Process Re-engineering in the Healthcare Domain E. Kaldoudi, M. - - PowerPoint PPT Presentation

Agent-Based Workflow Processing for Functional Integration & Process Re-engineering in the Healthcare Domain

• E. Kaldoudi, M. Zikos,
• E. Leisch, and S.C. Orphanoudakis

Institute of Computer Science - FORTH and Department of Computer Science, University of Crete Heraklion, Crete, Greece

Institut itute of Computer puter Scie ienc nce - Fou

• unda

ndation

• n for Research and

d Techn hnol

• logy
• gy - Hell

llas

• utline
• motivation
• environment characteristics
• proposed architecture
• conclusions

Institut itute of Computer puter Scie ienc nce - Fou

• unda

ndation

• n for Research and

d Techn hnol

• logy
• gy - Hell

llas

next generation healthcare networks

• large number of information

systems

• heterogeneous autonomous

information systems

• knowledge-intensive applications
• large quantities of multimedia data

Institut itute of Computer puter Scie ienc nce - Fou

• unda

ndation

• n for Research and

d Techn hnol

• logy
• gy - Hell

llas

integration issues

• control
• data
• presentation
• function

RIS LIS PACS

without functional integration with functional integration

RIS LIS PACS

medical workstation

Institut itute of Computer puter Scie ienc nce - Fou

• unda

ndation

• n for Research and

d Techn hnol

• logy
• gy - Hell

llas

functional integration

description in terms of tasks, activities, processing entities execution supported by workflow middleware services

workflow based process automation & re-engineering

Institut itute of Computer puter Scie ienc nce - Fou

• unda

ndation

• n for Research and

d Techn hnol

• logy
• gy - Hell

llas

workflow management

build time

run time

workflow processing interactions

process definition process analysis, modeling & definition tools

Institut itute of Computer puter Scie ienc nce - Fou

• unda

ndation

• n for Research and

d Techn hnol

• logy
• gy - Hell

llas

confronting a dynamic environment

environment

• autonomous distributed modules
• heterogeneous infrastructure
• functionally expandable environment
• hierarchical virtual organizations

procedures

• dynamic predefined procedures
• ad hoc workflows
• work in disconnected networks
• interactions with other health-related organizations

Institut itute of Computer puter Scie ienc nce - Fou

• unda

ndation

• n for Research and

d Techn hnol

• logy
• gy - Hell

llas

system requirements

architecture

• modular and flexible architecture
• support technology and vendor diversity
• support evolution of technology and organizational structures
• expandable and scaleable architecture

procedures

• exception handling mechanisms
• support ad hoc workflows
• robust and persistent workflow processing
• conform to standards

Institut itute of Computer puter Scie ienc nce - Fou

• unda

ndation

• n for Research and

d Techn hnol

• logy
• gy - Hell

llas

WfMC workflow reference model

workflow enactment service workflow engine(s)

workflow API and interchange formats

process definition tools

administration & monitoring tools

• ther workflow

enactment services

workflow client applications invoked applications

IF 1 IF 2 IF 3 IF 4 IF 5

Institut itute of Computer puter Scie ienc nce - Fou

• unda

ndation

• n for Research and

d Techn hnol

• logy
• gy - Hell

llas

agent-based workflow processing

WOPE

WFM engine WFM engine

client application

WFM engine

IF 2 IF 4

manager

manager manager manager

• ther WF

enactment services

WFM engine

Institut itute of Computer puter Scie ienc nce - Fou

• unda

ndation

• n for Research and

d Techn hnol

• logy
• gy - Hell

llas

WfMC workflow reference model

workflow enactment service workflow engine(s)

