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					          Welcome to The 50th Annual CSI
             Show™ and Convention

                                              BIM: How Does the
                                              Emerging Building
                                              Information Model
                                              Concept Relate to Specs?
                                              Susan McClendon, CSI, CCS
                                              Executive Vice President
                                              Building Systems Design, Inc.

                                Las Vegas, NV
                                March 28 – April 1, 2006

            BIM: How does the emerging BIM concept relate to specs?
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            50th Annual CSI Show & Convention, Las Vegas
   Questions We Hope to Answer
• What is BIM?
• How can a specifier use a project BIM?
• How will electronic information retrieval
  (interoperability) work?




          BIM: How does the emerging BIM concept relate to specs?
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          50th Annual CSI Show & Convention, Las Vegas
                                   What is BIM?
• The acronymn BIM refers to:
          – The concept of Building Information Models
            as repositories for shared project information
             • “BIMs” in general
          – The actual repository of shared project
            information for a particular project
             • “The BIM”
          – The process of developing building
            information for a particular project
             • The term “modeling” used as a verb
              BIM: How does the emerging BIM concept relate to specs?
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              50th Annual CSI Show & Convention, Las Vegas
          Visions of BIM as a Concept
• Different visions depending on your point
  of view:
          – Facility owners
            • Hope for improved facility management operations
              and lowered costs
          – Software vendors
            • Hope for increased sales
          – Design professionals
            • Hope for improved production methods and lower
              costs
             BIM: How does the emerging BIM concept relate to specs?
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             50th Annual CSI Show & Convention, Las Vegas
                  Facility Owner Vision
• Best represented by NIBS National BIM
  Standard Project Committee.
          – Founded late 2005
          – NIBS Facility Information Council
          – Many U.S. government facilities agencies
          – Private organizations
          – Software vendors
• Broad, life cycle view

             BIM: How does the emerging BIM concept relate to specs?
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             50th Annual CSI Show & Convention, Las Vegas
                       NBIMS Definition
• "A Building Information Model (BIM) is a digital
  representation of physical and functional characteristics
  of a facility. As such it serves as a shared knowledge
  resource for information about a facility forming a reliable
  basis for decisions during its life-cycle from inception
  onward.
• "A basic premise of BIM is collaboration by different
  stakeholders at different phases of the life cycle of a
  facility to insert, extract, update or modify information in
  the BIM to support and reflect the roles of that
  stakeholder. The BIM is a shared digital representation
  founded on open standards for interoperability.
• "The US National BIM Standard promotes the business
  requirement that this model be interoperable based on
  open standards."
          BIM: How does the emerging BIM concept relate to specs?
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          50th Annual CSI Show & Convention, Las Vegas
                          NBIMS Definition
• Key concepts:
          – digital representation of physical and
            functional characteristics
          – shared knowledge resource
          – life cycle
          – open standards
          – interoperability
• No mention of 3D CAD or geometric
  model
             BIM: How does the emerging BIM concept relate to specs?
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             50th Annual CSI Show & Convention, Las Vegas
          Software Vendor Vision
• “…parametrically-defined interacting building
  objects
• “…simultaneous 2D/3D/parametric viewing and
  editing
• “…integrated reporting of non-graphical data“
• Tend to think that their software application will
  function as the [single] repository for project BIM
  data
• Focus on the design and construction phases

          BIM: How does the emerging BIM concept relate to specs?
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          50th Annual CSI Show & Convention, Las Vegas
          Design Professional View
• Torn between these two opposing views
• Need to do what their clients want
• Limited to software offerings available




          BIM: How does the emerging BIM concept relate to specs?
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          50th Annual CSI Show & Convention, Las Vegas
                     BIM as Repository
• Two fundamentally different ways to look
  at BIM as a repository for shared project
  data

• 1. SINGLE-PACKAGE concept
• 2. MULTIPLE-APPLICATION concept



          BIM: How does the emerging BIM concept relate to specs?
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          50th Annual CSI Show & Convention, Las Vegas
          Single-Package Concept
• All data is actually stored in a single data
  structure manipulated by a single software
  application
• Contract documents produced as a “view”

