CSCW & Groupware

Computer Supported Cooperative Work

440 Autumn 2008

Background

• CSCW grew from discontent with single user HCI methods applied to multi-user technologies and settings

• Focus on– Workplace activity– Understanding nature of collaborative tasks– Co-evolution of technologies and communities

• Early apps – CAD, computer integrated manufacturing, computer

aided software engineering, office automation

What is CSCW?

• Work is a social activity– People and their activities are integral to

design of technology

• Workers may have social proximity despite physical/temporal distance.– The water cooler effect.

CSCW focuses on people working with others

Community

Organization

Project teams

Small groups

Individuals

traditional HCICSCW HCI

Related Fields

• Behavioural Science– Social psychology– Organizational science– Anthropology– Sociology

• Computer Science– Distributed computing– Networking– User interface/visualization– Mobile & wireless

• Telecommunications– Telephony– video

Related methodsInvolve users!

• User Centered Design– Focus on user at the interface

• Management Studies– Focus on decision making

• Contextual Analysis and Design– Interviews in work settings

• Participatory Design– Have the user be a designer

• Anthropology/Ethnography– Long term study of groups/organizations

Face to Face communication

• Personal Space• Eye contact and gaze

– Can convey interest, confusion, boredom

• Gestures and body language• Back channels, confirmation, interruption

– Back channels = nods, shrugs, small noises

• Turn Taking– Ums, ahs, pauses

• What happens when these channels are unavailable?

Communication

CoordinationFace to Face

Information

Communication

Coordination

Information

Computer mediated interaction

Face to Face vs CMI

Beyond Being There

• What are some advantages of computer mediated collaboration over face to face?

Dimensions of Cooperation

Same Place Different Place

Same

TimeSynchronous

Local

Synchronous

Remote

Different

TimeAsynchronous

Local

Asynchronous

Remote

Time

Location

What are some examples of applications in these areas?

Dimensions of Cooperation

Same Place Different Place

Same

TimeFace to Face conversation

Telephone

Different

TimePost-it note Letter

Time

Location

What are some examples of applications in these areas?

Same Different

Same Meeting rooms Video Conference

Video wall

IM

Shared work surfaces and editors

Shared PCs and windows

Different Augmentation tools

-”Where were you?”

Email

Electronic conferences

Co-authoring systems

Shared calendars

Time

Location

Where would google documents fit?

Questions

• When is a text better than a phone call?

• What is the difference between IM and Email?

Activity Spectrum

Awareness

Shared Experience

Social Activities

Informal Interactions

Locating Colleagues

Office Sharing

Meetings

Focused work tasks

Loosely coupled activity

Highly interactive activity

The Awareness Orb

Organizational Issues

• Who benefits?

• Free rider problem

• Critical mass

• Changing power structures

Benefits of use

Cost of use

Number of usersCritical Mass

Organizational Issues

• Reciprocity / Symmetry– If you do work for a system, you should get

some benefit

• Fitting in with organizational structure and values

• Flexibility• Cost

– Setup– Maintenance

Granularity

Update

Frequent Infrequent

Large

Small

Chunk size

Network system with locking

Shared editor

Groupware systems

• Email

• Videoconferencing

• Lotus Notes

• Bulletin Boards

• Google Documents

• …

Email

• Where does it fit?

• Why is it successful? Where has it failed?

Same Different

Same Synchronous

Local

Synchronous

Remote

Different Asynchronous

Local

Asynchronous

Remote

Time

Place/Space

Videoconferencing

• Where does it fit?

• Why isn’t it more popular?

Same Different

Same Synchronous

Local

Synchronous

Remote

Different Asynchronous

Local

Asynchronous

Remote

Time

Place/Space

Videoconferencing

• What are the difficulties?• How has it failed?• How has it succeeded?

• How could it be improved?– Clearboard/Teamworkstation (Ishii et al)– VideoWhiteboard (Tang et al)

ClearBoard

MultiView

Pebbles / Remote Commander

DiamondTouch

CSCW Topics

• Social Tagging

• Concurrent Editing

• Displays

• Social Networks

• Privacy

• Wikis