2008-04-13 copyright lksoftware gmbh 2008 1 about step a rough overview on iso 10303 lothar klein,...

2008-04-13 Copyright LKSoftWare GmbH 2008 1

About STEP

A rough overview on ISO 10303

Lothar Klein,

LKSoftWare GmbH

This work is done as part of the European funded DEPUIS project within the EUROPE INNOVA program


Memorandum of Understanding (MoU) on e-Business Standards

Working Together for InteroperabilityThe four global de jure bodies

The International Electrotechnical Commission (IEC)• http://www.iec.ch

The International Organization for Standardization (ISO)

• http://www.iso.org

The International Telecommunication Union (ITU)• http://www.itu.int

The United Nations Economic Commission for Europe (UN/ECE)

• http://www.unece.org/cefact


ISO Technical Committes

ISO – International Organization of Standardization• TC 184 - Industrial automation systems and integration

• SC 4 - Industrial Data• WG2 - Parts Library (PLIB = ISO 13584)• WG3 - Product Modelling( STEP APs, Oil and Gas = ISO 15926)• JWG8 - Industrial Manufacturing Management Data (ISO 15531)• WG11 - EXPRESS Language Implementation (STEP part 1x-3x)

Methods, and Conformance Methods• WG12 - SC4 Common Resources (STEP part 4x,5x,1xx,5xx,1xxx)

• National representatione.g. DIN / NAM in Germany or BSI in UK

2008-04-13 Copyright LKSoftWare GmbH 2008 42005-01-31 Copyright LKSoftWare GmbH, 2005 4


What is STEP?(Taken from ISO 10303-1 Introduction)

ISO 10303 is an International Standard for the computer-interpretable representation of product information and for the exchange of product data.

The objective is to provide a neutral mechanism capable of describing products throughout their life cycle. This mechanism is suitable not only for neutral file exchange, but also as a basis for implementing and sharing product databases, and as a basis for archiving.





=> Not a company standard like DOC, DXF, XLS





=> The contents of HTML, Word, of PDF is not computer-interpretable



ISO 10303 is an International Standard for the computer-interpretable representation of product information and for the exchange of product data. The objective is to provide a neutral mechanism capable of describing products throughout their life cycle. This mechanism is suitable not only for neutral file exchange, but also as a basis for implementing and sharing product databases, and as a basis for archiving. => STEP is not dealing with non-product related information (medical science, strategy, laws ...) but ...?



ISO 10303 is an International Standard for the computer-interpretable representation of product information and for the exchange of product data. The objective is to provide a neutral mechanism capable of describing products throughout their life cycle. This mechanism is suitable not only for neutral file exchange, but also as a basis for implementing and sharing product databases, and as a basis for archiving. => File-formats

• Not vendor neutral: .doc, .xls, .mpp ... • Vendor neutral: .stp, .html, .xml (?)



ISO 10303 is an International Standard for the computer-interpretable representation of product information and for the exchange of product data. The objective is to provide a neutral mechanism capable of describing products throughout their life cycle. This mechanism is suitable not only for neutral file exchange, but also as a basis for implementing and sharing product databases, and as a basis for archiving. => Life cycle phases: requirment, early design, detailed design, manufacturing, manufacturing planing, maintenance, re-configuration, disposal.





=> Building up STEP databases on the basis of STEP data models.





=> Long term archiving is a major usage of STEP


A few basic ISO 10303 parts

• Data Modelling Language• ISO 10303-11 EXPRESS (ASCII) • and EXPRESS-G (graphical)

• Generic Data Models• ISO 10303-41 Fundamentals of product description and support

• Application Specific Data Models• ISO 10303-214 Core data for automotive mechanical design

processes,STEP-AP 214 (Application Protocol)

• Implementation methods• ISO 10303-21 Clear text encoding of the exchange structure

(STEP-File)• ISO 10303-28 XML representations of EXPRESS schema and

data (STEP-XML)


Example: EXPRESS fromIntegrated Resource: ISO 10303-41


Example: EXPRESS fromApplication Protocol: ISO 10303-214


Example: STEP Data Model in EXPRESS-G


Example: STEP-File

ISO-10303-21;HEADER; FILE_DESCRIPTION(('STEP File written by Smaragd'),'2;1'); FILE_NAME('ecA4000030000_stp', '2001-03-27T17:28:17',(''),('DaimlerChrysler AG'), 'Smaragd Preprocessor Version 2.3','Metaphase/Smaragd',''); FILE_SCHEMA(('AUTOMOTIVE_DESIGN'));ENDSEC;DATA;#10=PRODUCT_RELATED_PRODUCT_CATEGORY('part',$,(#70, #90,#100,#110));#40=ORGANIZATION('/NULL','Daimler Chrysler',$);#50=ORGANIZATION_ROLE('id owner');#60=APPLIED_ORGANIZATION_ASSIGNMENT(#40,#50,(#70, #90,#100,#110));#70=PRODUCT('A4000030000', 'Traction','',(...));#90=PRODUCT('A4000003001', 'Gear','‚...));#100=PRODUCT('A4000002401', 'Engine','‚...));#110=PRODUCT('A4000002101', 'Wheel','‚...));...