                             Geometry, dimensions, location
                             Space program                 Design, regulatory criteria
                             Product info                  Specifications
                             Cost info                     Scheduling info
                             Submittals data               Project record data
                             O&M data                      Occupancy data



          BIM: How does the emerging BIM concept relate to specs?
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          50th Annual CSI Show & Convention, Las Vegas
             Single-Package Concept
•          Some specs-related solutions suggested as
           by-products of using 3D CAD:
          1. Generation of the entire Project Manual as a “view”
             of the 3D model
             •        The “just push a button to get the specs” method
          2. Elimination of specifications as text documents
             •        Replaced by the property sets attached to objects
          3. Automatic coordination of the specs and drawings
             •        Presumably because the single location precludes the
                      need for coordination


                 BIM: How does the emerging BIM concept relate to specs?
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                 50th Annual CSI Show & Convention, Las Vegas
             Single-Package Concept
• 3D CAD Vendor View:
          – It’s the simple and obvious solution
          – They really do hope their software will solve
            everybody’s other problems too
• They are handicapped by their:
          – Natural blind spot regarding data that doesn’t
            fit in the geometric model
          – Lack of knowledge about specs

             BIM: How does the emerging BIM concept relate to specs?
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             50th Annual CSI Show & Convention, Las Vegas
            Single-Package Concept
• Design Professional View:
          – It’s the simple and obvious solution
          – They want to use 3D geometric models
• They are handicapped by:
          – Not understanding enough about specs
          – Lack of any examples
            • No Single-Package solutions exist, so they haven’t
              had a chance to see how it might (or might not)
              work

             BIM: How does the emerging BIM concept relate to specs?
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             50th Annual CSI Show & Convention, Las Vegas
             Single-Package Concept
• Facility Owner View:
          – No opinion – do whatever works
          – See NBIMS definition – open source is best,
            so reliance on a single vendor solution is bad
          – Too soon to tell
            • Early testing has shown that the organization’s
              information processes usually change as a result
              of the analysis



             BIM: How does the emerging BIM concept relate to specs?
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             50th Annual CSI Show & Convention, Las Vegas
          Multiple-Application Concept
• The most compelling argument for the
  Multiple-Application concept is the
  multitude of data types that need to reside
  in a comprehensive project BIM
• Many of the non-geometric data types
  require completely different software
  functionality, such as
          – Text management
          – Database searching, visual and text reporting
             BIM: How does the emerging BIM concept relate to specs?
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             50th Annual CSI Show & Convention, Las Vegas
           Multiple-Application Concept
Regulatory                                                                  Bidding Documents
 criteria                                                                     Contract Documents
                                2D Drawings or 3D
                                geometric model                                      Specs
       Design
       criteria


 Space                                                                             Record documents
program
                                            Project Record
                                            Drawings or Model
                                                                                             Submittals data



                        Scheduling data                     Cost estimating data
                                                                                                      Occupancy
                                                                                       O&M data         data


                  BIM: How does the emerging BIM concept relate to specs?
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                  50th Annual CSI Show & Convention, Las Vegas
          Multiple-Application Concept
• BIM data resides in multiple locations
  accessed by multiple software applications
          – Current situation
• The data locations are accessible to all
  who need the data
          – Not usually true but relatively easy to do
• The software applications can interchange
  data without human intervention
          – Future goal, necessary for effective use
              BIM: How does the emerging BIM concept relate to specs?
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              50th Annual CSI Show & Convention, Las Vegas
          Multiple-Application Concept
• International Alliance for Interoperability
  (IA) promotes multiple-application concept
• IAI Ifc model has standardized
  interoperability for a sub-set of all data
  needed in a BIM
• Much spec-related data is housed in “user-
  defined” data structures
• No standard terminology for user-defined
  data
            BIM: How does the emerging BIM concept relate to specs?
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            50th Annual CSI Show & Convention, Las Vegas
            Interoperability Principles
• Translation of data between similar
  applications
          – CAD to CAD, word processing to XML files
          – Goal is replication without loss of data
• Communication of data between dissimilar
  applications
          – CAD to specs, specs to CAD, CAD to cost
            estimating, estimating to scheduling, etc.
          – Goal is to inform, for coordination, accuracy,
            completeness
              BIM: How does the emerging BIM concept relate to specs?
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              50th Annual CSI Show & Convention, Las Vegas
             Interoperability Principles
• Different applications perform different functions
• Each does not contain all the data of the others,
  only the data it needs for its purposes
• What happens after communication depends on
  the software application
          – Some “execute” – automatically change their own
            data based on the incoming data
          – Some “advise” – notifying the user that there may be
            a coordination problem


