Visual Workflow Composition through Semantic Orchestration of Web - - PowerPoint PPT Presentation

Visual Workflow Composition through Semantic Orchestration of Web Services

EUD4Services Workshop - Rome, May 25, 2010 Barbara R. Barricelli – barricelli@dico.unimi.it Piero Mussio – mussio@dico.unimi.it Marco Padula – padula@itc.cnr.it Antonio Piccinno - piccinno@di.uniba.it Paolo L. Scala – scala@itc.cnr.it Stefano Valtolina – valtolin@dico.unimi.it

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Outline

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Generalizzazione e conclusioni Introduction Proposed architecture Methodology Interaction process Conclusions

The TMS network

A novel network of software environments and a Web service-based architecture

• to support End-user Development activities1
• to support end users to exploit their knowledge end expertise
• design and check by visual composition

The TMS network allows end users to A workflow

Generalizzazione e conclusioni

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• design and check by visual composition
• visually validate the execution of
• execute

Workflow: a model to formalize a complex work process for further assessment and manipulation2

2: Graphic technology (2004) Database architecture model and control parameter coding for process control and workflow (Database AMPAC), ISO/TR 16044:2004

Introduction Proposed architecture Methodology Interaction process Conclusions

1: Costabile F. et. Al. (2006). End-user Development: The Software Shaping Workshop Approach. In Lieberman, H., Paternò, F., & Wulf, V. (Eds.): End-User Development, pp. 183-205. Dodrecht: Springer.

A workflow

The TMS network

The TMS network adresses two communities of end users Workflow designers Workflow operators

• Domain experts
• Belong to an organization
• No IT experts
• Practitioners
• Belong to the same organization
• f the Workflow Designer
• No IT experts

Profile

Generalizzazione e conclusioni

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• No IT experts
• Design the workflow
• Supervise its correct

execution

• Validate the workflow
• Execute it
• TMS editor
• TMS instance

Role Tool

Introduction Proposed architecture Methodology Interaction process Conclusions

The SSW methodology

a network of environments supporting the virtual team1

Generalizzazione e conclusioni

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1: Denning P. J. et al. (2010) Orchestrating Coordination in Pluralistic Networks. CACM 53(3):30-32

Introduction Proposed architecture Methodology Interaction process Conclusions

Design Level: overview of the TMS Editor

Generalizzazione e conclusioni

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Conclusions Introduction Proposed architecture Methodology Interaction process Conclusions

TMS Editor’s composition environment

* http://docs.oasis-open.org/wsbpel/2.0/OS/wsbpel-v2.0-OS.html

Generalizzazione e conclusioni

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Introduction Proposed architecture Methodology Interaction process Conclusions

TMS Editor – Workflow composition environment

• Composition Area

Task components WS-BPEL Activities

singleOutputManager multipleOutputManager singleInputManager

Load Save Verify Information Configure Search Workflow Composition Environment tComponents Composition Environment Switch working environment

tComponent

• utputManager

computationManager inputManager multipleInputManager

Generalizzazione e conclusioni

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Introduction Proposed architecture Methodology Interaction process Conclusions

• Composition Area

Task components

singleOutputManager multipleOutputManager singleInputManager formInstance

TMS Editor – Workflow composition environment WS-BPEL Activities Switch working environment Load Save Verify Information Configure Search Workflow Composition Environment tComponents Composition Environment

tComponent

• utputManager

computationManager inputManager multipleInputManager

Generalizzazione e conclusioni Generalizzazione e conclusioni

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Introduction Proposed architecture Methodology Interaction process Conclusions

• Composition Area

Task components

ngleInputManager formInstance

TMS Editor – Workflow composition environment WS-BPEL Activities Switch working environment Load Save Verify Information Configure Search Workflow Composition Environment tComponents Composition Environment

multipleInputManager utManager inputMan multipleInputManag singleIn

• utputManager

tComponent inputManager

• utputManager

multipleInputManager Name: formInstance Developed by: Paolo L. Scala Release date: 26-04-2010 Functionality: Input form management Usage field: Cement certification Modality: textual tComponent Description

Generalizzazione e conclusioni Generalizzazione e conclusioni Introduction Proposed architecture Methodology Interaction process Conclusions

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• Composition Area

Task components

ngleInputManager formInstance formInstance

TMS Editor – Workflow composition environment WS-BPEL Activities Switch working environment Load Save Verify Information Configure Search Workflow Composition Environment tComponents Composition Environment

multipleInputManager formInstance inputManager

Generalizzazione e conclusioni Generalizzazione e conclusioni Introduction Proposed architecture Methodology Interaction process Conclusions

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• Composition Area

Task components

singleOutputManager multipleOutputManager singleInputManager formInstance

TMS Editor – Workflow composition environment WS-BPEL Activities Switch working environment Load Save Verify Information Configure Search Workflow Composition Environment tComponents Composition Environment

tComponent

• utputManager

computationManager inputManager multipleInputManager

formInstance

Generalizzazione e conclusioni Generalizzazione e conclusioni Introduction Proposed architecture Methodology Interaction process Conclusions

