V M O D Video

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V M O DVideo Music on DemandFinal
Interactive PrototypeMarvin ChiangAlvin
ChenSid KhoshooDaniel SchneiderTodd
Volkert
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Overview

• Product Justification
• Representative User Tasks
• Design Evolution
• Exploration of Final Design
• Demonstration

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Product Justification
Portable Video or Music

• Media and devices are advancing rapidly

• But existing solutions are still missing the
  point...

• Users want portability, customization, and
  variety without any hassles with the media and
  the device

• VMOD addresses all these issues
• Portability of the Palm Pilot
• Flexibility of advanced music searching
  playlists
  
• Freedom of music selection via music servers

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Product Justification
Portable Video and Music Solution Matrix
Easy-to-Use Advanced Customization
Easy-to-Customize Sharing
Device
Data sharing between users
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Representative User Tasks
Basic User Action Themes Targeted

• Direct manipulation while viewing or listening

• Searching for songs

• Customizing songs played

• Dedicating a song

• 3 tasks picked with increasing difficulty

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Representative User Tasks
Low Difficulty
Alvin wants to listen to some alternative music
and to see the video for the first song he hears.
While viewing the video, he then decides to pause
the video to see a frame and then continues
playing the video.
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Representative User Tasks
Medium Difficulty
Todd wants to request two songs, "Runaround Sue"
and any song from the album August and Everything
After. He also wants to save it as mylist and
then play it.
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Representative User Tasks
High Difficulty
Sid wants to send a dedication to Dr. James
Landay. He wants to dedicate the playlist
"mylist". He also wants to send a personal
message of "Go Bears!" with the dedication.
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Design Evolution
Drawingboard (Old School)

• CD player interface

• WinAmp terminology

• Visible configuration functions

• Too many screens for song
• customization

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Design Evolution
Low-Fidelity (Paper)

• Expanded functionality
• Music videos
• Multi-user networking

• Radio terminology
• Song requests
• Song dedications

• Reduced screens
• functionality maintained

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Design Evolution
High-Fidelity (Visual Basic)

• Low-Fidelity Usability Test

• Expanded search functions

• Feature hiding
• Save/Load/Edit request lists
• Add/Remove users

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Design Evolution
High-Fidelity (Palm OS)

• Heuristic Evaluation

• Separation of features

• Reinvention of playlists

• Feature visibility and duplication

• Online help

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Design Evolution
High-Fidelity (Final Palm OS)

• Final User Testing

• Organized the main screen

• No major functionality changes, just
  hiding/displaying

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Design Evolution
Main Screen
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Design Evolution
Search Screen
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Design Evolution
Dedication Screen
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Exploration of Final Design
Main Screen
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Exploration of Final Design
Search Screen
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Exploration of Final Design
Playlist Screen
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Exploration of Final Design
Dedication Screen
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Exploration of Final Design
Unimplemented Features

• Entire back-end (ICQish model)

• Search result tree widget

• Speakers/headphones and a microphone

• Streaming video/music

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Demonstration
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Summary
User Interface Design

• Evolved through usability testing

• Tasks changed slightly from the initial concept

• Augments existing music/video interface models

• Easy to use for all ages -- basic features are
  intuitive

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Summary
VMOD targets the portable video and music market

• Easy-to-use Uses existing music metaphors

• Advanced customization Multiple searching
  categories

• Advanced customization Playlist support

• Easy-to-customize No bulky media

• Data Sharing Playlists and dedications

For more information and merchandise visit
http//scotland.cs.berkeley.edu/cs160/music-on-dem
and/notebook.html