Unit 3: Multimedia - PowerPoint PPT Presentation

Loading...

PPT – Unit 3: Multimedia PowerPoint presentation | free to download - id: 7de31f-NTJmM



Loading


The Adobe Flash plugin is needed to view this content

Get the plugin now

View by Category
About This Presentation
Title:

Unit 3: Multimedia

Description:

Unit 3: Multimedia The Development Process What is Multimedia? An interactive piece of software using several types of media: Text Graphics (photographs or ... – PowerPoint PPT presentation

Number of Views:60
Avg rating:3.0/5.0
Slides: 27
Provided by: Shon45
Learn more at: http://www.shawlandsacademy.glasgow.sch.uk
Category:

less

Write a Comment
User Comments (0)
Transcript and Presenter's Notes

Title: Unit 3: Multimedia


1
Unit 3 Multimedia
  • The Development Process

2
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

3
The Development Process/Cycle
Design may change if application does not work as
expected
Maintenance
4
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.

5
Design Stage
  • Navigation structure?
  • The HCI (Human Computer Interface)
  • What does each screen look like?
  • What media elements will be included?
  • Storyboards may be produced for this.

6
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.

7
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.

8
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.

9
Unit 3 Multimedia
  • The Development Process

10
The Development Process mnemonic
A Dance In The Dark Every Monday
11
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

12
WYSIWYG
13
Text Editor
14
WYSIWYG Vs Text Editors
Advantages Disadvantages
Text Editor Simple and places less demands on system. Provides greater control over the application Difficult to Visualise output Dependant on programming or text-based commands knowledge
WYSIWYG Easy creation and editing of application Ideal for beginners Complex software that puts higher demands on system. Software tends to be expensive
15
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

16
Methodologies used in creation of multimedia
applications
  • Who makes authoring software?
  • Macromedia
  • Flash, Dreamweaver and Director
  • Microsoft
  • FrontPage
  • Adobe
  • GoLive
  • Others
  • Mediator, HyperStudio, etc

17
Methodologies used in creation of multimedia
applications
  • Who makes presentation software?
  • Microsoft
  • PowerPoint (Most common)
  • Others
  • LiquidMedia
  • Cre8
  • Many others exist but not common

18
Authoring Vs Presentation
Advantages Disadvantages
Authoring Advanced features give developer more control over final application Difficult to learn, special training generally required Can be difficult to debug complex application
Presentation Simple commands Easy to learn Limited features
19
Unit 3 Multimedia
The Development Process
20
Displaying Multimedia Data
  • Distribution Technologies
  • Web Pages
  • Embedded into Web pages
  • ActiveX Object
  • Visual Basic Script
  • Java Applet
  • JavaScript Program

21
Displaying Multimedia Data
  • Distribution Technologies (cntd)
  • Stand alone Program (executable)
  • Multimedia file using player software
  • Macromedia Flash or Shockwave
  • PowerPoint
  • QuickTime

22
Displaying Multimedia Data
  • Distribution Medium
  • Web pages on the Internet
  • Web pages on an Intranet
  • CD-ROM
  • DVD
  • Digital Broadcast System

23
Displaying Multimedia Data
  • Embedded Data
  • Applications include files for sound, video etc
  • These are combined (embedded) into the actual
    program file itself

Advantages Disadvantages
File management is easier as there is only one file Easier to implement security File could be very large Entire file must be downloaded before it can be played Individual data items cannot be updated separately
24
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

25
Codecs Container Files
  • Codecs (Compressor/Decompressor)
  • Main purpose is to reduce the file size while
    keeping as much quality as possible
  • Enables faster downloads
  • Often built into programs but sometimes require
    downloaded as a add-in

26
Codecs Container Files
  • Container File
  • Contains several compressed files.
  • This can be transmitted over a network and the
    individual files regenerated at the receiving end
  • Much more convenient than sending multiple files
  • A ZIP file is an example of a container file
About PowerShow.com