1. STEP Tutorial Effective Exchange of STEP data January 16, 2001 ® PDES, Inc.

2. Copyright PDES, Inc. 2000 ® …..a little background: Experience with ‘homegrown’ translators ~1991 AeroSTEP with Boeing ~ 1994 PowerSTEP project ~1995 Turbine pilot with MTU and P&W 1995-99 current PDES pilot: Aerospace Engine Alliance STEPnet and CAX-IF test rallies

3. PDES, Inc. Copyright PDES, Inc. 2000 ® What constitutes effective STEP exchange? cheaper and faster than alternatives more efficient: ‘requires fewer people’ all inclusive data exchange, and satisfies customers request …from the management perspective

4. PDES, Inc. Copyright PDES, Inc. 2000 ® What constituents effective STEP exchange? quicker and more reliable than other means dependable: wisiwyg “what I sent is what you got” easy to use, consistent process no specialized training required satisfies customers’ request..and from a technical point of view

5. PDES, Inc. Copyright PDES, Inc. 2000 ® Effective STEP exchange “Expectations” STEP will: –handle solids and surfaces –multiple use parts and assemblies –subset of configuration (PDM) data –support colors/layers/valprops extensions Step doesn’t support: –parametrics, design features, or csg history –imbedded tolerances –prayer

6. PDES, Inc. Copyright PDES, Inc. 2000 ® Effective Step Exchange “the problem”

7. PDES, Inc. Copyright PDES, Inc. 2000 ® Effective Step Exchange “expectations” Today Low Step Problems High Time 70 - 75% Success 90 - 95% Success Add quality checking Incorporate Healing Tech Model Quality Accuracy

8. PDES, Inc. Copyright PDES, Inc. 2000 ® Effective STEP exchange “GIGO” “GIGO”

9. PDES, Inc. Copyright PDES, Inc. 2000 ® Effective STEP exchange “Ingredients” ‘bullet proof’ native model Sending system capability Receiving system capability identify customer requirements consistent procedure establish success criteria build Best Practices & Lessons Learned

10. PDES, Inc. Copyright PDES, Inc. 2000 ® Effective Step Exchange “High level Perspective” Native Model Create Target File Do Quality Checks Create Step File Check for Errors Documentation. Step Validate/heal Notify Sender & Recipient Archive Send STEP file

11. PDES, Inc. Copyright PDES, Inc. 2000 ® Effective Step Exchange “model correct” Native Model Create Target File Do Quality Checks Create Step File Check for Errors Documentation. Step Validate/heal Notify Sender & Recipient Archive Send STEP file Complete Model?

12. PDES, Inc. Copyright PDES, Inc. 2000 ® Effective Step Exchange “model correct”?

13. PDES, Inc. Copyright PDES, Inc. 2000 ® Effective Step Exchange “model correct”?

14. PDES, Inc. Copyright PDES, Inc. 2000 ® B-spline tolerances Effective Step Exchange “accuracy & tolerance” Native Model Create Target File Do Quality Checks Create Step File Check for Errors Documentation. Step Validate/heal Notify Sender & Recipient Archive Send STEP file Complete Model? Target system capabilities?

15. PDES, Inc. Copyright PDES, Inc. 2000 ® Effective Step Exchange “accuracy & tolerance” Acis0.000001in Unigraphics0.00001 mm Pro-E0.0012 in Cadds0.001 mm I-DEAS0.01 mm Catia0.1 mm

16. PDES, Inc. Copyright PDES, Inc. 2000 ® Effective STEP exchange “Accuracy Issues”

17. PDES, Inc. Copyright PDES, Inc. 2000 ® Effective STEP exchange “Corrective action”

18. PDES, Inc. Copyright PDES, Inc. 2000 ® Effective STEP exchange “Accuracy Issues”

19. PDES, Inc. Copyright PDES, Inc. 2000 ® Effective STEP exchange “Corrective action”

20. PDES, Inc. Copyright PDES, Inc. 2000 ® Effective Step Exchange “Model quality/Best Practices” Native Model Create Target File Do Quality Checks Create Step File Check for Errors Documentation. Step Best Practices & model quality Validate/heal Notify Sender & Recipient Archive Validation OK? Send STEP file Complete Model? To heal or not to heal.. Target system capabilities? Bspline tolerances

21. PDES, Inc. Copyright PDES, Inc. 2000 ® Effective STEP exchange “Model Quality checks”

22. PDES, Inc. Copyright PDES, Inc. 2000 ® Effective STEP exchange “Model Quality checks”

23. PDES, Inc. Copyright PDES, Inc. 2000 ® Effective STEP exchange “Model Quality checks”

24. PDES, Inc. Copyright PDES, Inc. 2000 ® Effective STEP exchange “Model Quality checks” Sliver Face in Bolt

25. PDES, Inc. Copyright PDES, Inc. 2000 ® Effective STEP exchange “Model Quality checks”

26. PDES, Inc. Copyright PDES, Inc. 2000 ® Effective STEP exchange “ Best Practices”

27. PDES, Inc. Copyright PDES, Inc. 2000 ® Effective STEP exchange “ Best Practices”

28. PDES, Inc. Copyright PDES, Inc. 2000 ® Effective STEP exchange “ Best Practices”

29. PDES, Inc. Copyright PDES, Inc. 2000 ® Effective STEP exchange “ Best Practices”

30. PDES, Inc. Copyright PDES, Inc. 2000 ® Effective Step Exchange “create STEP file” Native Model Create Target File Do Quality Checks Create Step File Check for Errors Documentation. Step Best Practices & model quality Validate/heal Notify Sender & Recipient Archive Send STEP file Complete Model? Log file look ok? Target system capabilities?

