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Issue #287: 19 March, 2002


Inside this Issue

 


Encrypting Drawings - or Not
By Martyn Day

A recent survey by Autodesk asked users questions regarding "improving the security surrounding your .dwdg files." With the Internet making data easily distributable, data security is an important issue on the minds of CAD managers. At Daratech, I asked Carl Bass, Autodesk vp of design solutions, about password protection and encryption. Mr Bass explained users are asking for some way to protect the intellectual data that's held within their .dwg files. An early solution from Autodesk was .dwf [drawing Web format], a Web-friendly vector format. Its major problem is that it doesn't print to scale, and users can't get enough data out of it.
        At the other end, encryption programs, like PGP, seem to me messy to use, creating a lot of hassle especially in the decryption process.
        The easiest method to ensure your data is not intercepted is to never send the original. Options include DWF, HPGL, raster (CALS, TIF, and so on).
        Products like AutoVue, ViewCafe, and Brava! provide secure data distribution of project information over networks and the Web via Java. The AutoVue product, for example, allows you to view xrefs, blocks, attributes, and layer information, as well as measure and print, without the original data leaving the firewall.
        There are encryption and password programs freely available from http://www.downloads.com. In this case, the encryption process is at your discretion and is not reliant on the CAD vendor's program being present. Some users are asking for protection to be built into the CAD program, however, to make the protection process seamless. In asking for this, users should consider these issues:

PTC has been encrypting its drawings files for the last few releases. The company had been evasive on admitting its Pro/E native format was encrypted, opting to use words like 'protected', 'binary,' and 'compressed' -- flatly denying 'encryption.' I asked then-cto Jon Stevenson why PTC did it: "We had a strong desire to license fully-loaded seats of Pro/E to students ... The files had to be different enough that in no way could you write a utility that would turn [a student] file into [a full Pro/E file], and that's why we encrypted the file." PTC has subsequently released a 'free' CAD package call Pro/Desktop that also uses the encrypted format.
        So far, PTC is the only CAD vendor to use encryption. PTC has told me that it's had no complaints from its customers. It is worth noting, however, that the competition was putting the heat on PTC, with players like SolidWorks introducing direct Pro/E translators, and actively chasing PTC's installed base.
        Another result of encrypting the files is that downstream users and customers of data would really need purchase Pro/E licenses, or else resort to lowest common-denominator formats, like IGES and STEP.
        The net result of this is that the data translator firms (Theorem, Delcam, TTF and so on) have put in a great effort in cracking the encryption algorithm. All offer on-line translation for a price. TTF now offers a Pro/E translator component to CAD developers, like SolidWorks, so they can read in files directly again.
        And thus the cycle starts over, in an industry that has proven itself incompetent in passing basic geometry from one to another, let alone wrapping the data in an encryption algorithm.

The decision whether or not to encrypt data is the moral prerogative of the customer, not the software vendor. The data created by a CAD package belongs to the author, and should not be encrypted without your express permission or knowledge.
        Asking a vendor to put encryption within an authoring tool is dangerous; it increases reliance on the vendor, and may hinder migration to the next generation of systems. While you may be concerned in protecting information from your competitors, the CAD developers have concerns that conflict with yours, such as maintaining and growing market share. This means holding on to customers.
        We already have a data interoperability problem. Easing data flow between systems, and removing customer reliance on legacy data are not necessarily in the interests of the CAD vendors. Instead of AUGI begging Autodesk for built-in encryption, take time to investigate your own data security arrangements, such as CADlock <http://www.cadlock.com>. Ask the CAD developers to get their own products working together as promised There's still plenty of work to be done.

(P.S: I highly recommend Simon Singh's "The Code Book" <>.)

 Martyn Day is Group Editor of 'CADD,' 'CADdesk,' and 'cadserver' Web site in the UK. http://www.cadserver.co.uk

 


Vendors Respond:

One-dimensional Collaboration

The response to last week's editorial on CAD vendors rushing to add collaboration utilities to their software resulted in responses primarily from vendors -- an indication perhaps that users have little interest in this "advance."

