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Information Technology Foundations-BIT 112 CHAPTER 5 Network Applications.

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Presentation on theme: "Information Technology Foundations-BIT 112 CHAPTER 5 Network Applications."— Presentation transcript:

1 Information Technology Foundations-BIT 112 CHAPTER 5 Network Applications

2 Information Technology Foundations-BIT 112 2 Chapter Outline 5.1 Network Applications 5.2 Web 2.0 5.3 E-Learning and Distance Learning 5.4 Telecommuting

3 Information Technology Foundations-BIT 112 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 Information Technology Foundations-BIT 112 4 Chapter Opening Case P. 136 Hannaford Bros. HQ Checking out Advertising meats communications?? comm??

5 Information Technology Foundations-BIT 112 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 Information Technology Foundations-BIT 112 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 Information Technology Foundations-BIT 112 7 Four Largest Search Engines Google Yahoo Microsoft Network Ask Handle Over 90 Percent Of All Searches.

8 Information Technology Foundations-BIT 112 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 Information Technology Foundations-BIT 112 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 Information Technology Foundations-BIT 112 10 Metasearch Engines Surf-Wax Metacrawler Mamma KartOO Dogpile

11 Information Technology Foundations-BIT 112 11 Publication of Material in Foreign Languages Translation products include: –Altavista –Google –Trados

12 Information Technology Foundations-BIT 112 12 Altavista Translator

13 Information Technology Foundations-BIT 112 13 Google Language Tools

14 Information Technology Foundations-BIT 112 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 Information Technology Foundations-BIT 112 15 Commercial Portal (example)

16 Information Technology Foundations-BIT 112 16 Affinity Portal (example) Auburn University Alumni Affinity Portal

17 Information Technology Foundations-BIT 112 17 A Corporate Portal Framework

18 Information Technology Foundations-BIT 112 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 Information Technology Foundations-BIT 112 19 Corporate Portal (example)

20 Information Technology Foundations-BIT 112 20 Industrywide Portal (example) TruckNet Portal

21 Information Technology Foundations-BIT 112 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 Information Technology Foundations-BIT 112 22 Call Centers Call Center in the United States Call Center in India

23 Information Technology Foundations-BIT 112 23 Electronic Chat Room

24 Information Technology Foundations-BIT 112 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 Information Technology Foundations-BIT 112 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 Information Technology Foundations-BIT 112 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 Information Technology Foundations-BIT 112 27 Workflow and Groupware Technologies

28 Information Technology Foundations-BIT 112 28 Telepresence Systems - The Latest Version of Videoconferencing Enable participants to seamlessly share data, voice, images, graphics, video, and animation electronically.

29 Information Technology Foundations-BIT 112 29 Leading Telepresence Systems Cisco Telepresence 3000

30 Information Technology Foundations-BIT 112 30 Leading Telepresence Systems (continued) Hewlett-Packard Halo System

31 Information Technology Foundations-BIT 112 31 Leading Telepresence Systems (continued) Polycom HDX 9000

32 Information Technology Foundations-BIT 112 32 Whiteboard – A Real-time Collaboration Tool

33 Information Technology Foundations-BIT 112 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 Information Technology Foundations-BIT 112 34 Most Common Web 2.0 Memes A meme is any unit of cultural information, such as a practice or idea, that is transmitted verbally or by repeated action from one person to another. Examples include thoughts, ideas, theories, practices, habits, etc.

35 Information Technology Foundations-BIT 112 35 Web 2.0 (continued) A look at some of the many Web 2.0 sites.

36 Information Technology Foundations-BIT 112 36 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.

37 Information Technology Foundations-BIT 112 37 Web 2.0 Information Technologies and Applications (continued) 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. Wikis used in business

38 Information Technology Foundations-BIT 112 38 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)

39 Information Technology Foundations-BIT 112 39 Social Networking Sites

40 Information Technology Foundations-BIT 112 40 More Social Networking Sites BusinessWeek slideshowslideshow 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.

41 Information Technology Foundations-BIT 112 41 Aggregators Provide collection of content from the web.

42 Information Technology Foundations-BIT 112 42 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.

43 Information Technology Foundations-BIT 112 43 Mashup (HealthMap)

44 Information Technology Foundations-BIT 112 44 Mashup (ChicagoCrime)

45 Information Technology Foundations-BIT 112 45 More Mashups BusinessWeek slideshowslideshow

46 Information Technology Foundations-BIT 112 46 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.

47 Information Technology Foundations-BIT 112 47 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)

48 Information Technology Foundations-BIT 112 48 Web Services Architecture Web services architecture has three major components: (1) Web services provider, (2) Web services directory, (3) Web services client (or consumer).

49 Information Technology Foundations-BIT 112 49 Widgets Time widget Weather widget Date widget

50 Information Technology Foundations-BIT 112 50 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.

51 Information Technology Foundations-BIT 112 51 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.

52 Information Technology Foundations-BIT 112 52 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.

53 Information Technology Foundations-BIT 112 53 Virtual Universities (example)

54 Information Technology Foundations-BIT 112 54 5.4 Telecommuting Telecommuting allows workers to work anytime and anyplace.

55 Information Technology Foundations-BIT 112 55 Telecommuting Benefits For Employees –Reduced stress, improved family life –Employment opportunities for single parents and persons with disabilities For Employers –Increased productivity –Ability to retain skilled employees

56 Information Technology Foundations-BIT 112 56 Telecommuting Disadvantages For Employees –Feelings of isolation –No workplace visibility –Potential for slower promotions For Employers –Difficulties in supervising work –Potential information security problems –Additional training costs

57 Information Technology Foundations-BIT 112 57 Do you want to telecommute?

58 Information Technology Foundations-BIT 112 58 Chapter Closing Case P. 162 First Vermont Bank, a part of the TD Banknorth family


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