31. PDES, Inc. Copyright PDES, Inc. 2000 ® Effective STEP exchange “successful STEP file”

32. PDES, Inc. Copyright PDES, Inc. 2000 ® Effective Step Exchange “ready to send” Native Model Create Target File Do Quality Checks Create Step File Check for Errors Documentation. Step Best Practices & model quality Validate/heal Notify Sender & Recipient Archive Send STEP file Contents complete? Complete Model? Log file look ok? Target system capabilities?

33. PDES, Inc. Copyright PDES, Inc. 2000 ® Effective Step Exchange “ready to send” Most, if not all, vendors have 2nd or 3rd generation STEP translators in use Generally, all vendors have undertaken some form of ‘step file certification’ Tools to check step file structure, syntax, and semantics are used to ensure compliant STEP files are created participate in CAX Implementors forum

34. PDES, Inc. Copyright PDES, Inc. 2000 ® Effective Step Exchange “Validation & Healing” Native Model Create Target File Do Quality Checks Create Step File Check for Errors Documentation. Step Best Practices & model quality Validate/heal Notify Sender & Recipient Archive Validation OK? Send STEP file Contents complete? Complete Model? Log file look ok? To heal or not to heal.. Target system capabilities?

35. PDES, Inc. Copyright PDES, Inc. 2000 ® Effective STEP exchange “validated STEP file” Target system data Native system data

36. PDES, Inc. Copyright PDES, Inc. 2000 ® Effective STEP exchange “problem STEP file”

37. PDES, Inc. Copyright PDES, Inc. 2000 ® Effective STEP exchange …the problem ‘healed’

38. PDES, Inc. Copyright PDES, Inc. 2000 ® Effective Step Exchange “Problem Resolution Process” Native Model Create Target File Do Quality Checks Create Step File Check for Errors Documentation. Step Best Practices & model quality Validate/heal Notify Sender & Recipient Archive Validation OK? Send STEP file Contents complete? Complete Model? Log file look ok? To heal or not to heal.. Target system capabilities? Bspline tolerances Problem Resolution

39. PDES, Inc. Copyright PDES, Inc. 2000 ® Effective STEP Exchange Problem Resolution Prepare/Translate and make ready for Export CAD Model Output OK Model OK Send to Process Owner @ Target System Translate & Import to Target System Delighted/Customer A C D B E Problem Resolution team N Y Y N Native Model Problem IPT focal has responsibility for the data exchange of the Design/Product Definition (A) model passes validation checks

40. PDES, Inc. Copyright PDES, Inc. 2000 ® Effective Step Exchange PRP “Problem Resolution Process (PRP) Responsibility Center” Source Of Failure Identify Source of Failure Vendor part? Model Quality Issue Update Lessons Learned PR team Fixes Model C Software Problem DST/CSC/ UGS Work Solution Design Process Notify Process Owner Send to Vender for Correction & Notify IPT Notify IPT Of Problem yN n

41. PDES, Inc. Copyright PDES, Inc. 2000 ® Effective Step Exchange PRP Target System D Review Error message from Target System PR team Identifies Source of Error Who Owns Problem Model corrected or updated Is Target System a Customer Notify IPT & Discipline Manager Fix Process & update Lessons Learned DST N Y Target System fixes problem Work with customer to fix process UG - info/exam geometry CAD - IQ Theorem DXN Mass Property Data Other Tricks and resources Native System Design Systems Technology “Problem Resolution Process” DST

42. PDES, Inc. Copyright PDES, Inc. 2000 ® Effective Step Exchange “check list” Native Model Create Target File Do Quality Checks Create Step File Check for Errors Documentation. Step Best Practices & model quality Validate/heal Notify Sender & Recipient Archive Validation OK? Send STEP file Contents complete? Complete Model? Log file look ok? To heal or not to heal.. Target system capabilities? Bspline tolerances Problem Resolution

43. PDES, Inc. Copyright PDES, Inc. 2000 ® Effective STEP exchange “ coming soon” New Release of AP203: –Modular Extension architecture –includes colors and layers –imbedded validation properties In test with CAX Implementors: –enhanced validation properties –dimensional tolerances CSG, GD&T in development phase

44. PDES, Inc. Copyright PDES, Inc. 2000 ® Effective STEP exchange “ summary /recommendations” Current step exchange rate is >90% Incorporate Best Practices/model quality into your design practice; try www.caxif.org/bestprac/practice.html Quality checkers and Healing tools can improve STEP ‘successes’ Stay on top of your CAD vendor STEP translator development; practice regression testing on new releases Understand Native and Target system STEP capabilities