              BIM: How does the emerging BIM concept relate to specs?
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              50th Annual CSI Show & Convention, Las Vegas
                         3D CAD vs. BIM
• A BIM could use 2D CAD, or even
  digitized paper drawings
• 3D geometric modeling is more useful
• 3D geometric model is not the entire BIM
• Lots of different technologies
• For specification purposes, the CAD
  technology doesn’t really matter as long as
  it can store useful data
          BIM: How does the emerging BIM concept relate to specs?
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          50th Annual CSI Show & Convention, Las Vegas
                                            PART 2

          HOW CAN A SPECIFIER
            USE A 3D MODEL?



           BIM: How does the emerging BIM concept relate to specs?
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           50th Annual CSI Show & Convention, Las Vegas
                          Using a 3D Model
• Retrieve information that helps identify what to
  specify
• At present, retrieving relevant information
  requires a human to read the data
          – Except for one interoperability-style application
• Printed reports can be generated by some
  applications
• Otherwise, the specifier will have to use the 3D
  software itself

              BIM: How does the emerging BIM concept relate to specs?
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              50th Annual CSI Show & Convention, Las Vegas
                          Using a 3D Model
• What specification-related data do 3D
  model software packages store?
• Elements
          – Walls, roofs, doors, windows, equipment, specialties,
            etc.
• Element properties
          – Identification – names, id numbers, etc.
          – Dimensions – length, thickness, height, width
          – Locations – X, Y, Z coordinates
          – Visual Characteristics - colors, textures, gloss,
            rendering characteristics
          – Element-specific properties – e.g. fire rating
              BIM: How does the emerging BIM concept relate to specs?
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              50th Annual CSI Show & Convention, Las Vegas
                          Using a 3D Model
• Some 3D model software packages also
  store:
          – Material properties other than visual
            characteristics
             • Manufacturer name, model name, other
               identification
          – Components of composite elements
             • e.g. the layers in a wall or roof
             • Tied to the material names for visual purposes

              BIM: How does the emerging BIM concept relate to specs?
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              50th Annual CSI Show & Convention, Las Vegas
    3D Geometric Model Software
• “Object”-Based:
          – Building elements are handled as objects,
            with associated properties
• But…
          – Products as specifiers understand them
            (materials and equipment) are NOT usually
            handled as objects in the 3D model
          – Materials, as understood by the software, are
            properties of surfaces, used primarily for
            visual rendering
             BIM: How does the emerging BIM concept relate to specs?
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                                 Object Example
• Exterior wall made of brick on stud backup
          – Autodesk Revit models this as:
             •    Wall Element (with properties)
             •    Internal layers identified
             •    Layers labeled with a “material” identification
             •    “Materials” can have identity properties as well as
                  visual properties
          – Schedules list:
             • Counts and quantities of elements
             • Counts of “material” instances
                 BIM: How does the emerging BIM concept relate to specs?
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                 50th Annual CSI Show & Convention, Las Vegas
• Autodesk Revit
  wall object
  insert tool




          BIM: How does the emerging BIM concept relate to specs?
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                             Object Example
• Graphisoft ArchiCAD handles this example
  in the same way as Revit, except:
          – No internal layers are identified
          – Users may add database records attached to
            the element for:
            • Text description of internal components
            • Computational parameters for quantity take-off
            • Identification purposes
          – Printable Schedules list any element or
            property stored in database
             BIM: How does the emerging BIM concept relate to specs?
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             50th Annual CSI Show & Convention, Las Vegas
          Graphisoft ArchiCAD window object insert tool