Example: STEP-XML


A few basic ISO 10303 parts

• Data Modelling Language• ISO 10303-11 EXPRESS (ASCII) • and EXPRESS-G (graphical)

• Generic Data Models• ISO 10303-41 Fundamentals of product description and support

• Application Specific Data Models• ISO 10303-214 Core data for automotive mechanical design

processes,STEP-AP 214 (Application Protocol)

• Implementation methods• ISO 10303-21 Clear text encoding of the exchange structure

(STEP-File)• ISO 10303-28 XML representations of EXPRESS schema and

data (STEP-XML)


STEP Standard - ISO 10303History overview

• 1984: Start of the development of STEP as a sucessor of IGES, VDAFS, SET

• 1994: The first parts of STEP were published as International Standard• AP203: Config Controlled 3D Design

• 2001: IS-version of• AP210: Electronic assembly, interconnect and packaging

design• AP212: Electrotechnical design and installation• AP214: Automotive Design

• 2004 ... 2008: Modular APs• AP239: PLCS - Product Life Cycle Support• AP203ed2, AP210ed2, AP236: Furniture ...• AP233: System Engineering and design


1984 1994 2004

Methods

Resources

APs

Modules

Usage

Express, STEP-File SDAI STEP-XML Binary Data

Geometry, Generic – PDM Tolerances, Kinematic, Math, ...

201/203...202...209/210/212/214...239/233/240...

ISO TC184/SC4 Development-Activities

CAD PDM CAx Integration


Structure of STEP

• 10,20,30 seriesDescription and implementation methods (EXPRESS, STEP-File, -XML, SDAI, UML mapping, conformance tests ...)

• 40, 100 seriesIntegrated Resources (product, structure, geometry, ...)

• 500 seriesApplication integrated resources (Common specializations of integrated resources)

• 200 seriesApplication Protocols, some 20

• 400 and 1000 seriesModules (new)


Integrated Resources (1/2)

• p41 Fundamentals of product description and support• p44 Product structure configuration• p43 Representation structures• p42 Geometric and topological representation• p47 Shape variation tolerances• p59 Quality of product shape data• p46 Visual Presentation• p101 Draughting• p45 Materials• p49 Process structure and properties• p50 Mathematical constructs• p51 Mathematical representation


Integrated Resources (2/2)

• p54 Classification and set theory• p56 State• p58 Risk• p104 Finite element analysis• p107 Finite element analysis definition relationships • p105 Kinematics• p109 Kinematic and geometric constraints for assembly models• p55 Procedural and hybrid representation• p108 Parameterization and constraints for explicit geometric

product models• p111 Construction History Features• p112 2D Standard Modeling Commands for the Procedural

Parametric Exchange


ARM – MIM mapping with Magic Strings

ARM: Application Reference Model

AIM / MIM: Application / Modular Integrated Model

ISO/TS 10303-1022:2004 Part and version identification

5.1.1 Part

MIM element: product

Source: ISO 10303-41

Reference path:

{product <-

product_related_product_category.products[i]

product_related_product_category <=

product_category

(product_category.name='part')

(product_category.name='raw material')}

25


ISO 10303 APsApplikations-Protokolle (1/2)

General, Mechanical 2D, 3D

Part 201: Explicit draughting (einfache 2D Zeichnungen)

Part 202: Associative draughting (2D-Zeichnungen mit Bezug zu 3D-Modellen)

Part 203: Configuration controlled design (3D-Design)

Part 204: Mechanical design using boundary representation

Part 207: Sheet metal die planning and design

Part 214: Core data for automotive mechanical design processes

Manufacturing:

Part 223: Cast Parts

Part 224: Mechanical product definition for process planning using machining features

Part 229: Forged partPart 236: Furniture product data and project data

Part 238: Application interpreted model for computer numeric controllers

Part 240: Process plans for machined products

Ship:

Part 215: Ship arrangement

Part 216: Ship moulded forms

Part 218: Ship structures


Electrical/ElectronicsPart 210: Electronic assembly, interconnection, and packaging designPart 212: Electrotechnical design and installation

(cable harness, energy distribution, ... designed together with AP214)

Simulation and MaterialsPart 209: Composite and metallic structural analysis and related designPart 235: Materials information for the design and verification of productsPart 237: Fluid dynamics (AWI)

Facilities / MaintenancePart 221: Functional data and their schematic representation for process plants Part 225: Building elements using explicit shape representationPart 227: Plant spatial configuration Part 239: Product life cycle support Part 241, AEC maintenance (planned)

