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Unit 3: Multimedia. The Development Process. What is Multimedia?. An interactive piece of software using several types of media: Text Graphics (photographs or illustrations) Audio (synthesised or digitised) Video Animation Multimedia Applications can be: Linear or non-linear

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Unit 3: Multimedia

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Unit 3 multimedia l.jpg

Unit 3: Multimedia

The Development Process


What is multimedia l.jpg

What is Multimedia?

  • An interactive piece of software using several types of media:

    • Text

    • Graphics(photographs or illustrations)

    • Audio(synthesised or digitised)

    • Video

    • Animation

  • Multimedia Applications can be:

    • Linear or non-linear

    • Simple or extremely complex

    • For example:

      • PowerPoint presentation

      • Sophisticated and basic web pages

      • Multimedia games


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Analysis

Design

Implementation

Testing

Documentation

Evaluation

The Development Process/Cycle

Design may change if application does not work as expected

Maintenance


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Analysis Stage

  • This stage is make it absolutely clear what the project is supposed to do.

    • The aims of the application

    • Who will be using it?

    • What will be in it?

    • How will it be distributed?

    • How much money can be spent?

    • How long have you got?

    • Input/output?

  • At the end of the stage a requirements specification will be produced.


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Design Stage

  • Navigation structure?

  • The HCI (Human Computer Interface)

  • What does each screen look like?

  • What media elements will be included?

    Storyboards may beproduced for this.


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Implementation Stage

  • Make it:

    • Create and combine all the media elements using the pre-decided authoring software.

Testing Stage

  • Does each screen and link work as expected?

    • If not can it be fixed or does it have to have the design altered.


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Documentation Stage

  • Write the documentation:

    • The technical guide

      • What are the hardware requirements

    • The user guide

      • Advice on how to use the software and provide users with any other help.


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Evaluation Stage

  • Does it meet the specifications made at the analysis stage?

Maintenance Stage

  • Fixing any bugs that have been found after its released.

  • Adapting and updating the application to suit clients needs.


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Unit 3: Multimedia

The Development Process


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Analysis

Design

Implementation

Testing

Documentation

Evaluation

Maintenance

The Development Process mnemonic

A

Dance

In

The

Dark

Every

Monday


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Methodologies used in creation of multimedia applications

Text editor:

  • Application is created using plain text

    • e.g. Creating simple web pages using HTML.

      WYSIWIG editors:

  • Previewing applications under development to check that What You See Is What You Get.

    • Eg PowerPoint to create a presentation


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WYSIWYG


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Text Editor


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WYSIWYG Vs Text Editors


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Methodologies used in creation of multimedia applications

Authoring Software

  • Application can be customised using:

    • Program code or scripting

    • Icon based setting up of properties (without the need to learn programming code)

      Presentation Software

  • Enables the creation of a sequence of slides

  • Allows hyper linking to different slides or files


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Methodologies used in creation of multimedia applications

  • Who makes authoring software?

    • Macromedia

      • Flash, Dreamweaver and Director

    • Microsoft

      • FrontPage

    • Adobe

      • GoLive

    • Others

      • Mediator, HyperStudio, etc


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Methodologies used in creation of multimedia applications

  • Who makes presentation software?

    • Microsoft

      • PowerPoint (Most common)

    • Others

      • LiquidMedia

      • Cre8

      • Many others exist but not common


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Authoring Vs Presentation


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Unit 3: Multimedia

The Development Process


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Displaying Multimedia Data

Distribution Medium

  • Web pages on the Internet

  • Web pages on an Intranet

  • CD-ROM

  • DVD

  • Digital Broadcast System


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Displaying Multimedia Data

Embedded Data

  • Applications include files for sound, video etc

  • These are combined (embedded) into the actual program file itself


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Displaying Multimedia Data

Streamed data

  • Data broadcast over a network

    • radio stations broadcast over the Internet

    • View film clips

  • Played as it is received

  • No need to download entire file before listening/viewing it

  • Requires a plug in e.g. Real Player


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