step tools, inc. 216 river street / troy, new york 12180 voice: (518) 687-2848 / fax: (518) 276-4420...

STEP Tools, Inc.216 River Street / Troy, New York 12180

Voice: (518) 687-2848 / Fax: (518) [email protected]

http://www.steptools.com

The STEPISO Standard

Dr. David LoffredoVP Product Development

http://www.steptools.com/



STEP Tools, Inc.

Slide 2© Copyright 2000 — STEP Tools, Inc.

What is the Problem?

• Product Process Management (PPM) is most expensive but least automated function of large engineering companies

– Must include the supply chain

– Poor communication, often just drawings or FAX’s

• Incompatibilities among computer systems, applications, and data formats used to create and store engineering information

– Difficult exchange and sharing

– Leads to data re-entry

– Leads to decreased quality / increased turnaround time

– Barrier to Internet / e-Manufacturing

STEP Tools, Inc.


With CAM and CAE systems following

There are now more than one million STEP enabled CAD stations in the world

STEP Data Exchange

STEP Tools, Inc.


What is STEP

• An International Standard for technical data about products including

– Geometry and topology

– Assembly and configuration information

– Manufacturing attributes

• Move to STEP initiated by CAD users in US, Far East and Europe in 1984

– More interoperability in design and manufacturing

– Independence from CAD vendors

– Reduce costs for supply chain

• Two hundred of the worlds best product data specialists meeting three times per year to progress the standard for the past fifteen years.

STEP Tools, Inc.


Who we are

• Software tools to make implementing and using the STEP ISO standard easy.

• Forerunners in STEP technology since 1991

– Founders working on product data since 1978

– First commercial software tool kit

– First solid model data exchange using STEP

– First STEP Repository

• Contributors to STEP and STEP-NC meetings

– Owner of Parts 14, 21, and 24 of STEP

– Owner of Parts 3 and 51 of STEP-NC

• 300+ customers use our tools to define and implement STEP and STEP-NC

STEP Tools, Inc.


EnterprisesAerospatialBoeingBritish AerospaceEDFESAFordGeneral DynamicsGeneral ElectricGeneral MotorsHitachi ZosenIBMLockheed MartinNASANewport NewsPeugotRaytheonSamsungToyota

CAD VendorsSGI Alias, Bentley, Unigraphics, CADKEY, Cimatron, HZS, Entity Systems (Alibre), Intergraph

CAE VendorsTecnomatix, Deneb

PDM Vendors IMAN, Boeing DCAC/MRM (Metaphase)

CAM VendorsBridgeport Controls, DelCAM, Licom, Fanuc Robotics

Some Customers

STEP Tools, Inc.


Property Definition(s)(including shape)

Administrivia(who did what)

Product Categories(inheritance hierarchies)

Product Structure(including assembly)

P41

P41

P41

P44P42, 43

Product Definition

Product DefinitionFormation (version)

Product

N

1

N

1

Each Product Definitiondescribes a particular viewof the product (mechanical,

thermal, electrical, etc.)

STEP Product Information

Application Protocolsgive the context!

Application Protocolsgive the context!

STEP Tools, Inc.


AP-203:

Configuration Management• Authorization• Control(Version/Revision)• Effectivity• Release Status• Security Classification• Supplier

Geometric Shapes• Advanced BREP Solids• Faceted BREP Solids• Manifold Surfaces with Topology• Wireframe with Topology• Surfaces and Wireframe without Topology

Specifications• Surface Finish• Material• Design• Process• CAD Filename

Product Structure• Assemblies• Bill of Materials• Part• Substitute Part• Alternate Part

Configuration Controlled 3D Designs of Mechanical Parts and Assemblies

STEP Tools, Inc.


AP-227: Plant Spatial Configuration

Plant Layout

• Location of plant-items• Site Description• Change Control

Functional/Analysis

• Interference• Performance Requirements• Requirement Satisfaction

Plant Systems

• Line Definitions• Composition• Capabilities• Component Connectivity

Plant Item

• Type• Connections• Functional/Physical• Definition/Occurrence

Shape

• Explicit Shape• Brep• CSG

STEP Tools, Inc.


AP-210:

Technology

Physical

Geometry

• Component Placement• Bare Board Geometry• Layout items• Layers non-planar, conductive & non-conductive• Material product

• Geometrically Bounded 2-D Shape• Wireframe with Topology • Advanced BREP Solids • Constructive Solid Geometry

Part• Functionality• Termination • Shape 2D, 3D • Single Level Decomposition• Material Product• Characteristics

Configuration Mgmt• Identification• Authority • Effectivity • Control• RequirementTraceability• Analytical Model• Document References

Product Structure/Connectivity

• Functional• Packaged

• Fabrication Design Rules• Product Design Rules

Requirements• Design• Allocation• Constraints• Interface

Electronic Assembly, Interconnectand Packaging Design

STEP Tools, Inc.


ARM Information requirements usually describedin EXPRESS. Also an activity model that setsthe scope.

AIMInformation implementation always describedin EXPRESS. Common library of definitions.

Mapping that encodes the ARM in the AIM.Described as tables or using EXPRESS-X.

Model is differentfor each AP

Model is samefor each AP

Part 21

Data exchange file

Part 22

Database

Need to knowto understand

Used by systemsat run time

MAP

Application Protocols

STEP Tools, Inc.


Other Parts of STEP

• Definition Infrastructure– Part 11: EXPRESS Language describes information models.

– Part 14: EXPRESS-X Language describes views and queries.

• Common Library of Definitions– Part 40’s: Common definitions for product structure, geometry,

topology, dates, approvals, presentation, etc.

– APs reference these definitions and give additional context.

• Implementation Infrastructure– Part 21: Exchange file format for communicating data sets

defined by an EXPRESS schema.

– Parts 22-29: APIs for working with EXPRESS-defined data in languages like C, C++, Java, XML.

STEP Tools, Inc.


Solid Model Geometry

Mechanical Assemblies

Life Cycle Control

Features & Tolerances

Drawing and Presentation

Electrical Assemblies

AEC Assemblies

Numerical Control

Machine Resources

1998 2000 2010

Here: Available in most CAD/CAM systemsIn Process: Available in some CAD/CAM systems being tested in othersIn Pipeline: Specification being finalized by ISO

Her

eIn

Pro

cess

InP

ipe

lin

e

AP-203

AP-214, PDM SchemaAP-227, AP-224, AP-209

ISO 14649, AP-210AP-212, AP-225

Road Map

STEP Tools, Inc.


Project Histories

• Mechanical Design - AP-203/214/224– NIIIP, SMART, STEP-NC, MDICM, AM3 (Funding = $7.3m)

– Proved out geometry models, translators, AP-203 in every MCAD system.

• Process Plant / Shipbuilding - AP-227– SHIIP, SPARS, ISEC, WSME (Funding = $2m)

– Proving out product configuration models, large scale databases, viewers, AP-227 translators in progress for most process plant systems.

• Electrical - AP-210/212– PreAmp, more are needed. (Funding = $50k)

– Must prove out multi-discipline model, link between design requirement and physical model.

– No commercial implementations.

STEP Tools, Inc.


Conclusion

• STEP is a success in MCAD and process plant.– Strong support from industry projects brought results.

– Vendors followed with commercial translators.

• The ECAD systems cannot ignore geometry.

• The MCAD systems cannot ignore connectivity.

• This program can prove out the AP-210 model and create viewers and databases to bring success in electrical domain.

step tools, inc. 216 river street / troy, new york 12180 voice: (518) 687-2848 / fax: (518) 276-4420...

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