Presented By:
Chaudhari Yogesh V.

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“GROUP AWARENESS IN BLUETOOTH”
Outline
GROUPING
Grouping is a fundamental human cognitive
process affecting on group awareness.The cognitive. The aspects of grouping are called “Gestalt's law”.
E.g. similarities between location,distance and connection.
 Context Awareness
 Task,Goal,Usability
End user of the service has some goals when using a bluetooth service or device.
Usability of the service increases,when the amount of the task needed to goal lowers,and the tasks are more closely connected to the goals in terms of the end user.
TOWARDS GROUP AWARENESS
 Bluetooth specification descries where items and services work as a group,there is no clear way for user or end user to know:
1) Which service are to be shown
2) Which services are to be used
As a group.
GROUP MANAGEMENT
 Service discovery profile.
Bluetooth specification offers some tools to
Solve the problem of task /flow:
1. Bluetooth devices have unique identification number.
2. One bluetooth device may offer several services,that may be governed independently.
At this stage,the application’s group awareness must
be built to be application independent.
Ambient awareness.
 we want to enable ambient awareness support, which enables users to focus on goal-directed interactions in certain situational contexts and:
1) Minimize or eliminate required user attention for managing dynamic changes in the user's computing and communication environment and
2) Maximize use attention for and interaction with entities/resources/artifacts that are relevant to the user's goals and situational context.
SCENARIO
Figure 1 shows an example communication scenario with users A and B who carry several personal devices that interconnected in a Personal Area Network (PAN).
SERVICE AWARENESS
 Challenges of service awareness
Conclusion
1).Group management provided by the BTC does not provide group awareness to the end user.
2). Naming convention informative to end user(s) should be built.
3).Group management in bluetooth telephony does not necessarily provide for group awareness