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• utputManager

Composition Area inputManager

Task components

singleOutputManager multipleOutputManager singleInputManager multipleInputManager

TMS Editor – Workflow composition environment WS-BPEL Activities Switch working environment Load Save Verify Information Configure Search Workflow Composition Environment tComponents Composition Environment

tComponent computationManager inputManager computationInstance

formInstance

Generalizzazione e conclusioni Generalizzazione e conclusioni Introduction Proposed architecture Methodology Interaction process Conclusions

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• Composition Area

Task components

computationManager computationInstance formInstance

TMS Editor – Workflow composition environment WS-BPEL Activities Switch working environment Load Save Verify Information Configure Search Workflow Composition Environment tComponents Composition Environment tComponent inputManager

• utputManager

computationManager Name: computationInstance Developed by: Paolo L. Scala Release date: 26-04-2010 Functionality: Parameters calculation and evaluation for cement certification Usage field: Cement certification tComponent Description

formInstance

Generalizzazione e conclusioni Generalizzazione e conclusioni Introduction Proposed architecture Methodology Interaction process Conclusions

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• Composition Area

Task components

computationManager formInstance computationInstance

TMS Editor – Workflow composition environment WS-BPEL Activities Switch working environment Load Save Verify Information Configure Search Workflow Composition Environment tComponents Composition Environment

formInstance computationInstance

Generalizzazione e conclusioni Conclusions Introduction Proposed architecture Methodology Interaction process Conclusions

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• Composition Area

Task components WS-BPEL Activities

ForEach Structured activities formInstance

TMS Editor – Workflow composition environment Switch working environment Load Save Verify Information Configure Search Workflow Composition Environment tComponents Composition Environment

Activities Basic activities formInstance computationInstance

Generalizzazione e conclusioni Conclusions Introduction Proposed architecture Methodology Interaction process Conclusions

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• Composition Area

Task components

Sequence If While RepeatUntil Pick ForEach Structured activities formInstance

TMS Editor – Workflow composition environment WS-BPEL Activities Switch working environment Load Save Verify Information Configure Search Workflow Composition Environment tComponents Composition Environment

Pick Activities Basic activities Flow ForEach computationInstance formInstance

Generalizzazione e conclusioni Introduction Proposed architecture Methodology Interaction process Conclusions

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• Composition Area

Task components

Sequence If While RepeatUntil Pick ForEach formInstance

TMS Editor – Workflow composition environment WS-BPEL Activities Switch working environment Load Save Verify Information Configure Search

Structured activities

Workflow Composition Environment tComponents Composition Environment

Pick Activities Basic activities Flow ForEach computationInstance formInstance

Generalizzazione e conclusioni Introduction Proposed architecture Methodology Interaction process Conclusions

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• Composition Area

Task components

Sequence If While RepeatUntil Pick ForEach formInstance

TMS Editor – Workflow composition environment WS-BPEL Activities Switch working environment Load Save Verify Information Configure Search

Structured activities

Workflow Composition Environment tComponents Composition Environment

Pick Activities Basic activities Flow ForEach formInstance computationInstance

Generalizzazione e conclusioni Introduction Proposed architecture Methodology Interaction process Conclusions

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• Composition Area

Task components

Sequence If While RepeatUntil Pick formInstance

TMS Editor – Workflow composition environment WS-BPEL Activities Switch working environment Load Save Verify Information Configure Search

Structured activities

Workflow Composition Environment tComponents Composition Environment

Pick Flow ForEach Activities Basic activities formInstance computationInstance

Generalizzazione e conclusioni Introduction Proposed architecture Methodology Interaction process Conclusions

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Conclusions

• From practical experiences gained form the adoption of traditional software

development methodologies emerged1:

• the evidence of a common structure underlying TM activities
• the necessity of a uniform design which allows software reuse and

easy maintenance

• the network of software environments and the Web service-based

architecture to support End-User Development here presented are designed to face these problems

Generalizzazione e conclusioni Generalizzazione e conclusioni 9

designed to face these problems

• the TMS network is under development by an incremental prototyping

approach

Introduction Proposed architecture Methodology Interaction process Conclusions

1: Barricelli B., Mussio P., Padula M., Scala P.L. (to appear) TMS for Multimodal Information Processing. Multimedia Tools and Applications. An International Journal

Task Management System “a method [...] of managing a plurality of tasks to be carried out by a plurality of personnel, each of the tasks having identified task details relevant thereto”

Neil G. Miller in the US Patent n. 6.101.481 of August 8th, 2000

Activity Management System A software that manages the availability of network-centered applications within an organization, such as e-mail, intranets and client/server

tComponents Provider Registry

Generalizzazione e conclusioni Conclusions

tComponents’ organizing ontology