ppt. on group disscusion

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Chapter 6: Group Communication
By:- Shivam Patel
(130210125086)

2. Group Communication
 Communication to a collection of processes – process group
 Group communication can be exploited to provide
 Simultaneous execution of the same operation in a group of
workstations
 Software installation in multiple workstations
 Consistent network table management
 Who needs group communication ?
 Highly available servers
 Conferencing
 Cluster management
 Distributed Logging….
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3. Unicast vs. Multicast
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sender receiver
One-to-one com m unication or unicast
Group com m unication or m ulticast

4. Multicast
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 Whereas the majority of network
services and network applications use
unicast for IPC, multicasting is useful for
applications such as:
online conferences, interactive distance
learning, and can be used for
applications such as online auction. It
can also be used in replication of
services for fault tolerance.

5. Mutlicast group
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 In an application or network service which makes
use of multicasting, a set of processes form a
group, called a multicast group. Each process
in a group can send and receive message. A
message sent by any process in the group can
be received by each participating process in the
group. A process may also choose to leave a
multicast group.
 In an application such as online conferencing, a
group of processes interoperate using
multicasting to exchange audio, video, and/or
text data.

6. GROUP DISCUSSION
Group discussions are widely
used in many organizations for
decision making and problem
solving.
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7. TWO CATEGORIES OF GROUP
DISCUSSION
Organizational Group Discussions
Group Discussions as a part of a
Selection Process
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8. ORGANIZATIONAL GROUP
DISCUSSIONS
 Brainstorming
 Nominal Group Technique
 Delphi Technique
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9. GROUP DISCUSSION AS A PART
OF SELECTION PROCESS
Group discussion have become an
integral part of most selection
processes today.
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10.  Characteristics of Group Discussion
 Evaluation Components
 Knowledge
 Communication skills
 Active Listening
 Clarity of Thought and Expression
 Apt Language
 Appropriateness of Body Language
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11. Group Behaviour
Leadership Skills
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Thank You