STEP Tools, Inc. 216 River Street / Troy, New York Voice: (518) / Fax: (518) The STEP ISO Standard Dr. David Loffredo VP 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. Enterprises Aerospatial Boeing British Aerospace EDF ESA Ford General Dynamics General Electric General Motors Hitachi Zosen IBM Lockheed Martin NASA Newport News Peugot Raytheon Samsung Toyota CAD Vendors SGI Alias, Bentley, Unigraphics, CADKEY, Cimatron, HZS, Entity Systems (Alibre), Intergraph CAE Vendors Tecnomatix, Deneb PDM Vendors IMAN, Boeing DCAC/MRM (Metaphase) CAM Vendors Bridgeport 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 P44P42, 43 Product Definition Formation (version) Product N 1 N 1 Each Product Definition describes a particular view of the product (mechanical, thermal, electrical, etc.) STEP Product Information Application Protocols give the context! Application Protocols give 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, Interconnect and Packaging Design

STEP Tools, Inc. Slide 11© Copyright 2000 — STEP Tools, Inc. ARM Information requirements usually described in EXPRESS. Also an activity model that sets the scope. AIM Information implementation always described in EXPRESS. Common library of definitions. Mapping that encodes the ARM in the AIM. Described as tables or using EXPRESS-X. Model is different for each AP Model is same for each AP Part 21 Data exchange file Part 22 Database Need to know to understand Used by systems at 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 Here: Available in most CAD/CAM systems In Process: Available in some CAD/CAM systems being tested in others In Pipeline:Specification being finalized by ISO Here In Process In Pipeline AP-203 AP-214, PDM Schema AP-227, AP-224, AP-209 ISO 14649, AP-210 AP-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.