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Historically, the primary use case driving the creation of lightweight formats has really been about collaboration, and probably the most simplistic type of collaboration at that: viewing of product data by a third party. Prior to moving to a 3D process, this was achieved by creating fully annotated, physical 2D drawings and shipping them whereever they needed to go. Today, several of the world's leading manufacturing companies are struggling right now as they attempt to shift their processes away from 2D drawings in favor of sending fully annotated digital 3D models throughout their supply chain and as more and more of the manufacturing industry follows their lead, they too will hit the same roadblocks. Sending source CAD data doesn't work because
And so many different ISVs independently tackled the problem of how to provide for free viewing of CAD data created with their tools and today you can choose from JT, 3DXML, DWF, eDrawings, XVL, and many more lightweight proprieary formats and their associated viewers. At first most of these formats were simple tessellated data organized in a node structure that mimicked the CAD assembly product structure. The key phrase here is 'at first' which brings us to the question of what changed along the way, which I will save for another time.
David Prawel, of Longview Advisors, and Bill Abramson did a terrific job bringing together experts from the manufacturing and software industries in an intimate setting that really enabled a lot of informal discussions interspersed between the various presentations and panels. I participated in a panel that examined whether or not the various lightweight formats are on a collision course with the various standards efforts and was joined by people from Siemens, Right Hemisphere, Lattice, NIST and PDES, Inc. To help prepare us for the panel, David Prawel asked us all to think about several topics prior to stimulate the thought process and as these things go, the conversation amongst the panelists that ensued hit some of the topics squarely, missed many completely and merely touched on others. I really think many of the questions he posed are relevant to the manufacturing industry and will pull from my notes and the conversations with the other panelists to post several blog entries in the near future in hopes of continuing the dialogue. So, stay tuned!
You can download the presentation here:
Acrobat_3D_V8_080523 (pdf, 1.2 Mg)