Process of design and usability
evaluation of a telepsychology web
and virtual reality system for the
elderly: Butler
Diana Castillaa, AzucenaGarcia-Palaciosa, JuanaBreto, IgnacioMirallesa,c,
Rosa Marı´a Ban˜ osb,c, ErnestinaEtchemendyc, LuisFarfallinia,
CristinaBotellaa,c
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Int. J. Human-Computer Studies 71Date: 20 Nov. 2012 , Page(s): 350-362
Chairman:
Presenter : Hoe Jing Tey
Advisor :
Dr. Yen – Ting Chen
Date :
2014.12.10
2
Outline
 Introduction
 Design and evaluation of the Butler system
 Lessons Learned
 Conclusion
 References
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Introduction
 Users number in Internet World Stats(2011)
 December 2000  360 million
 August 2010  1966 million
 Technology gap between two generations
 Wresh(1996)
 Raising the need through the Information and Communication
Technologies(ICTs)
 Shorten the distance between technology and the non-users
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Investigation
 Internet usage of 12,666 people between 16 and 74 years old
(Norway, Austria, Sweden, UK, Spain -- 2011)
 Non-users(42% from the sample)
 Sporadic Users(18% from the sample)
 Instrumental Users(18% from the sample)
 Entertainment Users(10% from the sample)
 Advance Users(12% from the sample)
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Butler System
 Web technology and Virtual Reality(VR)
 Elderly population is the most affected age group by this digital
breech
 Helping and supporting them throughout the process
 Support and help from a psychological point
 Virtual reality system(VR)
 Mood induction procedures
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Design and evaluation of the
butler system
 Initial specifications of the butler system
 Hardware
 Sample
 Inclusion criteria
 Stages of the study
 Procedure
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Initial specifications of the butler
system
 Web technology and Virtual Reality(VR)
 Group of Clinical Psychology, a Usability expert, a team of
engineers and graphics designer of Web applications and Virtual
reality
 Butler system
 Social Tools
 Playful Tools
 Psychological Tools
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Social Tools
Videoconferencing
 Connection between friends
 Green frame, Red frame, Gray frame
 Simulating the sound of a phone
 Email
 Possibility of attaching images
 Choose address -> write the text message -> choose image ->
preview -> send
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Social Tools
 The Book of Life
 Blog-type application
 Share their memories through text, photographs and music
 Choose private or shared
 Improve communication, increase the number of relationship
 Friends
 Widen contacts by searching for people by affinity
 Offer suggestions of possible contacts with similar database
profiles
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Playful Tools
 My memories
 Online music and images library
 Enjoy privately or share them
 Internet
 Integrate the users in the use of internet
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Psychological Tools
 Walking through Nature
 Two virtual environment based in a natural scenario
 Promote positive emotions
 Elements
 Path
 Crossroads
 Tree
 Bridge
 Lake
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Hardware
 Any type of computer
 PC , webcam and network connection
 “BigKeys” keyboard with ABC key order
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Sample
 10 participants(age 60~72 years old)
 Non-users to the computer or cell phone or other devices
 Relationship with ICT was limited to TV,DVD or stereo
 Live at a retirement home in Valencia,Spain
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Inclusion criteria
 The following inclusion criteria was used
 People over 60
 With no cognitive deterioration
 With a proper audition level to be able to carry out an interview
 With a proper vision level to be able to see Graphics material
shown at the sessions
 Who were computer illiterate
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Stages of the study
 Stages 1: Iconography
 Iconography was analyzed by interviewing real users to obtain
feedback
 Stages 2: Navigation
 “cognitive walk through”
 Adopt the role and builds the task scenarios
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Stages of the study
 Stages 3 : Help
 Specific and possible action list
 Stages 4 : Evaluation through heuristics
 Assessed the software using recognized usability principles
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Procedure
 Iconography evaluation
 Navigation design
 Navigation in the VR environments
 Design of the help
 Evaluation through heuristics
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Iconography evaluation
 Two meeting with the objectives of testing
 The metaphors used in the iconography
 Iconography’s cause-effect relation
 Question
 What is each icons use？
 What will happen when each icons is selected？
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Initial iconography of the Butler
System
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Butler Iconography 2
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Iconography modifications after
users’ test
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Navigation design
 Web navigation
 Several web technology-based tools and one virtual reality tool
 Linear navigation
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Initial design of the graphic e-mail
interface
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Navigation in the VR environments
 Psychological objective
 Positive mood induction
 This induction is carried out in various virtual locations
 Tree
 Bridge
 Lake
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Butler virtual environment sketch
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Design of the help
 Lack of understanding basic terms
 Ex. Email, Internet, videoconference,
 Help section has designed to accommodate two levels
 Elementary levels
 Advanced levels
 Written text
 Large-font (24px)
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Modifications graphic interface
due to users’ help
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Evaluation through heuristics
 10 Usability Heuristics for User Interface Design
 Visibility of system status
 Match between system and the real world
 User control and freedom
 Consistency and standards
 Error prevention
 Recognition rather than recall
 Flexibility and efficiency of use
 Aesthetic and minimalist design
 Help users recognize, diagnose, and recover from errors
 Help and documentation
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Lessons Learned
 Guidelines and recommendations are not enough
 Simply the application
 Limited by 3-D space
 Range of user’s abilities
 Design and usability evaluation process
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Conclusion
 Mental model is very different to the way ICT’s operate
 Simplify the number, adding visual and audible aids
 Mono-application system
 Mental model of the elderly still can be represented
 Recommendation for usability is not enough information to
develop system
 Limitation
 Cultural
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References
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Wresh, W., 1996. Disconnected. Haves and Have-Nots in the Information Age New Brunswick. Rutgers University Press, Nueva Jersey
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