workflow API and interchange formats

process definition tools

administration & monitoring tools

• ther workflow

enactment services

workflow client applications invoked applications

IF 1 IF 2 IF 3 IF 4 IF 5

Institut itute of Computer puter Scie ienc nce - Fou

• unda

ndation

• n for Research and

d Techn hnol

• logy
• gy - Hell

llas

agent-based workflow processing

WF engine

client application

resource agent resource agent resource agent resource agent

manager

IF 2 IF 2

WOPE

Institut itute of Computer puter Scie ienc nce - Fou

• unda

ndation

• n for Research and

d Techn hnol

• logy
• gy - Hell

llas

WOPE - resource agent

participant’s representative

– adds tasks to the participant’s worklist – monitors status of current processes – performs intermediate communication – estimates remaining execution time – calculates execution cost

data management

• status of cache
• data prefetching
• intelligent data delivery

resource monitoring

• information about local

participant

• current status of local

participant

Institut itute of Computer puter Scie ienc nce - Fou

• unda

ndation

• n for Research and

d Techn hnol

• logy
• gy - Hell

llas

WOPE - resource agent

manager WF engine

temporary storage

cache

resource agent

data manager resource manager data sources

workflow enactment service

worklist

worklist handler

user interface

invoked applications

IF 2 IF 3

Institut itute of Computer puter Scie ienc nce - Fou

• unda

ndation

• n for Research and

d Techn hnol

• logy
• gy - Hell

llas

WOPE - workflow enactment service

time constraints cost constraints predefined procedures cost data

workflow engine

schedule & monitor

activities

in an optimal way

events exceptions availability

• f resources

and specialists

Institut itute of Computer puter Scie ienc nce - Fou

• unda

ndation

• n for Research and

d Techn hnol

• logy
• gy - Hell

llas

resource allocation

bid

• performance of local resources
• current state of local resources
• task profile
• self-confidence
• agent’s policies

task assignment

• minimum cost
• minimum execution time
• reliability of bidder

manager

resource agent resource agent resource agent resource agent

estimated execution time and cost

Institut itute of Computer puter Scie ienc nce - Fou

• unda

ndation

• n for Research and

d Techn hnol

• logy
• gy - Hell

llas

WOPE - manager

participant’s directory

• local resources
• other managers

authentication

• user authentication
• manager authentication

workflow pool

• process definitions
• process logging &

accounting information

resource management

• bid evaluation
• charging

Institut itute of Computer puter Scie ienc nce - Fou

• unda

ndation

• n for Research and

d Techn hnol

• logy
• gy - Hell

llas

WOPE - manager

client application administration

• ther WF

enactment services

manager manager manager

process definition

IF 1

workflow pool

manager

participants directory

IF 2 IF 1 IF 4 IF 5

build-time components run-time interactions

Institut itute of Computer puter Scie ienc nce - Fou

• unda

ndation

• n for Research and

d Techn hnol

• logy
• gy - Hell

llas

current state of work

• agents

based on DIPE, an environment supporting image processing services

• interfaces

WfMC (IF1, IF2, IF4) - CORBA

• resource allocation

simulation experiments

• exception handling

intelligent agent-based mechanisms

• scripting

extend roles and policies of agents

Institut itute of Computer puter Scie ienc nce - Fou

• unda

ndation

• n for Research and

d Techn hnol

• logy
• gy - Hell

llas

conclusion

workflow enactment service workflow engine(s)

workflow API and interchange formats

process definition tools

administration & monitoring tools

• ther workflow

enactment services

workflow client applications invoked applications

IF 1 IF 2 IF 3 IF 4 IF 5

agent-based workflow processing for functional integration and process re-engineering

Institut itute of Computer puter Scie ienc nce - Fou

• unda

ndation

• n for Research and

d Techn hnol

• logy
• gy - Hell

llas

cite as

• E. Kaldoudi, M. Zikos, E. Leisch, and S.C. Orphanoudakis, “Agent-

Based Workflow Processing for Functional Integration and Process Re-engineering in the Health Care Domain”, Proceedings of EuroPACS’97, Pisa, Italy, September 25-27, 1997. (pp

• pp. 247-250)

250)