Transcript Presentation - Hong Kong University of Science and Technology

Hong Kong University of Science and Technology
Final Year Project 2002  2003 Oral Presentation
CHA1
Mobile Commerce
Digital Meeting Support System
Presented by
Hung Lau Yung, Simon
Ip Tak Shun, Alan
Siu Po Wa Power
Advised by
Prof. Samuel T. Chanson
Overview
 Introduction
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Motivation
Objectives
Background information
Problem encountered
 Results
– System Structures
– Communication Interfaces
– Digital Meeting Support System (DMSS)
 Conclusions
– Major achievement
– Future Extension
Introduction
 Motivation:
– Interest in building up Mobile device application
– Business demand
 Objective
– Implement a stable, secure, and efficient system
– support face to face & remote meeting
– Message exchange, slide show, text editing
 Background information
– Device: Pocket PC
– Languages: EVC++, JAVA
 Problem encountered
– Design Problem
(Platform, architecture, security, protocol , UI)
– Implementation Problem
(hardware, software)
Results – DMSS Infrastructure
Results – DMSS Internal Architecture
To MSS
To Document
Server
Shared
Text
Editor
Meeting
room
Syn. Slide
Viewer
To Document
Server
DMSS client program on PDA
Results - Communication Interface
Application request
Message from MSS
EVC++ Communication
Java Communication
Interface
Interface
 Reason for having two interfaces
 Functions of Two interfaces design
– Allow implement application programs with EVC++
– Allow communication between DMSS and servers
 Short interfaces communication time
– Less than 3 ms
 Easy to extend
– Separate application layer and network layer
Results - Meeting Room
 Functions:
– Exchange message
– Review message
history
 Other feature:
– Sound
Results - Shared Text Editor
 Purpose:
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to enable a group of user to view the same document
to allow user to modify the content
to allow highlighting of sentence
 Design:
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Document loading and saving
Direct editing
Copy, Paste, Cut and Undo
Synchronization
Highlighting
Results - Slide Viewer
 Show slides
 Draw on slide
 Set pen style
– Colour
– Thickness
– Line style
Results - Slide Viewer (cont’d)
 Synchronize Slide
– Slide
– Pen stroke
 Load Slide
– From Document Server
Presenter
Other users
Results – Document Loading
 Document Server
- Document submitter
- Conversion: Text -> XML and PPT -> JPEG
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Document Identifier
Download Text Document
Download Slides
Advantage of resizing by server:
- Faster resizing speed
- Speed up transmission time
- Cache available
Results - Group Management & Permission Control
 Group management
– Keep a member list
– Determine current chairperson,
slide presenter and text editor
 Permission Control
– Chairperson controls all
the permissions
– Synchronize text and slide
– Allows chairperson to kick
member
 Chairperson Centralized Design
– Centralize permission setting
– Easy implementation
Conclusion
 Major Achievement
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Integrated meeting system
Secure meeting environment
Save paper work
Encourage computerization in Office
 Future Extension
– Personal Area Network (PAN)
– Real time voice/video conferencing
 Q&A Session
– Please feel free to ask Questions.
PAN