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Chapter Objectives

Chapter Objectives. Describe the Internet and the World Wide Web Discuss ways to access the Internet and the Web Categorize types of Web sites Identify Web design tools Explain Web design roles. The Internet and the World Wide Web.

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Chapter Objectives

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  1. Chapter Objectives • Describe the Internet and the World Wide Web • Discuss ways to access the Internet and the Web • Categorize types of Web sites • Identify Web design tools • Explain Web design roles Chapter 1: The Environment and the Tools

  2. The Internet and the World Wide Web • The Internet is a worldwide public network that connects millions of private networks • A network is composed of several computers, printers, and data file storage devices connected together to share computing resources and data • Internet 2 is a major cooperative initiative among academia, industry, and the government to increase the Internet’s possibilities and correct some of its challenges Chapter 1: The Environment and the Tools

  3. The Internet and the World Wide Web Chapter 1: The Environment and the Tools

  4. The Internet and the World Wide Web • The World Wide Web (WWW or Web) consists of Internet-connected computers called Web serverson which Web pages are stored • A Web site is a group of related Web pages • Starts with a home page • Pages are linked together with a hyperlink, or link • Surfing the Web Chapter 1: The Environment and the Tools

  5. Influence on Society Chapter 1: The Environment and the Tools

  6. Communication • Bookmarking / favorites • Electronic mail (e-mail) • Internet Relay Chat (IRC) • Web-based chat • IM chat • Collaborative workspaces • Virtual meeting spaces • Weblog (blog) • Video sharing (video blogging) Chapter 1: The Environment and the Tools

  7. Communication • Social networking • Social bookmarking • Massively multiplayer online games (MMOGs) • 3D virtual worlds Chapter 1: The Environment and the Tools

  8. Education • Formal and informal teaching and learning • Enhances traditional teaching methods • Instructors often publish syllabi, grades, Web page links for research, and more for their students Chapter 1: The Environment and the Tools

  9. Entertainment • Popular entertainment sites include music, videos, sports, games, and more • News Web sites allow you to read news stories, and some even allow you to watch video clips • Some provide interactive elements Chapter 1: The Environment and the Tools

  10. Business • Electronic commerce (e-commerce) is the practice of conducting business transactions online, such as shopping • Business-to-consumer (B2C) • Business-to-business (B2B) • Consumer-to-consumer (C2C) Chapter 1: The Environment and the Tools

  11. Ways to Access the Internet and the Web • One way to access Web sites is through the public switched telephone network (PSTN) • Worldwide telephone system that handles voice-oriented telephone calls • Integral part of computer communications • Data, instructions, and information can be sent using dial-up lines or dedicated lines Chapter 1: The Environment and the Tools

  12. Ways to Access the Internet and the Web Chapter 1: The Environment and the Tools

  13. Dial-Up Lines • A dial-up line is a temporary connection that uses one or more analog phone lines • Requires a modem on each end of the connection • Two versions of Internet access using dial-up lines • Regular dial-up • Slowest and unusual for many of today’s online activities • High-speed dial-up • Uses acceleration servers Chapter 1: The Environment and the Tools

  14. Digital Dedicated Lines • A dedicated line is a connection that always is established between two communications devices • Can be analog or digital • Quality, consistency, and speed of the connection are better than a dial-up line • Businesses often use dedicated lines Chapter 1: The Environment and the Tools

  15. Dedicated Lines • Three popular types of digital dedicated lines • Integrated Services Digital Network (ISDN) • Digital Subscriber Lines (DSL) • Asymmetric digital subscriber line (ADSL) • T-carrier Lines • T-1 line • Fractional T-1 line • T-3 line Chapter 1: The Environment and the Tools

  16. ISDN Lines • Integrated Services Digital Network • ISDN allows a single telephone line to carry three or more signals (multiplexing) • Faster than dial-up Chapter 1: The Environment and the Tools

  17. DSL • Digital Subscriber Line • Transmits at fast speeds on existing standard copper telephone wiring • Some installations can provide a dial tone • Asymmetric Digital Subscriber Line (ADSL) • Faster to receive data than to send data • Ideal for Internet users Chapter 1: The Environment and the Tools

  18. T-carrier Lines • Any of several types of digital lines that carry multiple signals over a single communications line • Extremely fast data transfer rates • T1 Line • Most popular T-carrier line • Fractional T1 • T3 Line • Equivalent to 28 T1 lines Chapter 1: The Environment and the Tools

  19. Cable Television Lines • Allows users to connect to the Internet through their cable line • Rapid transfer rates using a cable modem connected to a CATV line Chapter 1: The Environment and the Tools

  20. Fixed and Mobile Wireless Access • Internet connectivity for users who do not have access to services such as DSL or cable • Satellite technology used instead of telephone lines • Radio signals provide high-speed connection • Wireless fidelity (Wi-Fi) Chapter 1: The Environment and the Tools

  21. Internet Service Providers • Internet Service Provider (ISP) • Has permanent Internet connection • Provides temporary connections • Regional ISP • National ISP • Earthlink Chapter 1: The Environment and the Tools

