tag:blogger.com,1999:blog-5634085675780254011.post9025533158275167545..comments2024-03-26T02:30:27.201+11:00Comments on practical BIM: Four Things BIM Doesn't DoAntony McPheehttp://www.blogger.com/profile/15366532205983073622noreply@blogger.comBlogger12125tag:blogger.com,1999:blog-5634085675780254011.post-46593875118626583452019-02-24T21:42:08.188+11:002019-02-24T21:42:08.188+11:00I completely agree with Luke, "there is no re...I completely agree with Luke, "there is no reason the idea of hyper-modelling has to privilege 2D drawings." I no longer work for Bentley (it's been over 3 years since I left). I now have my own company helping other software companies innovate. I am giving away for free my best ideas to date: I wrote a book last year that, in Chapter 3 of the book, specifies for software developers precisely how software and digital media can evolve in way that gives POWERFUL new expression to the FUNCTION of "drawing", articulating the ACT of "taking closer look" and doing this within models of any kind, while NOT being constrained in any way by the conventional FORM of drawing. Download links to the book on Apple Books or PDF (ePub will follow this year) are here: https://tangerinefocus.com/tangerine-2/consulting-services-advancing-the-evolution-of-media/ It's FREE. Everyone is free to read it and use it in software development however they choose. Again Chapter 3 is the software development spec. The rest of the book is commentary from my own experience of 12 years of modeling high-detail BIMs and complete construction drawing sets via BIM process. I hope you enjoy the book and that it's useful to you in mapping the future evolution of software and media itself. Rob Snyderhttps://www.blogger.com/profile/00536200776304377280noreply@blogger.comtag:blogger.com,1999:blog-5634085675780254011.post-71247084579892228182015-10-25T15:03:16.101+11:002015-10-25T15:03:16.101+11:00I like your observation of the next step for bim m...I like your observation of the next step for bim moving from a drawing based deliverable system to a model based one. The ease of making changes in models makes many nervous. A door for example can too easily be moved or deleted by mistake. I had thought of making a validation parameter that would indicate any changes in an element and a macro that would find any element that reported a no or not valid parameter state. Revit must know everything about the model, the location and parameters of every element. The question is how to make a parameter change state for example Yes (validated) to No (not validated) every time that element changes. These changes must include changed parameters and changed locations. Once this is accomplished this parameter can be scheduled or flagged up using macros or some clever add on that can catigorize and date all changed elements. This will enable better control over changes and when a model is shared with a construction team they can be instructed to not build any element that displays a not valid parameter. Perhaps this invalid parameter can automatically send an RFI to the. Design team or be flaged up in a new revit review mode. <br />In the present world this validation parameter will aid in the drawing checking process. Anonymoushttps://www.blogger.com/profile/08917527604846475491noreply@blogger.comtag:blogger.com,1999:blog-5634085675780254011.post-49417435434586009602014-02-11T17:03:10.632+11:002014-02-11T17:03:10.632+11:00For those Revit users interested in the open sourc...For those Revit users interested in the open source BCF (BIM Collaboration Format) there is a free addin for Revit.<br /><br />http://matteocominetti.com/bcf-revit-plugin/<br />Antony McPheehttps://www.blogger.com/profile/15366532205983073622noreply@blogger.comtag:blogger.com,1999:blog-5634085675780254011.post-85222743217728175872014-02-03T21:10:39.497+11:002014-02-03T21:10:39.497+11:00I like your thought that a building control office...I like your thought that a building control officer will measure the width of an escape corridor during or once the building is completed. I've never seen a building control officer do anything other than take a casual walk around while carrying out 'chit chat'.Anonymoushttps://www.blogger.com/profile/10228279784051400462noreply@blogger.comtag:blogger.com,1999:blog-5634085675780254011.post-88765851844441546312014-01-30T08:30:32.638+11:002014-01-30T08:30:32.638+11:00I think a parallel issue is that Builders/GCs are ...I think a parallel issue is that Builders/GCs are becoming the primary stewards of the most mature, multidisciplinary BIM data -- and non-content creation tools like Navisworks have more intelligence in all 4 areas than modelling tools like Revit.<br /><br />You just need someone who can drive Navis at this near-construction phase, but also understands the design and architectural process.