           BIM: How does the emerging BIM concept relate to specs?
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                             Object Example
• Bentley Architecture handles this example
  in the same way as Revit, except:
          – Internal layers are not defined, but can be
            user defined
          – Users may add any type of property desired
          – Printable Schedules list any element or
            property stored in database



             BIM: How does the emerging BIM concept relate to specs?
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             50th Annual CSI Show & Convention, Las Vegas
• Bentley
  Architecture
  window insert
  tool




          BIM: How does the emerging BIM concept relate to specs?
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          50th Annual CSI Show & Convention, Las Vegas
          Spec Info NOT in 3D Models
          – Individual bricks, studs, sheathing panels, and
            such are NOT modeled as 3D objects
          – Things like doors and windows, which we
            tend to think of as products, are handled as
            element objects
          – “Materials” are not objects, just sets of
            properties, almost entirely for visual rendering
          – Most packages print lists of element names
            but not usually their properties
          – Some packages print lists of “materials” used
              BIM: How does the emerging BIM concept relate to specs?
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              50th Annual CSI Show & Convention, Las Vegas
               Autodesk Revit Materials settings




          BIM: How does the emerging BIM concept relate to specs?
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          50th Annual CSI Show & Convention, Las Vegas
                         Relevant Features
• What is the 3D software’s built-in Library?
          – How many elements does it include and of what
            types?
          – What types of element properties are offered?
          – How does it handle products and their properties?
          – How complete is the information in the properties
            fields?
          – Can your add your own elements?
          – Can you add your own properties?
          – Can you use blank pre-defined properties for other
            purposes?

              BIM: How does the emerging BIM concept relate to specs?
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              50th Annual CSI Show & Convention, Las Vegas
                         Relevant Features
• Are there print-outs for specifier use?
          – What kinds of predefined and customizable schedules
            or lists are there?
          – What types of objects and properties are shown on
            the schedules or lists?
          – For composite elements, can the internal components
            be reported?
          – Can the text labels, tags, or keynotes be printed in a
            report?
          – Can the schedules or lists be printed out without
            placing them on a 2D drawing sheet?
              BIM: How does the emerging BIM concept relate to specs?
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              50th Annual CSI Show & Convention, Las Vegas
      Meaningful Information Retrieval
• Depends on whether the 3D model’s data
  structure will hold the data needed
          – All of those reviewed have some deficiency
• Depends on how the specification
  application reacts to the incoming data
          – Does it “advise” or “execute”?




             BIM: How does the emerging BIM concept relate to specs?
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             50th Annual CSI Show & Convention, Las Vegas
      Meaningful Information Retrieval
• Depends on the completeness of the 3D
  model’s data
          – Usually not the specifier’s responsibility
          – Built-in library objects usually have a lot of
            blank properties
          – If the user adds elements with only graphical
            representation, then only a label, tag, or
            keynote will identify it
          – An office-master object and product library will
            probably be necessary
              BIM: How does the emerging BIM concept relate to specs?
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              50th Annual CSI Show & Convention, Las Vegas
      Meaningful Information Retrieval
• Start by using the “out of the box” tools to
  retrieve information
• Prove to yourself that the 3D model can
  hold the information needed by the
  specifier
• A software solution will not be any more
  satisfactory than the manual method


          BIM: How does the emerging BIM concept relate to specs?
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          50th Annual CSI Show & Convention, Las Vegas
                                          PART 3

