I think it's an interesting problem to solve (Sharing gis models/processes), but...
* Way too heavyweight for us, I don't have time/interest to build & maintain sheets of DXFs manually * Of little practical use for us since our processes typically grow pretty organically with small meetings and whiteboards/stickies, eventually we are going to stop maintaining these 'heavy' model diagrams. * Probably more useful for very large teams defining massive workflows with well-defined requirements/outputs, but I don't really work on those types of problems often (nor personally know many that really do anymore - and they'd probably already have some dialect of UML or ERM) * Can't easily convert those DXFs into GDB/DB schemas or into the processes themselves, etc, so hence little use at the tech level It might be more useful to define a simple standardized set of symbols that handles 80% of what we do, and then for more complex processes just lets you name it, treat them like blackboxes and just annotate them or something. Personally I would just probably use simple data flow & entity-relationship diagrams. If there was a simple system that modelled common spatial analysis processes via symbols then I might be interested in that. I'm skeptical on the real world utility of building/maintaining large sets of diagrams that A) Don't fit into the business process generation/capture processes and B) Don't easily convert into the actual code/schemas underlying. Perhaps figure out what the problem you're really trying to solve is. I.e. What am I trying to achieve via sharing models? - bri On Wed, Sep 9, 2009 at 9:48 AM, Landon Blake <[email protected]> wrote: > I posted a few weeks back I posted about possible ways to document and > share GIS data models. I decided to move forward with a graphical approach. > > > > I started building diagrams to document my GIS data model for the Public > Land Survey System in the United States. I am drawing these diagrams in a > CAD program. When I get things ironed out I hope to release the following > items to the GIS community: > > > > - My completed GIS data model in DXF format that can be used as > an example or template for other models. > > - A set of CAD “blocks” that can be used to build similar > diagrams. > > > > If I like how things come together with the diagrams, I might try > converting the diagrams to SVG. The diagrams would be much prettier in SVG, > but I am quicker with CAD than I am with Inkscape, and I want to get a > prototype completed quickly. > > > > This will make a lot more sense when you get to see the example diagrams. > > > > I welcome any collaboration on this effort. If there is interest, I could > move this discussion to the Standards mailing list. It would be great to get > input from interested parties now, while the diagrams are still taking > shape. > > > > Landon > > > > > *Warning: > *Information provided via electronic media is not guaranteed against > defects including translation and transmission errors. If the reader is > not the intended recipient, you are hereby notified that any dissemination, > distribution or copying of this communication is strictly prohibited. If you > have received this information in error, please notify the sender > immediately. > > _______________________________________________ > Discuss mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/discuss > >
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