1. Framework for CAD/CAM/PDM Applications Java and all Java-based trademarks and logos are trademarks or registered trademarks of Sun Microsystems, Inc. in the United States and other countries. JSDAI is a trademark of LKSoftWare GmbH Lothar Klein LKSoftWare GmbH http://www.lksoft.com the Synergy of STEP and Java TM Technology

2. News from the Standardization ISO published ISO/TS 10303-27:2000 "Implementation methods: Java programming language binding to the standard data access interface with Internet/Intranet extensions"

3. Standard Data Access Interface (SDAI, ISO 10303-22) SDAI defined an Abstract Application Programming Interface (API) for EXPRESS defined data Programming Language bindings to C++ISO 10303-23 CISO 10303-24 Fortran (canceled)ISO 10303-25 IDL (on hold)ISO 10303-26 complete Java (TS)ISO 10303-27 lightweight Java (no activity)ISO 10303-29 Abstract Test Methods for SDAI Implementations (WD) ISO 10303-35

4. SDAI (Part 22+27)Extensions application data dictionary +map data SdaiSession RORW RO Opr external repo JSDAI-Server part21-files JSDAI- Applications 3D- Viewer PDM Bean... Reusable Software Component (Beans) 3D- JSDAI- Implementation JSDAI - JDBC Bridge SQL Database e.g. ORACLE STEP- Book... SdaiEdit

5. SdaiSession SdaiRepository SdaiModel EEntity owning_model(INV) instances servers S[1:?] ESchema_definition EEntity_definition parent_schema underlying_schema Core SDAI Structure ECartesian_pointEProduct... EAttribute SDAI_dictionary_schema jsdai.dictionary SDAI_session_schema jsdai.lang late binding early binding SchemaInstance associated_models S[0:?] An application schema native_schema (simplified)

6. Features of JSDAI unlimited number of SdaiRepositories, SdaiModels and SchemaInstances internet access to JSDAI-Server and JSDAI-SQL bridge transaction level 2 (commit, abort, underlying locking) JSDAI-Library based on EXPRESS short forms, includes almost all STEP & PLIB schemas (> 100) late binding for flexible schema support, based on full featured dictionary (meta data) early Binding for easy application programming ARM-AIM-Mapping Data + Mapping Operations Collaborative usage: SdaiEvent, -Source, -Listener 100% pure Java TM

7. Repo ARepo B Model A1, Schema X Model B1, Schema X SI AX, Schema XSI BX, Schema X Model A2, Schema X Model B1, Schema Y SI BY, Schema Y

8. Repository Model Entity Instance JSDAI-Client known_servers S[1:*] Persistent storage Extended SDAI with Network support Repository Model Entity Instance JSDAI-Server / JSDAI-SQL-Bridge Network connection

9. Requirements for STEP databases STEP data can be more efficiently stored in specialized files need to search for *some* kind of data; e.g. person, product, product_definition_formation (version), product_definition (sub-types) no need to search for e.g. detailed geometry don't blow up database tables with instances of types such as cartesian_point but *all* data must be integrated together merge/extract tools needed from/to exchange structures (STEP-File part21, STEP-XML part28)

10. STEP DataBase an ongoing project at LKSoft a fixed set of 21 SQL tables, suitable for any kind of EXPRESS defined data, including the cumbersome SELECTs, all kind of AGGREGATEs and "complex" instances Access through JDBC (= Java SQL API) support distributed populations over several databases/repositories Based on a "late binding architecture" Fully compatible with - STEP-file (part21) - SDAI (part22) - STEP-XML (part28)

11. Late binding database architecture all entity instances are in one table attributes are stored in separate tables all relations between entities are in one table: direct forward and inverse access also in the case of aggregates and selects some minimal set of dictionary information: single and complex entities, defined types explicit SDAI information SdaiModel, SchemaInstance, Repository preliminary specification in ISO TC184/SC4/WG11/N144 (too be published)

13. JSDAI-SQL-Bridge a middle-tier to link JSDAI clients with STEP-database accessing of all entity instances in one SdaiModel at a time entity instances without query requirements (e.g. geometry) can be stored in binary large objects (blob) on SdaiModel basis just Java JSDAI Client Rational Database JSDAI-SQL Bridge (under development)

14. Merging exchange structures into database Data, coming from STEP-File (part21) must be merged with data which is already in the data base merging data from different STEP schemas is supported through EXPRESS short forms data must be structured so that it can be extracted again into exchange structures. This can be done by some intelligent algorithm relating the individual instance to intended exchange structures grouping data according to SDAI in SdaiModel grouping SdaiModels to SchemaInstances

15. Merge Extract Products Versions Assignments Persons Database (integrated) Exchange structures (STEP-File, -XML) Product-X Version-1 Assignment Person-A Product-X Version-2 Assignment Person-A X 1 2 A Exchange IExchange II SchemaInstance-ISchemaInstance-II

16. 3D-Viewer Bean based on Java3D TM and IR42 (Geometry and topology)

17. Comparison of PCB data formats/models GERBER, HP-GL, DXF IPC- D350 ODB++, GenCAM EDIFSTEP- AP210 Functionality Evolution

18. AP210 activities Reference examples ap210_pcb1.stp, a single sided PCB ap210_pcb2.stp, a double sided PCB (under work) Converter GERBER => CircuitCAM => AP210 Development Tool SdaiEdit (AIM instances, ARM view) Viewer (editing later) STEP-Book AP210 GERBER-X export visit http://www.ap210.com

19. AP210 - Reference examples ap210_pcb1.stp (800 instances) ap210_pcb2.stp (under work, ~ 1050 instances)

20. ( GERBER=>) CircuitCAM => AP210 Converter A kind of re-engineering GERBER has much less information than AP210 requires Restricted to single and double sided PCB Requires very "good" GERBER/GERBER-X data - flashed pads - tracks drawn with one aperture - power planes as polygon (not filled) Further data preparations needed in CircuitCAM 90% of the work done, some connectivity information missing

21. example: tutor (~7800 instances)

22. example: tutorCPU (66 000 instances)

23. STEP-Book AP210 viewing AP210 data to end users intended to support any detail of AP210 2D and 3D PDM assembly, connectivity, different kind of views,... work for local data and for data in remote databases need more AP210 data for further testing basis for a CAM station for manufacturing export to GERBER link to CircuitCAM

28. SdaiEdit developer tool to view and edit STEP data on EXPRESS-level full support of SDAI concepts SdaiRepository, SdaiModel, SchemaInstance, Transaction walking through STEP data on AIM level walking through AIM-data on ARM level