E-Government Integration with Web Services and Alerts: A Case Study on an Emergency Route Advisory...

e-Government Integration with Web Services and Alerts:

A Case Study on an Emergency Route Advisory System in Hong

Kong

Dickson K. W. CHIUSenior Member, IEEE

Dickson Computer [email protected],

[email protected]

Cherrie W.W. NG Dept. of Computer Science

Hong Kong University of Science & Technology

[email protected]

eGovt Integration HICSS39-2

Application Background Many public organizations and governmental departments

offering useful services over the Internet Increasing support of programmatic interfaces to these

resources through Web services Web services orchestration in e-Government processes

integration and services Case study: Emergency Route Advisory System (ERAS)

complexity and urgency requirements integrates information from disparate and heterogeneous

sources intelligent computations at the back-end integrates with the processes of the emergency call centers at

the front-end reuse of existing software design and components increasing demand of ambulance service in Hong Kong but

inadequate ambulances


Stakeholders of the Emergency Route Advisory System

Collect patient records Find shortest path to

venue

Find shortest path to venue

Provide basic information of the accidentInput the information

collectedProvides ambulance information

Provides traffic information

Provides traffic information

Provides hospital information, collect number of patient


Conceptual Model for Alerts in ERAS


Example Urgency Level Description

Urgency Level Description

Low General travel route information search.

Normal FSCC call (e.g., patients’ request)

Urgent emergency call center (e.g., traffic accident)


Conceptual Model for Transportation Network


Road Network Example and its Representations

Road1: Road Road2: Road Road3: Road

Stop1: Bus Stop2: Bus

Road4: Road Road5: Road

Road1: Road Road2: Road Road3: Road

J1: Junction J2: Junction

Road4:Road Road5: Road

J3: Junction J4: Junction

Road6: Road

H1: Hospital


Deployment Diagram of the Whole System

Alert Management System (AMS)

Emergency RouteAdvisory System (ERAS)

Route Advisory System (RAS)

Traffic Information

Agent

LocationAgent

SearchAgent

Route Information

Agent

Emergency Route Search

Agent

Admin Module

Routedatabase

Traffic/LocationKnowledge

Base Logdatabase

CallerAgent

Traffic / LocationKnowledge base

Alert Monitor

Traffic Information

Agent

Fire service

Police

Hospital

Emergency Vehicles

Call Center Process Management

Transportation Department

Public Transportation

route information Traffic condition

Civil Users


AMS Mechanism

Alert Management System (AMS)Outgoing Alerts

Outgoing Alert Responses

Incoming Alerts

Incoming Alert Responses

System Workflow and Application Logic

Create Alerts

Execute AlertsHandlers

Outgoing Alert Monitor

Role Matching Module

Service Provider Monitoring Module

Process / Alert Definition Module

Process Execution Module

Incoming Alert Monitor

Database


Typical life cycle of a route alert


Route Finding Algorithm Based on our HICSS38 paper on Route Advisory

System (RAS) Route-based Dijkstra’s algorithm (RD-algorithm) traveling time is used as the cost metric Heuristics

Search Area Limit Cost Bound Knowledge Based Finding


ERAS Enhancements

Add the traffic conditions for a more accurate estimation of the traveling time for civil use

Reuse the software modules from the ERAS and feed the traffic condition information directly from the Transport Department website

This will not affect the performance of the ERAS and helps scale up

RAS can also serve as a backup system in case of disastrous break down of the ERAS


User request under authorization policy system

Document presentation

User request

XML instance generator

Session management module

Access control module

XML schemas

and instances

XML instance base

XML presentation details

12

3

4

5


Workflow of Emergency Call Center


Advantages of ERAS

Improve the integration and automation of the current emergency call centers for the provision of quality services effectively and efficiently

Increases the efficiency of the ambulance call service and helps the tightly staffed emergency call centers through process automation

Reuse existing design and software (AMS, RAS, etc.)

Web Services technology provides the underlying open platform for integration


AMS Advantages

Handles urgent and error-prone conditions and possible exception cases

Mediates variety of parties and personnel to liaise with

Automates the required communications and integrates the processes to minimize the delay and costs involved in inefficient manual calls and retry calls

Keeps track and monitors alerts Captures the knowledge and experiences of the

call center staff


Future Work

Detailed performance evaluation of the system Compare the service response time to the

existing practice Effects of the tuning parameters inside the

ERAS order processing and turnaround time How detail heuristics could be best formulated Use questionnaires to evaluate the satisfaction

of various stakeholders Simulations for the scalability and robustness


Question and Answer

Thank you!

E-Government Integration with Web Services and Alerts: A Case Study on an Emergency Route Advisory...

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