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Chapter 10. Multimedia and the Web. Learning Objectives. Describe what multimedia is and some advantages and disadvantages of using it. Explain the difference between the following multimedia elements: text, graphics, animation, audio, and video.

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Chapter 10

Chapter 10

Multimedia and the Web


Learning objectives
Learning Objectives

  • Describe what multimedia is and some advantages and disadvantages of using it.

  • Explain the difference between the following multimedia elements: text, graphics, animation, audio, and video.

  • List several Web-based and non-Web-based multimedia applications.


Learning objectives cont d
Learning Objectives, cont’d.

  • Briefly describe the basic steps and principles involved with multimedia and Web site design.

  • Discuss the various tasks involved with multimedia and Web site development.

  • Speculate as to the format of multimedia in the future.


Overview
Overview

  • This chapter covers:

    • The elements of multimedia

    • Common multimedia applications

    • Design principles of multimedia

    • Multimedia and Web development


What is multimedia
What Is Multimedia?

  • Multimedia refers to any type of application or presentation that uses more than one type of media.

  • An application is interactive if the user can control the flow or content by using a touch screen, keyboard, or mouse to select options or turn pages.


Advantages and disadvantages of using multimedia
Advantages and Disadvantages of Using Multimedia

  • Advantages

    • Can fit a variety of learning styles

    • More interesting and enjoyable experience

    • Can be easier to understand

  • Disadvantages

    • Cost

    • Amount of storage space required

    • Limitations of Web-based multimedia


Multimedia elements text
Multimedia Elements:Text

  • Serif typefaces are typically used for large bodies of text; sans serif typefaces are more commonly used for headings.

  • Different typefaces can convey widely different feelings and impressions.

  • Point size should be selected carefully to make sure text is readable while not taking up too much of the screen.


Multimedia elements graphics
Multimedia Elements: Graphics

  • Graphics are digital representations of images.

  • Clip art and stock photographs are widely available on CD and on the Web.

  • Graphic file formats include:

  • BMP

  • TIF

  • GIF

  • JPEG

  • PNG


Multimedia elements animation
Multimedia Elements: Animation

  • Animation involves a series of graphical images displayed one after another to simulate movement.

  • Page transitions, animated GIFs, Java applets, Shockwave,and Flash are common types of animation.

  • Animation can also be added using JavaScript or a programming language.


Multimedia elements audio
Multimedia Elements: Audio

  • Audio is sound, such as music, spoken voice, and sound effects.

  • Audio can be recorded using a microphone or MIDI device, captured from a CD, or downloaded from the Internet.

  • Common audio formats include:

  • wav

  • mp3

  • midi

  • aif

  • dcr

  • swf


Multimedia elements video
Multimedia Elements: Video

  • Video usually begins as a continuous stream of visual information; it is broken down into individual frames when recorded.

  • Can be recorded using standard video camera and then input into computer, or recorded directly into PC or onto digital media using digital video camera.

  • Common formats include avi, mpeg, mov, and rm.


Non web based multimedia applications
Non-Web-Based Multimedia Applications

  • Computer-based training

  • Entertainment

  • Information kiosks

  • Business presentations

  • Reference materials

  • Virtual reality


Web based multimedia applications
Web-Based Multimedia Applications

  • Web-based training

    • Self-paced instruction

    • Ability to update material

    • Immediate feedback

  • Entertainment

    • Online games

    • Distribution of music

  • Virtual reality

    • VRML allows Web delivery


Basic design principles
Basic Design Principles

  • Applications should be interesting and exciting.

  • Web site content should be changed on a regular basis.

  • Navigation should be clear, consistent, and easy to understand.

  • Web site pages should load quickly, and CD applications should fit on one CD whenever possible.


Basic design principles cont d
Basic Design Principles, cont’d.

  • A Web site should work on a variety of PC configurations. Consider carefully:

    • Features that require a specific browser

    • Features that require little-used plug-ins

    • Content wider than a typical browser window

    • High-bandwidth items


Determining the intended audience and objectives
Determining the Intended Audience and Objectives

  • The intended audience will help determine the appearance of the application.

  • The objectives will help determine the content.


Using flowcharts page layouts and storyboards
Using Flowcharts, Page Layouts, and Storyboards

  • Flowcharts can be used to describe how pages of the site or application relate to one another.

  • Page layouts are commonly used to design the appearance of a Web site.

  • Storyboards are commonly used with multimedia applications to illustrate the appearance and content of each screen in an application.


Navigational design considerations
Navigational Design Considerations

  • A site should be well organized (use the three-mouse-clicks rule).

  • Larger sites can use a sitemap.

  • Other navigational tools include:

    • Drop-down menus

    • Search boxes

    • Text- and image-based navigation bars

    • Frames


Access considerations
Access Considerations

  • Modifications should be made for users with nontraditional PCs, such as:

    • Mobile devices

    • Text-only browsers

    • Screen readers

  • Federal Web sites need to comply with Web Accessibility Initiative (WAI) guidelines.


Multimedia and web site development
Multimedia and Web Site Development

  • Development process includes three steps:

    • Creating the multimedia elements

    • Creating the application or Web site

    • Testing the site or application


Creating the multimedia elements
Creating the Multimedia Elements

  • Graphics software

    • Painting and drawing programs

    • Image editing programs

  • Audio and video software

  • Animation software


Creating the application or web site
Creating the Application or Web Site

  • Multimedia authoring software

    • Director, Authorware, Toolbook

  • Web site authoring software

    • Dreamweaver, HomeSite, GoLive

  • Storefront software


Testing the site or application
Testing the Site or Application

  • Test navigation

  • Test usability

  • Proofread carefully

  • Web site considerations:

    • Browser and computer incompatibility

    • Download time

    • Broken links

  • Stress test


The future of multimedia
The Future of Multimedia

  • Broadband

    • Merging TV and multimedia Web sites

    • Interactive TV and TV on demand

  • Multimedia capabilities built into:

    • Internet access devices

    • Game boxes


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