Ce document est la propriété intellectuelle de DASSAULT AVIATION. Il ne peut être utilisé, reproduit, modifié ou communiqué sans son autorisation. DASSAULT

Ce document est la propriété intellectuelle de DASSAULT AVIATION. Il ne peut être utilisé, reproduit, modifié ou communiqué sans son autorisation. DASSAULT AVIATION Proprietary Data.

Long term Data preservation for PLM

The example of the Falcon 7X 's Digital Mockup

European Catia Forum

Jean Sass (CIO Dassault Aviation)

Max Fouache (IBM) Philippe Ebert (Dassault Aviation)

Emplacement du Bandeau

2Ce document est la propriété intellectuelle de DASSAULT AVIATION. Il ne peut être utilisé, reproduit, modifié ou communiqué sans son autorisation. DASSAULT AVIATION Proprietary Data.

European Catia Forum 17/11/2009

Agenda

• Dassault Aviation's context– PLM : history and perspective– Falcon 7X : what data to preserve ?

• Compliance with Regulatory Authorities• Challenge and answer to requirements• Conclusion



Ce document est la propriété intellectuelle de DASSAULT AVIATION. Il ne peut être utilisé, reproduit, modifié ou communiqué sans son autorisation. DASSAULT AVIATION Proprietary Data.

1990

Falcon2000and

Rafale

2000...

Falcon 7X

1980

Rafale

PLM History and Perspectives….



Business Issue : Comply with Regulatory Authorities

– No more drawings– Preserving information (and not only data (bits & bytes)) for 70 years– … Despite obsolescence : in IT the constant is… change !

• IT Infrastructure obsolescence : 5-10 years• PLM obsolescence : 10 years

– No universal standard :• Innovation versus standardization



To look forward 70 years later… Let us have a look 25 years before

IBM PC AT Diskette 5"1/4

Word 2Document

– Obsolescence• Hardware :

– Media lifetime– Drives (and drivers and OS…)

• Software : upward compatibility over time ???

– Native formats are specific to the authoring software and could be unreadable over time

– Partial coverage of standards (e.g. Document versus ASCII characters)



The 3 sizing factors

Retention duration

Complexity of informationto be preserved

Trusted integrity (at semantic level)

70 years

3D configured Data(un A/C = 40 000 parts, 300 000 fasteners)

Ensure Engineering evidence is kept for any possible litigation actions



2005 2015 2025 2035 2045 2055 •••

Release CAD native data

Migration 1of CAD native data





1 2 3 4 5

The question with no trusted answer

“How can I ensure there is no semantic alteration of information in my online PLM system for decades despite obsolescence and major migration of native data every 10 years ???”

Works led with other A/C manufacturers in LOTAR project can be used to get an answer based on Standards



2005 2015 2025 2035 2045 2055 •••

Release CAD native data






1 2 3 4 5

Conversion in open

standard format

1’

Using standards is the only way to decorrelate informations and applications



The 3 different steps for long term archiving

• Separate information and client authoring : native to neutral format translation with no semantic alteration– Use of standards despite the gap between functionalities and standardization– Specific developments are needed (but everything does not have to be preserved)

• There is NO WAY to translate and to preserve everything• But there are ways to translate what is necessary for certification process

– Standardization improvements are needed : LOTAR project (Long Term Archiving & Retrieval)

• Keeping bit and bytes for years with no binary alteration despite obsolescence and failures / disasters

• Retrieving bit and bytes and retrieving information (with no semantic alteration)



The 3 key points

1 - Being able to translate Information in native format to data in neutral format

- with no semantic alteration (despite bit and byte modification)

- with no loss of relevant information for certification process (despite gap between functionality and standards)

2 - Being able to preserve data for years with no binary alteration (despite obsolescence and in HW failures or disasters)

3 - Being able to retrieve data and to read information with no semantic alteration

2005 2015 2025 2035 2045 2055 •••

ReleaseCAD

nativedata

Migration 1of CAD

nativedata

Migration 2of CAD

nativedata

Migration 3of CAD

nativedata

Migration 4of CAD

nativedata

Migration 5of CAD nativedata

1 2 3 4 5

ReleaseCAD

nativedata

Migration 1of CAD

nativedata

Migration 2of CAD

nativedata

Migration 3of CAD

nativedata

Migration 4of CAD

nativedata

Migration 5of CAD nativedata

1 2 3 4 5

Conversion in open

standard format

1’