OthersPart 232: Technical data packaging core information and exchangePart 233: Systems engineering data representation

ISO 10303 APsApplikations-Protokolle (2/2)


Application modules ISO 10303-4xx and 1xxx (>500)


Conformance testing methodology and framework

• ISO 10303-31:1994 General concepts • ISO 10303-32:1998 Requirements on testing laboratories and clients • ISO 10303-34:2001 Abstract test methods for application protocol

implementations • ISO/TS 10303-35:2003 Abstract test methods for SDAI

implementations • ISO 10303-3xx Abstract Test Suite (ATS2xx) for AP2xx

ATS 302, 307, 325, 332 (withdrawn 303, 312, 314)• In general this area didn’t work out as expected.

• Originally conformance tests for all parts of STEP should have been available.

• Complexity problem, methods not optimal, too expensive• This might be possible with modules

• ATS documents got somehow replaced by Recommended Practises documents and Validation Reports


Information units and views in STEP

Original paper from Julian Fowler (PDT Solutions / UK), 1996

• the STEP Integrated Resources comprise a single model for product data,

• this model is based on an underlying framework - the "Generic Product Data Model", and

• the model supports product data applications (Application Protocols) through different, specific usages of generic constructs


The main"Information units"

of the STEP Integrated Resources


Product and product_context

AP214-example

#1=APPLICATION_CONTEXT('mechanical design');

#3=PRODUCT_CONTEXT('',#1,'mechanical');

#8=PRODUCT('A4000030000', 'Traction',$,(#3));


Identifying formation for products

Identification, description and inter-relationships among different versions, revision, variants, or configurations of products


Identifying configurations for products

AP214-example

#8=PRODUCT('A4000030000','Antrieb',$,(#3));

#11=PRODUCT_DEFINITION_FORMATION('Alpha','',#8);

#12=PRODUCT_DEFINITION_FORMATION('Beta','',#8);

#13=PRODUCT_DEFINITION_FORMATION _RELATIONSHIP('', 'sequence',$,#11,#12);


Three ways of thinking about products

• how the product is classified or categorized• how the product is presented to the market• the technical description of the product for the purpose of

design, engineering, manufacturing, operations, maintenance, etc.


Categorization of products

Note: Product category is no longer used for general classification of a product but only to provide general categories such as Part, Document, Product_as_individual, Chemical Substance, etc.

Classification and _assignment is used to say that a product is a car or a chair or a …


Categorization of products

AP214-example

#8=PRODUCT('A4000030000','Antrieb',$,(#3));

#21=PRODUCT_CATEGORY('detailed_part',$) ;#22=PRODUCT_RELATED_PRODUCT_CATEGORY

('part',$,(#8,#34,#108));#23=PRODUCT_CATEGORY_RELATIONSHIP

('hierarchy',$,#21,#22);


Presenting products to the market


Differentiating different different life-cycle and

discipline "views"


AP214-example

#8=PRODUCT('A4000030000', 'Traction',$,(#3)); #11=PRODUCT_DEFINITION_FORMATION('Alpha','',#8);

#31=PRODUCT_DEFINITION('',$,#11,#32);#32=PRODUCT_DEFINITION_CONTEXT(

'part definition',#1,'design');#83=NEXT_ASSEMBLY_USAGE_OCCURRENCE(

'0000029','single instance usage',$,#31,#92,$);

#90=PRODUCT('A4000033333', 'front axes',$,(#3)); #91=PRODUCT_DEFINITION_FORMATION('1','',#90);#92=PRODUCT_DEFINITION('',$,#91,#22);


Identifying properties and relating them to views


Collecting data for properties


Usage of the application_context_schema

basis for capturing "meta-data" for a given Application Protocol


Usage of the application_context_schema

AP214-example:

#1=APPLICATION_PROTOCOL_DEFINITION('INTERNATIONAL STANDARD','automotive_design',2001,#2);

#2=APPLICATION_CONTEXT('mechanical design');

#3=PRODUCT_CONTEXT('',#2,'mechanical');

#12=PRODUCT_DEFINITION_CONTEXT('part definition',#2,'design');


End

• www.wikistep.org• http://www.tc184-sc4.org/• ISO 10303 standards are for sale only

• expensive if you want to buy all parts• Hope in future we can buy all about ISO

10303 on a single CD / DVD• or get it even for free via the Internet• Having modules as a database standard

(ISO 10303-1000) may be a step in this direction

http://www.wikistep.org/



http://www.tc184-sc4.org/

2008-04-13 copyright lksoftware gmbh 2008 1 about step a rough overview on iso 10303 lothar klein,...

Documents

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introduction iso

exchange of product

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product databases

international standard

computerinterpretable

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