1
|
- Week 12
- LBSC 690
- Information Technology
|
2
|
- Questions
- Computer mediated communications
- Computer-supported cooperative work
- Educational computing
- Project testing
|
3
|
- CMC refers to human communication via computers--including computer
network communication on the Internet and the World Wide Web. People
interested in CMC study a range of phenomena--from the dynamics of g=
roup
communication in Usenet news articles to how people use hypertext to
shape meaning.
|
4
|
- How many participants?
- When?
- Synchronous or asynchronous
- Where?
|
5
|
|
6
|
- Asynchronous and distributed
- A great start for Internet communication
- Available even beyond the Internet
- Many email providers
- AOL, MSN, Yahoo, universities
- Mailing lists provide simple way to talk to many people at once
|
7
|
- Asynchronous and distributed
- USENET are similar to a large set of mailing lists
- Hierarchical organization
- Most general appears first (comp., soc., alt. …)
- Most specific appears last (comp.edu.languages.natural)
- Google groups keeps all the news
- Bulletin Board Systems are Web extension
- Not through emails, but web pages
- More popular than USENET now
- An example: http://www.bianca.com/
|
8
|
- Go to http://discus.hope.edu/f03/
- Pick up a board to read
- Describe how it is organized
- Powered by discusware at http://www.discusware.com/
|
9
|
- Many ways to organize messages
- Chronologically
- Same sender
- Same receiver
- Threads provides another way
- under the same subject, in the same topic
- Easy to retrieve a set of topic related messages
|
10
|
- Synchronous and distributed
- “talk” on UNIX in old days
- Popular for similarity to human talking
- A common space shows dialogue history
- Both people can type at the same time
- Must has a screen name
- e.g., atouchofwind
- both sides have to use the same provider
|
11
|
- Synchronous and distributed
- Like IM, but with lots more people
- Same thing as a chat room on AOL
- Whole lines are sent at a time
- Each line is labeled with the sender’s screenname
- Still not allowed in open labs at UMD?
- Yahoo chat: http://chat.yahoo.com/
|
12
|
- The idea of real-time communication between pairs or groups over the
internet or intranet using audio, video and data communication.
- Also refers to Microsoft software
- Popular in corporations
- Especially in economic downturns
|
13
|
- Glass wall at PARC
- Facilitates unplanned interactions
- Supports informal communications
|
14
|
- Open a browser
- Go to http://products.figleaf.com/
- Login with a screen name
- Click “draw” if it is available
- Draw a circle or add things
- Click “release” once you are down
- Another example: Coccinella: http://hem.fyristorg.com/matben/
|
15
|
- Synchronous and Local
- Support face to face communication
- Meeting support systems
- Brainstorming
- Online review
- Annotated minutes
- Example
- Multichat, one minute paper
|
16
|
- Also known as “groupware”
- Work
- Grounded in the study of work processes
- Cooperative
- Assumes a shared objective, task
- Information technology supported
- Computers are just one type of tools used
|
17
|
- Combined, integrated technologies
- Communication and coordination within the group,
- Main challenges are from social, not technical or economic
|
18
|
- group awareness,
- multi-user interfaces,
- concurrency control,
- communication and coordination within the group,
- shared information space and
- the support of a heterogenous, open environment
|
19
|
- Reference and virtual reference
- Is virtual reference CSCW?
- What are the required functions of virtual reference systems?
|
20
|
- Pros and cons of using each CMC techniques in virtual reference?
|
21
|
- What about your project team coordination?
- Face to face meetings
- What about other means of CMC?
|
22
|
- Computer Assisted Education
- What most people think of first
- Computer Managed Instruction
- What most people really do first!
- Computer Mediated Communication
- All that CSCW stuff applied to education
- Computer-Based Multimedia
- Just another filmstrip machine?
|
23
|
- Pedagogic
- Vocational
- Computer programming is a skill like typing
- Social
- Computers are a part of the fabric of society
- Catalytic
- Computers are symbols of progress
|
24
|
- Most prerequisites are not computer-specific
- Need, know-how, time, commitment, leadership, incentives, expectati=
ons
- In one study, only one addressed resources
- The most important barrier isn’t either
- Teacher time is by far the most important factor
|
25
|
- Facilities
- Computer classrooms (e.g., teaching theaters)
- Computers IN classrooms (e.g., HBK 3108)
- Objectives
- “Computer Literacy” is the most common class
- Not so in the Maryland teaching theaters
- Comparatively few technology classes
|
26
|
- What are the most salient characteristics
|
27
|
- Correspondence courses came first
- Focus on dissemination and evaluation
- Instructional television was next
- Dissemination, interaction, and evaluation
- Ordinary television supports only dissemination
- Computer Assisted Instruction
- Same three functions
- Goal is to be better, cheaper, or both
|
28
|
- What we gain from distance education?
- What we lose from distance education?
|
29
|
- Course Management System
- CT stands for Course Tools
- Integrated set of education tools for
- Facilitating learning, communications
- Organizing course and admin materials
- Face-to-face to online distance learning
|
30
|
|
31
|
- Review:
- Informal colleague review
- Formal expert review
- Usability testing
- Study the usefulness of the system
- Informal or formal
- Survey
- Clear goal first, then focused items next
|
32
|
- Two key issues
- Test types
- Sampling strategies
- Black box tests
- Assumes no knowledge of the design
- For example, test every link on every page
- Glass box tests
- Use design knowledge to test likely failures
- For example, run queries that exercise joins
|
33
|
- Systematic tests
- Broad tests
- Web page example: test every link from the top page
- Database example: Run each query once
- Deep tests
- Web page example: follow a full sequence of links
- Database example: Run a query with different data
- Ad hoc tests
- Specify how users are selected, give them a task
|
34
|
- Test often
- During the development stage
- After completion
- Select the right tester
|