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
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.
Slide 3© Copyright 2000 — 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.
Slide 4© Copyright 2000 — 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.
Slide 5© Copyright 2000 — 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.
Slide 6© Copyright 2000 — 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.
Slide 7© Copyright 2000 — 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.
Slide 8© Copyright 2000 — 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.
Slide 9© Copyright 2000 — 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.
Slide 10© Copyright 2000 — 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.
Slide 11© Copyright 2000 — 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.
Slide 12© Copyright 2000 — 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.
Slide 13© Copyright 2000 — 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.
Slide 14© Copyright 2000 — 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.
Slide 15© Copyright 2000 — 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.