"I really liked your comments on collaboration technology and the overuse of the term 'collaboration.' And I must admit these days a vendor has a tough time to really differentiate verbally. Customers have an even tougher time in the marketing jungle of messages that seem similar.  
        "About 4-5 years ago we tried to name collaboration 'co-creation.' Michael Schrage of MIT <http://www.webcom.com/quantera/schrage.html> wrote a book that explained the change in teamworking in the years to come. We decided that some of his principles and the teamwork we had in our existing products would be the future for product development. We therefore named our company 'CoCreate' - perhaps better explained as 'Together Creative.'
        "You rightly point out that the key to successful collaboration lays in an openess to other systems, experts, and information. I admit to my customers that we are not market leader in CAD in all areas, and therefore CAN be, and MUST be open to other systems. We developed a range of technological tools that helps designers bi-directionally work with other CAD systems or data systems -- not single input or partial read-in.
        "Today we have small button in our OneSpace Designer Dynamic Modeling (SolidDesigner's new name) that allows a designer to open a meeting, invite others, allow participants on a strictly controlled environment for model verification, problem solving, mark-ups, documentation, and so on. At the end, a meeting protocol is automatically written where all mark-ups, models, decisions, and actions are documented. This model is very simple and interests users because it focuses on doing work, not on using slogans, such as 'We use collaboration at our company.'
        "Lastly, we strongly believe not everyone needs collaboration. When two designers sit next to each other, they should have their collaboration under control without needing additional software. More complex working-together and maybe asking advice from outside experts and suppliers, however, could require a software tool. This is where collaboration will play a role in the years to come."
        - Jeroen Buring
        CoCreate Software, Germany

 

"I think what you say can certainly be true in some interpretations of collaborative software, but for us collaboration is more to do with communication of the design inside a collaborating team, rather than a fight over who controls what sessions.
        "At its basic level, our technology allows for real-time interactive navigation of the 3D model, but one of the major selling points is that NavisWorks can import and add together (we call it append) many different file formats so that users of differing CAD packages see one 'supermodel,' and then use the design review features of NavisWorks.
        "For example, .dgn from the structural engineer, ADT-flavored .dwg from the architect. Bring them in, combine into one .nwd file and then everyone sees the one design, and then collaborates (so sorry to keep using that word!).
        "The project manager controls the release of the .nwd file so that no single designer can change it. They can check for any interference between the file formats and design disciplines with our Clash Detective."
        - Peter Thompson
        NavisWorks, UK

"You were a little too parochial in your view of collaboration. Of course the single-location shops are going to have no use for collabware (I've seen it called that in CAD marketing materials other than the company of that name!). But as soon as you have two locations working on the same design, collaboration aids start to make sense. You choices are:

At some time, options #1, #2, and #3 will run out of steam as the organizational structure grows.
        "What is sad is the one-shop folks are being left in the dust by the rapid shift in priority of the CAD companies. It seems, for the near future, they will have to make themselves content with the falloff of whatever gets developed for the big guys."
        - Jon Rush

The editor replies: "I try to find all the downsides to technology, to counter the marketeers."

In related news, Geometric Software Solutions last week announced commercial availability of its CollabView 2.0, a framework for the rapid development of collaborative product development. http://www.geometricsoftware.com

        And IronCAD this week introduced AutoCAD Client for its TeamVault, which allows different CAD systems to  locate, manage and share designs with others. http://www.ironcad.com

 


PlanetCAD Sez No, NO, NO!

