HCI
© 2010 Pearson Addison-Wesley. All rights reserved.
Designing the User Interface:
Strategies for Effective Human-Computer Interaction
Fifth Edition
Ben Shneiderman & Catherine Plaisant
in collaboration with
Maxine S. Cohen and Steven M. Jacobs
CHAPTER 9:
Collaboration and Social Media Participation
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Characteristics and examples of collaboration and social media participation
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Collaboration
- Goals of Cooperation
Focused partnerships
Lecture or demo
Conference
Structured work processes
Meeting and decision support
Electronic commerce
Tele-democracy
On-line communities
Collaboratories
Telepresence
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Time/space matrix model of group-supported work
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Asynchronous distributed interfaces:
Different place, different time
- Electronic mail:
can be too loosely structured
sometimes overwhelming
transient
tools
filtering
archiving
mailing lists
discussion groups
typically text-only, but increasingly includes other structured objects
graphics
sounds
animations
web pointers
video
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Asynchronous distributed interfaces:
Different place, different time (cont.)
- Electronic mail (cont.):
Email on mobile devices
Online directories
Web services with E-mail
E.g. Hotmail, and Yahoo! Mail
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E-mail message on an iPhone
Google’s web-based email (Gmail)
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Asynchronous distributed interfaces:
Different place, different time (cont.)
- Newsgroups, listservers, discussion boards, conferences, social media participation web sites, blogs, and wikis
focused electronic discussions by group of people
USENET newsgroups
each group dedicated (more or less) to one topic
like ordered posting on bulletin board
users read as many previous notes and related comments as they wish
open to all
listserv
individual must subscribe to receive e-mail notices
may be moderated by a leader
may be mail reflector
users can get flooded with listserv e-mails
server machine keeps searchable archive or past notes and subscriber list
online conference
in addition to listserv tools, may also include additional facilities
voting
online directories of users
online directories of documents
online magazines and newsletters
Web-logs/blogs and wikis
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Asynchronous distributed interfaces:
Different place, different time (cont.)
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Asynchronous distributed interfaces:
Different place, different time (cont.)
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Asynchronous distributed interfaces:
Different place, different time (cont.)
- Online and networked communities
Group identity
Patient support groups
Impact on offline communities
Community policies & freedom of speech
Network communities can be controversial
hackers
hate groups
para-military groups
Distance education courses
Reputation managers for online stores
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Asynchronous distributed interfaces:
Different place, different time (cont.)
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Bob’s ACL Kneeboard, a threaded discussion board for people who have suffered tears of the anterior cruciate ligaments in their knees. (http://factotem.org/cgi-bin/kneebbs.pl)
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Asynchronous distributed interfaces:
Different place, different time (cont.)
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Starting screen for a virtual classroom example from the
Los Angeles County Office of Education
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Asynchronous distributed interfaces:
Different place, different time (cont.)
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Visualization of the communication pattern of an “answer person” on the left, and a “discussion person” on the right (Welser et al).
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Synchronous distributed interfaces:
Different place, same time
- Synchronous distributed applications
group editing
shared screens for customer assistance
give demonstrations simultaneously at multiple sites
allow sharing of information for various applications
interactive games
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Synchronous distributed interfaces:
Different place, same time (cont.)
- Chat, instant messaging, and texting
CHAT, Internet Relay Chat (IRC), and TALK
Flamers
MUDs
Instant Messaging
LOL etc.
Texting and cell phones
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Synchronous distributed interfaces:
Different place, same time (cont.)
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Parental control system to oversee children’s online activities
(http://www.sentryparentalcontrols.com/)
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Synchronous distributed interfaces:
Different place, same time (cont.)
- Audio and video conferencing
videoconferencing
slow response times for entering and leaving session
distracting background audio
difficulty in determining who is speaking
inadequate lighting
difficulty in making eye contact
changed social status
small image size
potential invasion of privacy
need for convenient turn taking
need for document sharing
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Synchronous distributed interfaces:
Different place, same time (cont.)
- Audio and video conferencing (cont.)
issues of ownership and control
private and public workspaces
identity of participants
location of actions
care with updating
Whether audio or video conferencing is more appealing than chat, IM, and texting, or more effective than asynchronous text, depends on the goals and the task environment
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Face-to-face interfaces:
Same place, same time
- Innovative approaches to work and learning include:
Shared display from lecturer workstation
Audience response units
Text-submission workstations
Brainstorming, voting, and ranking. Benefits of electronic meeting systems:
Parallel communication promotes broader input into the meeting process and reduces the chance that a few people dominate the meeting.
Anonymity mitigates evaluation apprehension and conformance pressure, so that issues are discussed more candidly.
The group memory constructed by participants enables them to pause and reflect on information and opinions of others during the meeting and serves as a permanent record of what occurred.
Process structure helps focus the group on key issues and discourages irrelevant digressions and unproductive behaviors.
Task support and structure provides information and approaches to analyze it.
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Face-to-face interfaces:
Same place, same time (cont.)
File sharing
Shared workspace
Group activities
Colab and Liveboard
SMART Board
Public spaces facilitate sharing
Sharing photos is very popular
Notification systems
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Face-to-face interfaces:
Same place, same time (cont.)
- Electronic classrooms
Active individual learning experiences include using software during class time to:
Write essays in English or poems in a foreign language
Find antecedents of Impressionism in an art history library of 9000 images
Run business simulations to increase product quality
Perform psychological statistical analyses
Do landscaping with computer-assisted design and graphics packages
Compose computer programs and search the Internet
- Small teams and large teams
- Changes teaching style
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Face-to-face interfaces:
Same place, same time (cont.)
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Students in an online classroom. Activity is monitored by color: speech in yellow, hand
motion in red, body motion in green. Under each student is a timeline of their individual
activity and at the bottom is an activity picture (using the colors) of the class (Chen)
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Face-to-face interfaces:
Same place, same time (cont.)
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Modulor II is a time-dependent architectural work of art in which participants create
new patterns daily by collaboratively weaving colored strings
through an interactive labyrinth of luminous poles (Halkia and Local)
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Questions for consideration
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