<br /><br />For me, this starts Monday...Anonymoushttps://www.blogger.com/profile/14057955734322127661noreply@blogger.comtag:blogger.com,1999:blog-5634085675780254011.post-16150657976763205502014-01-29T08:51:10.351+11:002014-01-29T08:51:10.351+11:00Thanks, Antony!Thanks, Antony!Robert Andersonhttps://www.blogger.com/profile/02881066383294557792noreply@blogger.comtag:blogger.com,1999:blog-5634085675780254011.post-63121405173297506642014-01-28T06:48:41.348+11:002014-01-28T06:48:41.348+11:00William, my point is the functionality should be b...William, my point is the functionality should be built in to authoring softwares.<br /><br />Of course we can get third party proprietary software to do these things. But each does it in their own unique way, they create separate workflows and are invariably after the fact - they check rather than prevent.<br /><br />I'm interested in practical application of BIM. You can't do BIM without software so it has to be part of the discussion. I apologise for my Revit bias, but it is the software I know. My intention is to use it for specific examples rather than push it as the premium BIM software.<br /><br />You are right about my terminology. I should be using VDC (Virtual Design & Construct) rather than BIM. But I want this issue to be appreciated by participants in the whole BIM process. Those involved at the end seem to have no understanding or appreciation of the VDC part. They seem to believe the model magically appears fully formed ready to be used for their specific purposes. <br />Thanks for your comments.Antony McPheehttps://www.blogger.com/profile/15366532205983073622noreply@blogger.comtag:blogger.com,1999:blog-5634085675780254011.post-53237930570908506402014-01-28T06:10:39.504+11:002014-01-28T06:10:39.504+11:00[part 2]
(Blogger prevented Robert from posting t...[part 2] <br />(Blogger prevented Robert from posting this so I've done it)<br /><br />COMMENTS: There has been a lot of work in this area. The most well-known is the so-called "BIM Collaboration Format", or BCF. BCF has been proposed as part of the National BIM Standard, version 3, which is soon coming up for a vote to be administered by the National Institute of Building Standards. BCF has some advantages over simple embedded commentary (in a proprietary BIM application) in that it allows for multiple models, of multiple origins, and stores an issue comment, a point-of-view, along with other optional attachments (such as a screenshot image.) There is really a lot going on in this space. Google "BIM Collaboration Format" to see more. <br /><br />I would also add that Vectorworks has for many years had an integrated redlining tools which allows commenting, status reports on issues, and "picking up" of redlines. They can be used in 2D or 3D and so are fully applicable to BIM models. <br /><br />As a last point of reference, isn't commenting what DWF is all about? <br /><br />REVISIONS (or what I call "Versioning"): A couple of data points here. The interesting web-based BIM server package called Assemble handles differencing of models uploaded from Revit. And more generally, the OpenBIM standards (based on the IFC data model plus some workflow capabilities) are working in this area. See: <br /><br />http://www.youtube.com/watch?v=XaEvLJreBgI <br /><br />CONCLUSIONS: It's interesting to note that most BIM users (and most BIM software applications) pursue a drawing-centric, as opposed to model-centric, workflow. As you suggest, it will not be this way forever. However, I think that the BIM workflow will move from one of "sketch, BIM, generate drawings, build, operate" to a more generalized workflow model of what I call the "four ATEs": create, validate, fabricate, operate. CREATE is what we currently think of as the design and modeling process. VALIDATE is what we currently use drawings (and human judgement in interpreting drawings) for. This will in future give way to highly automated testing of models, which will have a profound effect on construction productivity. FABRICATE of course encompasses the procurement, fabricating and erection of buildings, which will (like the testing) become more automated and robotic. OPERATE uses the life-cycle aspects of the BIM, which are in many ways distinct from its construction aspects. I think it would be interesting to have a discussion about the difference between construction-BIM and operational-BIM and how and when the BIM model gets "branched" for this to happen. <br /><br />If you've reached this point, thanks for reading! <br /><br />Robert Anderson, VP, Nemetschek Vectorworks Antony McPheehttps://www.blogger.com/profile/15366532205983073622noreply@blogger.comtag:blogger.com,1999:blog-5634085675780254011.post-68823669412863085352014-01-28T05:54:19.896+11:002014-01-28T05:54:19.896+11:00Antony again spot on. One thing on the color codin...Antony again spot on. One thing on the color coding there is a non-authoring platform that does just this. It is called Assemble systems and it also offers a limited push back of information to the model. While this would be better to be in the authoring platform it does work quite nicely.Anonymoushttps://www.blogger.com/profile/07084705748204338488noreply@blogger.comtag:blogger.com,1999:blog-5634085675780254011.post-62877162187043691052014-01-28T05:27:49.675+11:002014-01-28T05:27:49.675+11:00Dear Anthony