Audit



LTPSLong Term Preservation System

PLM

Overall solution

VPMBOM, configuration and geometrical 3D definition

of parts

Archival

APSArchive Preparation System

Native to neutralconversion

ESTELElectrical definition

FIXATIONS 2000Fasteners

ASAudit System

A/C #

Data check

Data read

3rd partyArchive digital footprint

Restitution

Archive digital footprint



Content of A/C archive

+ ~ 80 PSIP

Link

…1 IP Aircraft

+ 1 EIP

+ 1 FIP

+ ~ 40000 LTPIP

LinkLink

The Aircraft

Aircraft Definition

– List of components (files)– Footprint– Neutral data– APS's logs– Translators and tools that have been used to transform data (with version/release ) – Standards that have been used– Reference of documentation

THE ARCHIVE HAS TO BE AUTO DESCRIPTIVE



1 - Conversions with no semantic alteration Use of GVPs

ISO-10303-21;HEADER;FILE_DESCRIPTION((''), '1');FILE_NAME('F7XC535141301 --1 A 6 RL LIA 005 FRAME 41 ', '2006-10-25T10:04:46+02:00', (''), (''), 'CATIA.STEP INTERFACE', 'CATIA SOLUTIONS V4 RELEASE 2.4 FR 4.2.4', '');FILE_SCHEMA(('AUTOMOTIVE_DESIGN { 1 2 10303 214 0 1 1 1 }'));ENDSEC;

DATA;#1=APPLICATION_CONTEXT('automotive_design');#2=APPLICATION_PROTOCOL_DEFINITION('Draft International Standard','automotive_design',1997,#1);#3=PRODUCT_DEFINITION_CONTEXT(' ',#1,'part_definition');#4=PRODUCT_CONTEXT(' ',#1,'mechanical');#5=DIMENSIONAL_EXPONENTS(0.00000000000,0.00000000000,0.00000000000,0.00000000000,0.00000000000,0.00000000000,0.00000000000);#6=(LENGTH_UNIT()NAMED_UNIT(*)SI_UNIT(.MILLI.,.METRE.));#7=(NAMED_UNIT(*)PLANE_ANGLE_UNIT()SI_UNIT($,.RADIAN.));#8=PLANE_ANGLE_MEASURE_WITH_UNIT(PLANE_ANGLE_MEASURE(0.0174532925199),#7);#9=(CONVERSION_BASED_UNIT('DEGREE',#8)NAMED_UNIT(#5)PLANE_ANGLE_UNIT());#10=(NAMED_UNIT(*)SI_UNIT($,.STERADIAN.)SOLID_ANGLE_UNIT());

Catia V4

STEP File

Catia V5

0,00096863%4,04000E-034,17079E+024,17083E+02z

-0,01346299%-3,50000E-042,60007E+002,59972E+00y

0,00000034%6,00000E-051,77859E+041,77859E+04xCtre Gravité

0,00000000%0,00000E+002,13364E+062,13364E+06Surface

0,00000000%0,00000E+002,90555E+062,90555E+06Volume

%DeltaV5V4



1 – Conversion with no loss of significant data (feeling the gap between functionalities and standards)

Distribution of Airframe environment 3D entities(based on 31 509 CAD parts*)

20%

18%

26%

20%

16% 3D models with3D annotation

Mockup IsolatedModels

Solid mockupmodels

Electricalsmodels

Tubing models

* Composite and Fastners not included



Audit System

1 – First case : 3D annotations


DATA;#1=APPLICATION_CONTEXT('automotive_design');

Archive System

Step file

CATIA V4

CATIA V5

Viewer TIFF

STEP file

TIFF file

Online PLM IT System



Audit System

1 – Second Case : Tubing elements



ISO8859-15

Attribute

Online PLM IT System LTA System

Text file

STEP fileCATIA V4

CATIA V5

Viewer txt

Id LinkId Link

Pre-processing and STEP export



Audit System

1 – Third case : Composite elements



Archive System

CATIA V4 CATIA V5

Viewer TIFF

STEP file

TIFF file

Online PLM IT System



Preserve

SALT(Système d'Archivage Long Terme)

