CHA1CHA1Mobile CommerceMobile Commerce

Digital Meeting Support SystemDigital Meeting Support System 

Presented by

Hung Lau Yung, SimonIp Tak Shun, AlanSiu Po Wa Power

Advised by

Prof. Samuel T. ChansonProf. Samuel T. Chanson

Hong Kong University of Science and Technology

Final Year Project 2002 2003 Oral Presentation

OverviewOverview Introduction

– Motivation– Objectives– Background information– Problem encountered

Results– System Structures– Communication Interfaces– Digital Meeting Support System (DMSS)

Conclusions– Major achievement– Future Extension

IntroductionIntroduction 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 Results – DMSS Infrastructure– DMSS Infrastructure

Results Results – DMSS Internal Architecture– DMSS Internal Architecture

Shared Text Editor Meeting

roomSyn. Slide

Viewer

To Document Server

To Document Server

To MSS

DMSS client program on PDA

Results Results - Communication Interface- Communication 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

EVC++ Communication

Interface

Java Communication

Interface

Application request

Message from MSS

Results Results - Meeting Room- Meeting Room

Functions:– Exchange message– Review message

history

Other feature:– Sound

Results Results - Shared Text Editor- Shared Text Editor

Purpose:– to enable a group of user to view the same document– to allow user to modify the content– to allow highlighting of sentence

Design:– Document loading and saving– Direct editing– Copy, Paste, Cut and Undo– Synchronization– Highlighting

Results Results - Slide Viewer- Slide Viewer

Show slides Draw on slide Set pen style

– Colour – Thickness– Line style

Results Results - Slide Viewer - Slide Viewer (cont’d)(cont’d)

Synchronize Slide– Slide– Pen stroke

Load Slide– From Document Server

Presenter Other users

Results Results – Document Loading– Document Loading

Document Server- Document submitter

- Conversion: Text -> XML and PPT -> JPEG Document Identifier Download Text Document Download Slides Advantage of resizing by server:

- Faster resizing speed- Speed up transmission time- Cache available

Results Results - - Group Management & Permission ControlGroup 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

ConclusionConclusion Major Achievement

– 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