ICWM2009 > Arne Bachmann > Markus Kunde > Markus Litz > 05.05.2009 Slide 1 A dynamic data...

ICWM2009 > Arne Bachmann > Markus Kunde > Markus Litz > 05.05.2009

A dynamic data integration approach to build scientific workflow systems

Markus Kunde

Simulation and Software Technology

German Aerospace Center (DLR)

ICWM 2009, May 5th 2009


Slide 2

Overview

German Aerospace Center (DLR)

Challenge

Approach

Conclusion & Outlook


Slide 3

The DLRGerman Aerospace Research Center Space Agency of the Federal Republic of Germany


Slide 4

6,000 employees working in 29 research institutes and facilities

at 13 sites.

Offices in Brussels, Paris and Washington. Köln

Lampoldshausen

Stuttgart

Oberpfaffenhofen

Braunschweig

Göttingen

Berlin-

Bonn

Trauen

Hamburg

Neustrelitz

Weilheim

Bremen-

Sites and employees


Slide 5

Mission

To open up new dimensions for exploring the earth and the universe, for protecting the environment and for promoting mobility, communication and security:

Research portfolio ranging from basic research to innovative applications and the products of tomorrow

Operating large-scale research facilities for DLR’s own projects and as a service provider for its clients and partners

Promoting the next generation of scientists

Advisory services to government


Slide 6

Challenge

Preliminary design in aviation

Iterative development of aircraft

Duration: Minutes; Hours; Few days

Target: Complete aircraft or components

Pre-Design is an interdisciplinary task

Different domains (in our case: institutes/departments)

Problems

No omniscient person

Usage of “external” knowledge

Reuse of existing applications


Slide 7

Goal

Under development at DLR in the following aeronautics projects:

TIVA I/II Technology integration for the virtual aircraft

UCAV 2010 Unmanned combat air vehicle

EVITA Evaluation of innovative turbine engines

CATS Climate-compatible air transport system

… and more to come!

A DLR-wide system to enable the multi-disciplinary design and analysis of airplane configurations in the pre-design phase. A DLR-wide system to enable the multi-disciplinary design and analysis of airplane configurations in the pre-design phase.


Slide 8

Solution

Framework ModelCenter & AnalysisServer

Common Dataset CPACS

Supporting Libraries TIXI & TIGL

Wrapping Mechanism CPACSAccess


Slide 9

Common Dataset CPACSCommon Parametric Aircraft Configuration Scheme

Basis for all applications

XML

Hierarchical

Internal references

External references


Slide 10



XML

Hierarchical

Internal references

External references

Configuration

Vehicles

Aircraft

Model

Engines

Engine

EngineUID 3PW066


Slide 11



XML

Hierarchical

Internal references

External references

Configuration

Vehicles

Aircraft

Model

Engines

Engine

EngineUID 3PW066

Engines

uID=“3PW066” ExternalDATA


Slide 12

Mapping Mechanism CPACSAccess

Decoupling application from CPACS and framework

Changes in CPACS are not affecting applications

XML node mapping or XSLT


Slide 13






Slide 14





Toolwrapp

er


Slide 15

Server

ToolWrapper

ServerToolVersionDirectoryCommand…

Mapping

Decoupling

Reduced I/O Files

Application

Client


Slide 16

Framework - In reality


Slide 17

Framework - In reality

Easy creation of scientific workflows

Supporting GUIs

Easy insertion of applications

Reading/writing CPACS

Real-time monitoring of each application

…

Parametric studies with standard visualization techniques

Optimization of parameters


Slide 18

Conclusion

Framework ModelCenter & AnalysisServer

Common Dataset CPACS

Supporting Libraries TIXI & TIGL

Wrapping Mechanism CPACSAccess

AdvantagesUsage of external knowledgeEvaluation experts only need a fundamental understanding of each domainExisting applications can be easily addedNo need to share knowledge


Slide 19

Outlook

Integration in RCE (open source framework for distributed computations)http://www.rcenvironment.de

Data management with Datafinder (application for data management)http://datafinder.sourceforge.net

Provenance information for traceability of processes and data originhttp://www.uprovenance.com

STEP Integration for a standard data exchangeISO 10303

CPACS Development for more domains


Questions?

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