      ELECTRONIC INFORMATION
            RETRIEVAL




          BIM: How does the emerging BIM concept relate to specs?
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          50th Annual CSI Show & Convention, Las Vegas
                               Interoperability
•          What type of interoperability should be
           promoted between 3D model packages and
           specifications?
          1. Get information from the spec to prepare the
             model
          2. Get information from the model to prepare
             the spec
          3. Compare information from both, to correct
             errors
          4. Look up information in completed
             documents
             BIM: How does the emerging BIM concept relate to specs?
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             50th Annual CSI Show & Convention, Las Vegas
                     Passing Information
                     From the 3D Model
• Should we want to generate the spec from
  the information in the 3D model?
• Could specs as text documents be
  eliminated?
• Is there enough information in the 3D
  model to serve as specifications?
• If we wanted to could we put enough data
  in the 3D model to generate the specs?
          BIM: How does the emerging BIM concept relate to specs?
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          50th Annual CSI Show & Convention, Las Vegas
                        Passing Information
                        From the 3D Model
• Because the 3D geometric model contains
  objects representing building products with
  attributes that define their properties,
  some people think:
          – This is sufficient information to generate a
            specification
          – We could just click on an object in the model
            to view the specs, no text document required
          – We could just push a button and out comes
            the entire project manual
             BIM: How does the emerging BIM concept relate to specs?
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             50th Annual CSI Show & Convention, Las Vegas
                         Passing Information
                         From the 3D Model
• But specs as text documents can’t be eliminated
• Human-readable, legally-enforceable documents
  are required for Contract Documents
          – As long as Design-Bid-Build, Fixed-Price is a viable
            contracting method, text documents will be required
          – Stable text documents, not just text regenerated on
            the fly from a database
          – Electronic copy will be acceptable in the future, but it
            will still be visual images of the stable text documents


              BIM: How does the emerging BIM concept relate to specs?
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              50th Annual CSI Show & Convention, Las Vegas
                            Passing Information
                            From the 3D Model
• Is there enough information in the 3D model to
  serve as specifications?
          – No, product names and properties are not sufficient
            information for Contract Documents
          – Other types of information needed:
             •    Quality assurance and quality control
             •    Workmanship
             •    Auxiliary products never shown on the drawings
             •    Acceptable sources
             •    Substitution limitations
             •    Contract administration procedures
             •    Other contractual issues

                 BIM: How does the emerging BIM concept relate to specs?
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                 50th Annual CSI Show & Convention, Las Vegas
                           Passing Information
                           From the 3D Model
• If we wanted to could we put enough data in the
  3D model to generate the specs?
• In theory, all the “other” spec data can be stored
  in little bits in the database and assembled into a
  text document based on built-in criteria
• The 3D CAD software would need to be a text
  manager
          –   Very complicated software
          –   Functionality currently not provided
          –   Functionality served adequately by other software
          –   Why not just interoperate instead?

                BIM: How does the emerging BIM concept relate to specs?
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                50th Annual CSI Show & Convention, Las Vegas
    Generating Specs from 3D Model
• But wouldn’t it be reasonable to have the
  geometric data “drive” the preparation of
  the spec?
          – Assume that we accept that all the “other”
            spec data is not stored in the model
          – And that the model data constitutes “inputs” to
            a specification application
          – Is this reasonable? Do we want it to happen
            this way?
             BIM: How does the emerging BIM concept relate to specs?
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             50th Annual CSI Show & Convention, Las Vegas
    Generating Specs from 3D Model
• We could assume that
          – The product names and properties in the
            project model are COMPLETE and
            CORRECT
          – The specification application is properly set up
            and can use the drawing information
          – Issues that are not mentioned on the
            drawings are dealt with by built-in
            assumptions or criteria

              BIM: How does the emerging BIM concept relate to specs?
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              50th Annual CSI Show & Convention, Las Vegas
    Generating Specs from 3D Model
• Comprehensive model data is likely to be very
  difficult to achieve
          – A persistent problem in 2D CAD is that the drafter can
            draw it but doesn’t know what it’s supposed to be
            made out of
          – Back-tracking to fill in the missing data is often so
            time-consuming it is never done
          – In 3D geometric models the anticipated user is higher
            level than a drafter, but a similar problem exists
          – Comprehensive libraries of 3D objects are not
            available
          – Ready-made 3D objects are minimally populated


              BIM: How does the emerging BIM concept relate to specs?
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              50th Annual CSI Show & Convention, Las Vegas
    Generating Specs from 3D Model
• Without comprehensive model data, the
  specification application doesn’t have
  enough inputs to complete the spec
• Ok, we could be happy with what we do
  get and finish the spec in the normal
  manner
• But, what if the model data is wrong? Do
  we trust the input?

