1. AP Projects. The following is the status of the AP projects. a. AP-219 Inspection Data and Results No work performed on this project since the last meeting due to funding problems. The plan is for work to recommence in July and for the CD document to be completed by the fourth quarter. b. AP-223 Castings No work performed on this project since the last meeting because the editor was working on AP-240. Work will recommence shortly and the CD document should be ready in the fourth quarter. The project is trying to determine how much forging information should be included in the AP and will welcome feedback from end-users. c. AP-224 Edition 3 and AIC 522 Manufacturing Features AIC 522 is being updated to include definitions for gears and requirements from AP-238 to clarify the volume of a feature when it is being used to define material removal volume. AP-224 Edition 3 should be published in the third quarter. The AP-224 team gave a presentation on the winning business case they presented to the UK Navy for deploying AP-224 in the shipyard. The business case showed how short term savings can be achieved by reducing inventory for parts with an AP-224 description. d. AP-238 Integrated CNC A working draft of the AP-238 DIS was published just before the meeting. The new document includes both milling and turning. The ARM requirements for PDM have been documented. The differences between the AP-224 features and the ISO 14649 features have been documented. Both sets of documentation have been broken out into a separate specification available on the STEP Tools web site. Two remaining items need to be completed before the DIS is sent out for review. The first is the inclusion of the GD&T definitions. A lot of time was spent during the meeting to harmonize the AP-224 GD&T definitions with the AP-214 definitions (see below). The harmonized definitions will be included in AP-238. The second item is the inclusion of any updates necessary to fully support the usage of explicitly defined tool paths in AP-238. Some potential requirements have been identified by the early users and STEP Tools will work with these users to refine and document them in the DIS. e. AP-240 Process Planning AP-240 successfully completed its ballot resolution workshop in Japan. Work will begin on the IS version. The plan is to submit the IS in the fourth quarter. A Process Planning demonstration using AP-240 was given by the Japanese delegation. The demonstration showed how AP-240 can be used to plan which features will be manufactured on which machines in a manufacturing enterprise. 2. ISO 14649 Projects A final IS release of the ISO 14649-11 model for milling should be issued by ISO in Geneva shortly. The DIS version of the ISO 14649-12 model for turning is currently out for ballot. The SC1/Wg7 team responsible for ISO 14649 and STEP Manufacturing agreed on a path forward for STEP-NC harmonization as documented in Section 4 of these minutes. A new model for inspection processes has been developed by WZL in Germany and will be presented to SC1/Wg7 in Zurich at their next meeting from September 14 to 16. 3. GD&T Harmonization This issue is very important because the community wants the CAD vendors to start exporting GD&T information with their CAD models using STEP. The vendors have reasonably objected that different AP's are using different definitions for their GD&T information so the harmonization of these definitions was an important goal for the whole of SC4 in the Bath meeting. Almost half the time of T24 in Bath was spent on this issue. The meeting appears to have been successful. At the end of the meeting there was one remaining issue that needed to be reviewed by the larger AP-214 team before it could be accepted by their representatives. The next step is to develop test cases for presentation at the next SC4 meeting in Seattle. 4. STEP-NC Harmonization The SC1 team argues that ISO 14649 is simpler to implement and perhaps more efficient to execute (strongly disputed by T24). The T24 team argues that AP-238 is integrated with the rest of STEP. In particular it uses the same feature definitions, the same GD&T definitions, the same PDM definitions and the same process definitions. Fortunately there is also general agreement that the new CNC exchange format needs to be XML instead of Part 21, and the increased power of XML means that the AP-238 data can be simplified to be more like ISO 14649 data. STEP Tools showed a new tool at the meeting called XDM STEP that converts ISO 14649 data to AP-238 data automatically using meta data derived from the STEP mapping tables. The new tool outputs an XML format that shows how each ISO 14649 object is represented in the AP-238 AIM XML. There was agreement that provided the new format is fully documented by SC4 and provided some changes are made to some of the AP-238 mappings to make them clearer, then SC1 will adopt the new AIM XML format as the CNC data exchange standard. The changes to the mappings were agreed in a special session hosted by Wg12. To make the mappings clearer the action_method_relationship entity will be sub-typed and the new sub-types will be used to make the required type of the "relating" and "related" entity in each relationship clearer. STEP Tools is making the XDM STEP tool available to anyone with interest free of charge. 5. Cutting Tool Catalogs and Machining Databases The TC29 ISO 13399 standard for cutting tooling catalogs is making considerable progress. AP-238 and AP-240 reference these catalogs. A new project is starting within SC1 to define a standard for machining tools. 6. SASIG Digital Manufacturing The SASIG Digital Manufacturing team met with T24 to discuss new technical and business opportunities. The team is defining a mission statement and wants to harvest the results of T24's work. The group welcomes input from potential technical contributors and business users.