share data and service without requiring humans to translate. • Service-Oriented Architecture • An IT architecture that makes it possible to construct business applications using web services. • The architecture enables the web services to be reused (often in multiple applications) across the organization.

  45. Four Protocols of Web Services • Extensible Markup Language (XML) • Simple Object Access Protocol (SOAP) • Web Services Description Language (WSDL) • Universal Description, Discovery, and Integration (UDDI)

  46. Web Services Architecture • Web services architecture has three major components: (1) Web services provider, (2) Web services directory, (3) Web services client (or consumer).

  47. Widgets Time widget Weather widget Date widget

  48. 5.3 E-Learning and Distance Learning • E-Learning • Learning supported by the Web. • Distance learning (DL) • Any learning situation in which teachers and students do not meet face-to-face.

  49. Benefits of E-Learning • Self-paced learning increases content retention. • Online materials deliver high-quality, current content. • Students have the flexibility of learning from any place at any time at their own pace. • Learning time generally is shorter, and more people can be trained due to faster training time. • Training costs can be reduced.

  50. Drawbacks of E-Learning • Instructors may need training to be able to teach electronically. • The purchase of additional multimedia equipment may be necessary. • Students must be computer literate and may miss the face-to-face interaction with instructors. • There are issues with assessing students’ work, as instructors really do not know who completed assignments.

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