I appreciate the effort to put some d...Dear Anthony<br />I appreciate the effort to put some difficulties on the table and I join Flavia in congratulating you for it, but I disagree with the approach, and above all with the conclusion that it will rely on the software.<br />Is this about "What BIM doesn't do" or "What the model doesn't do" (even without getting started with the correctness of the expression BIM model, that you used too many times for my taste)?<br /><br />Just by adding governance to the process you get answers to all the challenges. Robert Anderson's reply above is an amazing start. Just picking on TOLERANCE for example, 2D CAD is as precise - which could open a can of worms labelled "the disadvantage of precision", but in a BIM workflow you can set the clash detective to spot soft or hard clashes in the coordination across models once you add the intelligence and knowledge where needed.<br />It's easy to get started in a sterile argument about software vs industry, and I imagine that this is not the spirit of the conversation you are starting, my answer to "where to start?" is simply map the process and agree what needs doing, only then pick the right tool for the task. In my experience Navisworks is a great way to track changes, communicate comments and allow for tolerances, but notice I did not rely on a name to describe the task above. Maybe the elephant in the room is constraining the image of BIM to an RVT file and not a more complex production ecosystem (despite it remains my preferred authoring tool).<br />In the same line I disagree with labelling a BIM discussion with the tag Revit, or even constraining it to buildings. It was in fact brought to my attention by a specialist in BIM implementation for infrastructure, who uses a completely different set of tools but shares the same principles...<br />Thanks for triggering some good discussion, online and internally in my team.<br />Kind regards,<br />William.UnderNDAhttps://www.blogger.com/profile/04270536446633582339noreply@blogger.comtag:blogger.com,1999:blog-5634085675780254011.post-53671960537566430722014-01-28T01:09:57.814+11:002014-01-28T01:09:57.814+11:00Congratulations for the post.
I agree with everyt...Congratulations for the post. <br />I agree with everything and I also encounter the same difficulties. <br />Flavia<br /><br />www.bimrevit.comFlávia Maritanhttps://www.blogger.com/profile/17127666844200851288noreply@blogger.comtag:blogger.com,1999:blog-5634085675780254011.post-32277421540070929342014-01-27T07:50:37.354+11:002014-01-27T07:50:37.354+11:00[part 1]
Your post is interesting; I agree with yo...[part 1]<br />Your post is interesting; I agree with your premist that the eventually, BIM will use a process of "DODO" - Drawings On Demand, Only. However, I can offer multiple examples of current, active BIM initiatives that fill in the four deficits that you describe. Allow me to address them below:<br /><br />INTENTIONALITY: I can think of a couple of BIM process initiatives here.<br /><br />First is the excellent "BIM Planning Guide" series put forward by Penn State, one of whose goals is to establish the purpose (AKA intention) for the various BIMs in a project. They don't "plug it in" to the model, but provide a very valuable conceptual framework for building owners to lay the foundation for BIM value (as in, "Remind me why we are going to this trouble, again?")<br /><br />The second is the Building Programming Information Exchange, whose purpose is to get building performance-specifications embedded in the project's Space entities at the programming stage, where they can be quantified, reviewed, and tracked over the course of the project. This initiative is being promoted by a Scandinavian software company called dRofus. I suspect that a Houston-based company, Trelligence, may also have some initiatives in this area, as, frankly does my company Vectorworks, which has an extensive set of programming / space planning tools that are integrated with our BIM product, Vectorworks Architect.<br /><br />http://www.nibs.org/default.asp?page=bsa_bpie<br />http://www.drofus.no/en/index.html<br />http://www.trelligence.com/<br />http://www.vectorworks.net/sketchtobim/<br /><br />TOLERANCE: There are not a lot of answers here, but the questions are being asked at least. Chuck Eastman, in heading up a Precast Concrete BIM standard financed by the Charle Pankow Institute, talks often about the "multiple models" required by the structural industry, and the different tolerancing required. A precast double-tee span, for instance, might multiple lengths:<br /> The length as drawn (in place and loaded/deflected);<br /> The length as formed (cambered);<br /> The length as tensioned/cast;<br /><br />http://dcom.arch.gatech.edu/pcibim/default.aspx<br />Robert Andersonhttps://www.blogger.com/profile/02881066383294557792noreply@blogger.com