In the war of words between PlanetCAD and its hostile takeover nemesis, PCD Investments, PlanetCAD's chairman of the board, Eugene Fischer, said in a press release that PCD Investments did not accept his board's invitation to attend a meeting to discuss the takeover.
        Eric Weissmann of PCD Investments says he declined the invitation for two reasons: (1) both members of PCD Investments had a previous commitment for that date; and (2) the March 6 date left too little time before the March 8 board nominee notice deadline. "We sent a letter to the Company (and filed it with the SEC) where we proposed three alternative earlier dates, but PlanetCAD simply reiterated its invitation for March 6."
        PlanetCAD charges that PCD Investments did not provide answers to questions raised in a letter written March 1. PlanetCAD's board wants those questions answered satisfactorily before it analyzes the takeover proposal from PCD Investment.
        PCD Investments says they participated in two teleconferences with two directors concerning the going-private proposal. "Later, we attended a breakfast meeting with PlanetCAD CEO David Hushbeck. At these meetings, Fischer, Hushbeck, and Gill (a majority of PlanetCAD's directors) had the opportunity to ask whatever questions they wanted."
        To further resist a hostile takeover, PlanetCAD's board brought in a "Stockholder Rights Plan" -- aka poison pill -- that grants existing stockholders the right to purchase common stock having a value equal to two times the purchase price.
        PCD Investment responded that "generally speaking, we think it is inappropriate for a board of directors (that has overseen the destruction of more than 90% of shareholder value) to implement a poison pill."
        In related news, throughout February, PCD Investments has continued to purchase PlanetCAD shares at 19 cents each. PCD Investments intends to nominate six individuals to the company's board. 3.

 


Below the Radar

A summary of CAD industry news you may not have read elsewhere:

After its customers complained loudly, Autodesk didn't increase by 15% the price of network versions of AutoCAD last November, waiting instead until this June to implement it. The unannounced hike affects customers in Europe and the Americas.
        In a recent survey held on www.cadenceweb.com, 71.6% of respondees thought that Autodesk was not justified in forcing AutoCAD R14 users to upgrade to AutoCAD 2002. [Users weren't "forced."]

Graphisoft has adopted Consistent Software's Plan2Model <http://www.csoft.no> as a new ArchiCAD Add-on that creates 3D ArchiCAD building models from raster scans or from 2D CAD drawings. Graphisoft sees it useful for refurbishing projects (where floorplans might be archived in DXF format), and for cross-graders from competing 2D CAD products.
        ArchiCAD 20th Anniversary Edition combines Mac OS X and Windows XP version in one CD, plus fine-tuned DWG/DXF conversion, extended help, and transparent bitmaps. http://www.graphisoft.com
        In related news, Solibri Model Checker works with Graphisoft's ArchiCAD via IFCs. Future versions may be integrated more closely. SMC reads a model of a building, and then checks and analyses it for typical design solutions. http://www.solibri.com
        [I gotta say, there is some hot AEC software coming out of the Nordic countries these days. Like, Autodesk's newly announced Building Mechanical 2 and Building Electrical 2 are developed in Denmark.]

IMSI plans to release in 2Q TurboCADCAM (US$1,999), its first vertical industry-specific app based on TurboCAD. It does not use post processors, but generates native code specific to almost any controller. http://www.turbocad.com
        [This is the first of a series of vertical apps that lets IMSI up the price on its under-priced TurboCAD. Expect to see additional vertical apps for mech and arch.]

Chief Architect v8 features import 3D DWG and DXF files; 7,000 symbols; manufacturer-specific libraries; terrain modeling; convert CAD lines to walls; custom layer sets; and more. Chief Architect comes in several license editions: Enterprise (5 licenses); Professional (2 licenses); and Full (1 license). http://www.chiefarchiectect.com

PartsWorks.com is free of charge to visitors until March 31, 2002. You can download as many of the eight million SolidWorks parts as you need. http://www.partsworks.com

Intergraph made available its OGC WMS Viewer <http://www.wmsviewer.com> for use at Web sites that use the Web Map Server (WMS) interface standard defined by the Open GIS Consortium (OGC).

Cyco Software launched AutoManager Meridian 2002 document management software. http://www.cyco.com

@Last Software released SketchUp 2.0. Demo copy and upgrades available at http://www.sketchup.com

When available in April, GiveMePower's Code Once development technology allows a single codestream development of custom CAD and vector graphics software for simultaneous deployment limited to across Windows desktop and Windows CE portable devices. http://www.givemepower.com

When available on April 3, the HP Designjet Copier cc800ps (US$19,995) is HP's first large-format color copier/scanner/printer, which features full-color scanning and copying at up to 2400dpi with 40-inch wide scanning. http://www.designjet.hp.com/Spring2002/prodinfo_cc800ps_main.html

PTC and EDS announced a technology exchange agreement. "The companies are both striving to make it possible to develop, implement, maintain and support interoperable CAD, data management, and visualization solutions between each company's respective product line."