          BIM: How does the emerging BIM concept relate to specs?
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          50th Annual CSI Show & Convention, Las Vegas
          Example of Using Model Info to
                Generate Spec
• E-Specs with AIA Masterspec®
          – Based on Multiple-Application Concept
          – Third-party add-on to Autodesk AutoCAD,
            Architectural Desktop, or Revit
          – Reads the drawings or model for text strings
          – Matches text to input side of Masterspec checklist
          – Executes the checklist based on selections from the
            drawings
          – Edits out text that doesn’t apply
          – Regenerates spec after changes to the model
          – Manual coordination of subsequent changes

              BIM: How does the emerging BIM concept relate to specs?
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              50th Annual CSI Show & Convention, Las Vegas
• e-SPECS® with
  Masterspec®
  checklist
  interface




          BIM: How does the emerging BIM concept relate to specs?
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          50th Annual CSI Show & Convention, Las Vegas
                     Passing Information
                      TO the 3D Model
• Spec application could output product
  name lists, keynote lists, etc.
• Software could show the 3D model maker
  which things are already specified
• “Advise” style interoperability only




          BIM: How does the emerging BIM concept relate to specs?
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          50th Annual CSI Show & Convention, Las Vegas
                   Comparing Information
• The Single-Package concept does not
  resolve the coordination issue
• Whenever more than one person works on
  one set of data errors can occur, simply
  because they can’t read each others’
  minds
          – e. g. one person builds an object in 3D CAD
            but doesn’t assign any properties
          – Or another person concerned with properties
            assigns the values to the wrong object
             BIM: How does the emerging BIM concept relate to specs?
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             50th Annual CSI Show & Convention, Las Vegas
                   Comparing Information
• Should we expect automatic coordination?
          – Without intervention by a human
          – Assumes a directionality to the information
            flow
          – Suggests CORRECTION not
            COORDINATION
          – Should the drawing information correct the
            spec information; or vice versa?


             BIM: How does the emerging BIM concept relate to specs?
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                         Lookup Functions
• Functionality that finds relevant
  information in other application
• Usefulness depends on stage of project
  and activity involved; e.g.
          – Prior to completion of documents, information
            may not be available
          – After completion, facility management people
            need to see project RECORD data, not
            contract documents
             BIM: How does the emerging BIM concept relate to specs?
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             50th Annual CSI Show & Convention, Las Vegas
                               The BIM Today
• To include the specs in a project BIM:
          – Use any appropriate method of sharing traditional
            spec files with all parties
          – Use the human-readable text files that are needed for
            contractual purposes
          – Use a commonly available format such as PDF, RTF,
            or OpenDocument format
          – File location, accessibility, and format compatibility is
            all that matters – not much of a problem
          – A standard file naming and locating protocol would
            help
              BIM: How does the emerging BIM concept relate to specs?
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              50th Annual CSI Show & Convention, Las Vegas
  Electronic Information Retrieval
• Identifying items is not enough
• The meaning must be understood on both
  sides of the communication
• For a machine to understand, either
          – Terminology must match, or
            • Requires agreed upon terminology
            • OmniClass is being developed to form a basis
          – The connections must be hard-wired
            • Limits usefulness to the particular application
             BIM: How does the emerging BIM concept relate to specs?
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             50th Annual CSI Show & Convention, Las Vegas
             2D/3D CAD & Word Processing
                                         Pointers to File Names Only

2D/3D CAD                                                                    Section XX XX XX
                                                       Not in spec
                                                                               PART 1 - GENERAL
             Graphical Object
                                                                               PART 2 - PRODUCTS
                                                                               Product Name
     Keynote or Label
                                                                                  Property (not in model)
                                                                Different
     Wall Type 1                                                section           Property (not in model)
     Wood Door in Metal Frame                                                     Property (not in model)
     Brick Veneer on Stud Backup                                                  Property (not in model)

                                                                                 Product Name
                                                                                  Property (not in model)
                                                         Could be 2
                                                         or 3 sections         PART 3 - EXECUTION

                 BIM: How does the emerging BIM concept relate to specs?
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           Meaningful Interoperability
• Only way to achieve meaningful
  interoperability is to:
          – Be able to identify individual items of
            information within a specification section
          – To the same level of detail as in the 3D model
• Word processing files will not do it
• Product properties as well as product
  names