  22. Web Browsers • A Web browser is a specific software program that requests, downloads, and displays Web pages stored on a Web server Chapter 1: The Environment and the Tools

  23. Web Browsers • Access a Web page by entering its Uniform Resource Locator (URL) into the Web browser’s Address bar • URL is comprised of the protocol, domain name and top-level domain designation • Hypertext Transfer Protocol (HTTP) • Domain name can be an IP address or a text version of this address Chapter 1: The Environment and the Tools

  24. Web Browsers Chapter 1: The Environment and the Tools

  25. Alternative Web Page Viewing Devices • Smartphones • Can be used as a regular cell phone and offers other features • Personal digital assistant (PDA) • Popular type of handheld computer used to manage personal information and access the Internet Chapter 1: The Environment and the Tools

  26. Types of Web Sites Chapter 1: The Environment and the Tools

  27. Personal • Limited developmental resources • Uses • Advertise employment credentials • Meet new friends • Share common interests • Do not post information that can be misused Chapter 1: The Environment and the Tools

  28. Organizational / Topical • Organization Web sites contain information on particular organizations • Topical Web sites contain information on the developer’s interests and hobbies • Not all information is accurate Chapter 1: The Environment and the Tools

  29. Commercial • Used to promote and sell a product or service • More complex commercial Web sites generally produce greater revenue Chapter 1: The Environment and the Tools

  30. Search Tools • Web-based search tools • Search engines • Keywords • Metasearch engines • Search directories • Search engine might use a variety of methods to create its index • Spiders or robots • Meta tags • Search engine optimization (SEO) • Subject directories Chapter 1: The Environment and the Tools

  31. Search Tools Chapter 1: The Environment and the Tools

  32. Portals • A portal is a Web site that offers a starting point for accessing information • General consumer portal • Personal portal • Vertical portal • Corporate portal Chapter 1: The Environment and the Tools

  33. Web Design Tools • Does the new technology meet currently accepted standards for Web development and design? • What specifically can the new technology do to further the purpose of my Web site? • How will implementation of the new technology affect my Web site’s visual appeal, accessibility, and usability? • What impact will adding this technology have on security and other Web site elements? • What are the direct and indirect costs of implementing the new technology? • How soon will I see a return on investing in this new technology? Chapter 1: The Environment and the Tools

  34. Markup Languages • Hypertext Markup Language (HTML) • Extensible Markup Language (XML), • Extensible HTML (XHTML) • Wireless Markup Language (WML) Chapter 1: The Environment and the Tools

  35. Hypertext Markup Language • Markup language used to create Web pages • Defines a Web page through tags or markups • World Wide Web Consortium (W3C) sets standards for HTML Chapter 1: The Environment and the Tools

  36. Extensible Markup Language (XML), Extensible HTML (XHTML), and Wireless Markup Language (WML) • XML uses markups to define the content of a Web page • XHTML is a markup language that is a combination of the features of XML and HTML • WML is a subset of XML • Used to design Web pages for microbrowsers Chapter 1: The Environment and the Tools

  37. Cascading Style Sheets • Standardize the presentation of the content by applying styles to such elements • Type • Margins • Positioning • Colors Chapter 1: The Environment and the Tools

  38. Scripting Languages • Short programs that run on the server or the browser • Browsers must support this technology • Scripting languages • JavaScript • Active Server Pages (ASP) • PHP: Hypertext Preprocessor (PHP) • MySql • Active content • Malware Chapter 1: The Environment and the Tools

  39. Text and HTML Editors • A text editor is software used to create plain (ASCII) text files • An HTML editor is a text editor enhanced with special features that are used to more easily insert HTML tags and their attributes • HTML-Kit® • CoffeeCup® • BBEdit® • NoteTab® Chapter 1: The Environment and the Tools

  40. WYSIWYG • Packages that automatically generate HTML code • There are packages available for every level of expertise • Adobe GoLive® • Adobe Dreamweaver® • Microsoft Expression Web® Chapter 1: The Environment and the Tools

  41. Web Templates and Other Design Technologies • A Web template is a predesigned model that can be customized for fast Web site or Web page creation or updating • An intranet is a private network within a large organization or commercial entity that uses Internet and Web technologies to share information among only its members, employees, or business partners • A content management system (CMS) facilitates the management of Web content development • Content repository Chapter 1: The Environment and the Tools

  42. Web Design Roles • Web design can be done independently or with a partner or group • Creative Role • Content writer / editor • Web page designer • Web artist / graphic designer • Multimedia producer Chapter 1: The Environment and the Tools

  43. Web Design Roles • Hi-Tech Role • Web programmer • Database developer • Network / security administrator • Oversight Role • Content managers • Webmaster Chapter 1: The Environment and the Tools

  44. Chapter Summary • Describe the Internet and the World Wide Web • Discuss ways to access the Internet and the Web • Categorize types of Web sites • Identify Web design tools • Explain Web design roles Chapter 1: The Environment and the Tools

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