Seminars & Conferences

COFES2002 (Congress on the Future of Engineering Software) May 2-5 in Scottsdale AZ USA. http://www.cofes.com

The CAD Society meeting, Wednesday, March 20 at 5:15 pm, in the Press Conference Room #N426A at McCormick Convention Center in Chicago IL USA. Please RSVP to brad.holtz@cadsociety.org .

 


 New Newsletters/Webzines

IWT Verlag launched its new German-language 'Inventor Magazin' last month. http://www.iwtnet.de


People/Companies on the Move

Blast from the past: SoftSource is back in the AutoCAD-compatibility business after being distracted by Catarra (providing Web pages to pocket devices) for a couple of years. Effective February 4, SoftSource Corporation changed its name to Catarra, Inc. http://www.caterra.com and http://www.softsource.com

MSC.Software is buying rival Mechanical Dynamics for US$120 million cash in 2Q or this year. Shares of Mechanic Dynamics rose 55% on the news, while shares of MCS barely budged.

Eagle Point co-founder John Biver says he is determined to establish Eagle Point as the leader in land development technology solutions. http://eaglepoint.com

Graphisoft appointed Ray Small as the company's new ceo effective immediately. Graphisoft founder and former ceo Gábor Bojár continues as chairman of the board. Prior to joining Graphisoft, Mr Small was senior vp at Gartner's European division.

SMARTEAM announced the appointment of Chris Jones as president of SMARTEAM Europe. Mr Jones was the managing director of the Engineering Animation division of EDS PLM Solutions.

Raindrop Geomagic promoted Peter Scott to vp of engineering..

 


Computer News Summaries

Microsoft suffered a minor legal setback Friday when a federal judge questioned the software giant's claim on the word "Windows." - CNET

 


Market News

Autodesk declared a 2-for-1 stock split for stockholders as of the close of business on April 4.


The WorthWhile Web

http://www.novagarden.com/sony-clie/peg-nr70vic.html
NovaGarden
(Parody) Swiss Army version of the new Sony NR70 PalmPilot.

http://www.cadinfo.net/editorial/adeskrevit.htm
CADinfo.net
"On Autodesk, ADT, and Revit": Geoff Harrod casts an opinion on Autodesk's announcement to acquire Revit.

http://www.magma.ca/~lancucki/Visio3rdparty.htm
http://www.magma.ca/~lancucki/Visio_VBA_Information.htm
Lancucki-Marshall
Source for Visio VBA examples and stencils.

http://www.business2.com/articles/mag/print/0,1643,38604,00.html
Business 2.0
"The 101 Dumbest Moments in Business"

 


Letters to the Editor

Re: WinXP and Extra 1GB Memory?

"This works only if the application sets the IMAGE_FILE_LARGE_ADDRESS_AWARE flag in the header to say that they are well-written enough not to toast when they ask for memory and get back stuff above 1GB. So ask your vendor today whether it sets this flag in their Windows app or not."

        - Steve Loughran

Re: Notable Quotable

"While on the surface the reading and writing (on the Internet) may have a bit of truth, I've seen the Instant Messenger conversations my kids are involved in, and approximately every third word is a variation of LOL. If we gauge reading and writing by the content I don't think we can congratulate ourselves for progress!  

        "For our family I have had to severely limit Internet time because it was degenerating to the level of TV (which our kids don't watch either).

        "On another note, thanks for the ezine. I can't consider myself a proficient CAD user, I bought TurboCAD for help with my handyman business and haven't got beyond 2D work yet, but I still learn something from you on occasion."

        - Eric Miller

 


Spin Doctor of the Moment

"We're a company that pretty much can do anything of a software nature that we set our mind to -- darn it!"
        - Microsoft CEO Steve Ballmer, 6 February 2002

"I couldn't do what you've got here. Forget about any business thing. Technically I just couldn't do it."
        - Microsoft executive Jim Allchin, 5 March 2002


Notable Quotable

"The reason you're hearing the same things over and over is because companies in the high tech biz, no matter what they do for a living, really are saying the same things over and over."
        - Jon Peddie Research newsletter
  


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