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             50th Annual CSI Show & Convention, Las Vegas
           3D Model & DB-Based Spec
                              Model “drives” spec incompletely
3D Model                                                               Section XX XX XX
            Geometric or                                Not in spec
                                                                        PART 1 - GENERAL
            Graphical
            Object                                                      PART 2 - PRODUCTS
                                                                        Product Name
             Element Name                                                   Property (not in model)
                Component Name                                             Property
                  Property
                                                                            Property (not in model)
                       Property
                                                                           Property
                Component Name
                       Property                                           Product Name
                       Property                                             Property

                                                                        PART 3 - EXECUTION

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          Meaningful Interoperability
• Uses the principle of coordination rather
  than correction
• Provides information that each application
  MAY use automatically if it wishes
• Provides information that the user of the
  application may tell the application to
  accept if he decides it is correct and
  trustworthy

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           50th Annual CSI Show & Convention, Las Vegas
           Intermediate User Interface
            Coordinate, Don’t Correct                         Not In Spec

3D Model                                                                    Section XX XX XX

              Geometric or                                                  PART 1 - GENERAL
              Graphical
              Object                                         This Section   PART 2 - PRODUCTS
                                                                             Product Name
             Element Name                                                       Property (not in model)
                Component Name                                                  Property
                  Property
                                                                                Property (not in model)
                       Property
                                                                                Property (should be in
                Component Name                                                           model)
                       Property                                               Product Name (not
                       Property                                                       needed in
                                                          Another Section             model)
                                                                            PART 3 - EXECUTION

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             50th Annual CSI Show & Convention, Las Vegas
                                 Conclusions
• Is a project BIM the same thing as the
  project 3D geometric model?
• No.
• But within the BIM all data storage
  mechanisms should be able to
  interoperate



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          50th Annual CSI Show & Convention, Las Vegas
                                 Conclusions
• Should the project specs reside in the
  BIM?
• Yes
• By definition, specifications should be part
  of the BIM, because they need to be
  shared
• They don’t need to reside in the 3D
  geometric model
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          50th Annual CSI Show & Convention, Las Vegas
                                 Conclusions
• What can a specifier do with a 3D model?
• Retrieve information that helps identify
  what to specify
• If manual retrieval results in sufficient
  information, then electronic interoperability
  might be meaningful



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          50th Annual CSI Show & Convention, Las Vegas
                                 Conclusions
• Will use of BIM eliminate specs as we
  know them?
• No
• Not enough data in 3D model
• Never will be enough data in model
• Contract documents still required


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          50th Annual CSI Show & Convention, Las Vegas
                                 Conclusions
• Should we want the 3D model to drive the
  generation of the specs?
• Not really
• We need coordination more than
  correction
• Why assume the 3D model is more correct
  than the specs?


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          50th Annual CSI Show & Convention, Las Vegas
                                 Conclusions
• Is the increasing use of BIMs and 3D
  models likely to change specification
  practice?
• Undoubtedly
• Specifiers will need to know how to get
  information out of 3D models
• Eventually, electronic interoperability will
  do the retrieval automatically
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                              How to Proceed
• If your office is using a 3D geometric model
  software package
          – Be kind to the project manager who tells you
            “everything you need is in the model, go get it”
          – Learn about the printed outputs available, even if they
            are not normally generated for the 2D drawings
          – Learn about the built-in library of objects and the
            office standard library
          – Learn about the standard data fields offered for each
            object – try to get the relevant fields printed on your
            output reports
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              50th Annual CSI Show & Convention, Las Vegas
                              How to Proceed
• To promote development of further
  interoperability, share new knowledge with
  industry groups. In particular, the NBIMS project
  committee needs to know about:
          – The information flow between the 3D model and the
            specs
          – Points or interfaces where specification information is
            used by other applications
          – Disconnects -- where specification information could
            have been used by other applications but wasn’t
            seamlessly transferred
              BIM: How does the emerging BIM concept relate to specs?
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              50th Annual CSI Show & Convention, Las Vegas
                                               Finally
          When someone tells you they want
             the specs put into the BIM,
            you now know how to react

           Visit Building Systems Design, Inc.
                  at www.bsdsoftlink.com


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Description: Printable Aia Contract document sample