PLM(Product Life Cycle Management)

Authoring

Solution Overview

SFA(Système Fabrication des Archives)

Convert

SA(Système d'Audit)

Retrieve

Third Party

archiver



2 – Data preservation, without altering Binary stream

• IS / IT Technology obsolescence does not permit reliance on so called permanent hardware media

• The archiving solution infrastructure is therefore based on SW components– Management of media obsolescence and migration support without loss– Permanent control of integrity (scan & verify)– Logging of all activities as a proof of Archive integrity– Interface with a third party archiver for deposit of logs and hashes – …

• This SW Infrastructure requires:– Reversibility– Non mandatory to read the data– Compliancy with Standards such as OAIS model and NF 42013



Reference Model for Open Archival Information System" (ISO 14721) : basis for IBM DIAS solution

SIP = Submission Information PackageAIP = Archival Information PackageDIP = Dissemination Information Package

SIP

DescriptiveInfo.

AIP AIP DIP

Administration

PRODUCER

CONSUMER

queries

result sets

MANAGEMENT

Ingest Access

DataManagement

ArchivalStorage

DescriptiveInfo.

Preservation Planning

orders



IBM’s Digital Information Archiving System (DIAS PLM)

• DIAS PLM is an OAIS Compliant solution to store preserve and reuse PLM objects over a long period

• DIAS PLM is an “add on” to IBM’s content management solutions (Content Manager) with storage systems Nseries.

• In particular, DIAS PLM provides :– Long term data archiving and …

• Management of multiple copies• Management of WORM and Archiving policy / Expiry date• Identification of neutral data format used and check of description consistency• Storage of electronic signature (SHA/512 & Whirlpool), checking at injection, regular scanning

and audit• Automatic recovery from one site to the other of damaged objects• Storage evolution• Total reversibility (direct file access)



DIAS PLM

QueryInterface

ISIP IDIP

Delivery & Capture Packaging & Delivery

Security

CORE

AdministrationAdministration

Data ManagementData Management

Archival StorageArchival Storage

AdministrativeInterface

Authentication Authorisation

DIPSIP

AccessAccess

IngestIngest

Preservation Planning(Preservation Manager)

Preservation Planning(Preservation Manager)

Preservation ActionMigration Execution

Policy Execution

LogSIP

PreservationSIP

DIAS PLM

Product SIP

Audit / Log SIP

Preservation Manager SIP

Component SIP

Part SIP

Product SIP

Audit / Log SIP

Preservation Manager SIP

Component SIP

Part SIP

AIP



A consistent set of complementary components and capabilities that answer to the needs of long term data preservation, despite technology obsolescence

PLM/PDM

Archive construction Audit

Process

OAIS Audit OAIS

Archiving System

Databases and FilesPS3D

ECR ECO ECN

TaskTaskTask

…

Normalized Interfaces for Data and services (SIP)

IBM ECM (foundations)

Normalized Interfaces for Data and services (DIP)

Normalized Interfaces for Data and services

Storage ManagementIBM TSM Backup and Archive

Normalized Interfaces for storage management

Server DiskTape Hardware

Services

Software

Consulting

Design

Implement

Managed

Hosted

TSM Disk PoolsOnline; DR

WORM LT0-4, Robot; DR

Cloud

IBM PLM LTDP OAIS Asset

Disk



ConclusionThe Solution addresses needs from various

Industries It is based on Standards on which we are

promoting continued evolution It has been acknowledged by the relevant

authorities and it is replicable It allows to validate data migration procedures, as

dictated by application SW obsolescence



And after 70 Years ….



And after 70 Years ….

00101101001001100101

00111100101001001111

00110100101110101010

01100100100101001001

00101100101110011010

01011001011100110100

1010000101001001

??? Years ??? Years

bits information



Answers and perspectives based on IS/IT Standards…

AEP03010-USEN-00

Documents

Ce document est la propriété intellectuelle de DASSAULT AVIATION. Il ne peut être utilisé, reproduit, modifié ou communiqué sans son autorisation. DASSAULT