the united states national cad standard® (ncs): · pdf fileus national cad standard ......
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The United States National CAD Standard® (NCS©):
Reference Standard
Connecting the NCS© & the NBIMS-USTM
bSa Symposium
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Introduction
Johnny Fortune BIM/IT Director, Bullock Tice Associates
Chair, US National CAD Standard® BIM Ad Hoc Task Team
US National CAD Standard ® Compliance Ad Hoc Task Team
NBIMS-US™ Planning Committee
@fortunejohnny
linkedin.com/in/fortunejohnny
Much of the building industry still requires and relies upon CAD based and sheet-centric project information delivery. The National BIM Standard-United States® (NBIMS-US™) doesn’t define graphical standards so the United States National CAD Standard® (NCS©) is an indispensable reference standard for the foreseeable future. As CAD and BIM are different workflows, it is necessary to better define and understand the relationship between the two standards.
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Standards Philosophy
Standards are like Referees:
• You need them to keep the game fair and honest.
• When they do a great job, you don’t notice them.
• You don’t want them deciding the game – no one buys a ticket to see the refs.
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NCS© Reference Standard
• If the NCS© is a CAD standard, why is it needed for BIM use?
• How is the NCS© related to NBIMS-USTM?
• How are the standards currently being used?
• What can we expect in future revisions?
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NCS© Reference Standard
Sheet-Centric project deliverable drivers:
• Permitting/Review Process
• Practitioner Liability Concerns
• Owner/Client requirements
• Established CAD/PDF/Paper delivery process
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NCS© Reference Standard
Standards are needed for both
information exchange AND graphical output
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Institute BOD
bSa BOD
bSa Sponsor Level BOD Members
bSa MOU BOD Members
bSa Contributor Level Members Education Institutions, Associations, Government and Corporations
bSa Elected Interest Group BOD Members
bSa Staff bSa BOD Executive
Committee
NIBS Council BOD Members
bSa Supporter Level Members Individuals and Students
NCS Project Committee
NCS Business Mgmt Group
NIBS-AIA-CSI
NCS Steering Committee PC Executive Body
NCS Task Teams 3 Standing Task Teams Subject Matter Experts
CLG TT UDSM TT
Symbols TT
Ad-Hoc Task Teams
Limited Scope Task Teams Subject Matter Experts
BIM TT Compliance TT Survey/Civil TT
NBIMS Project Committee
NBIMS Planning Committee
NBIMS Executive
Committee
NBIMS Sub- Committees
NBIMS Taskforce
NBIMS Workgroups
National Institute of Building Sciences – 2014
NBIMS-USTM & NCS© Relationship
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NBIMS-USTM references to NCS©
NCS© is an indispensable reference for NBIMS-US™.
• NBIMS-US™ 2 Reference Standards
– 2.9.5 Bibliography
• NBIMS-US™ 5 Practice Documents
– 5.2 MINIMUM BIM – DECEMBER 07, REVISED MAY 2012, 5.2.2 Normative references
– 5.2 MINIMUM BIM – DECEMBER 07, REVISED MAY 2012, 5.2.3 Terms, definitions, symbols, units and abbreviated terms, Graphical Input 5.2.3.3
• Annex A
– NBIMS-US PROJECT COMMITTEE RULES OF GOVERNANCE January 2011, Purpose 1.1
• Annex B
– 7.1 NATIONAL BIM STANDARD-UNITED STATES™ VERSION 1 – PART 1 OVERVIEW, PRINCIPLES, AND METHODOLOGIES – DECEMBER 2007, Other Key Reference
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NBIMS-USTM & NCS© Relationship
NBIMS-USTM V2 5.2 Minimum BIM
Graphical Information - Since all drawing output should at this point be National CAD Standard compliant, we are making this a requirement for a minimum BIM. This demonstrates that standards are being considered, when possible.
NCS© Introduction
The NCS© is identified as “One Element of a Larger Framework” and references NBIMS-USTM as another element.
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NCS©: What Applies to BIM? • Sheet information
• Set
• Identification
• Types
• Sequence
• Layout
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NCS©: What Applies to BIM?
• Layers (import or export)
• Schedules
• Terms and Abbreviations
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NCS©: What Applies to BIM?
• Line Widths
• Basic Annotation
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Missing Pieces?
CAD and BIM use require different workflows and methodology. The standards have been written specifically for each format so there are naturally gaps when attempting to integrate the two workflows.
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Implementation Challenges
• Not all NCS© content is applicable to BIM. – Some Symbols
– Some Line types
– Some naming/filing conventions
• Exported Data may not be fully compliant.
• Project stakeholders may not recognize various levels of compliance.
– Required vs. Optional or Recommended.
– Standards vs. Guidelines.
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Bridging the Gap
Current efforts to bridge the gap between the standards
• BIM Implementation Section balloted for NCS© V6.
• NCS© balloted as a reference standard for NBIMS-USTM V3.
• Introductory Relationship Statement developed for NBIMS-USTM V3.
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1.1 Introduction
1.2 References
1.3 Clarifications
1.4 Basic BIM Guidelines
1.5 Summary
NCS© BIM Implementation
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NCS© Reference Standard
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Next Steps
• Evaluate revisions to NCS© V6 and NBIMS-USTM V3
• NCS© BIM Ad Hoc Task Team to further develop the NCS© BIM Implementation Section.
• Get involved: more practitioners are needed for effective standards development.
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This presentation is protected by US and International Copyright laws.
Reproduction, distribution, display and use of the presentation without written
permission of the speaker is prohibited.
© National Institute of Building Sciences 2014
Copyright Materials
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Johnny Fortune BIM/IT Director, Bullock Tice Associates
Chair, US National CAD Standard® BIM Ad Hoc Task Team
US National CAD Standard ® Compliance Ad Hoc Task Team
NBIMS-US™ Planning Committee
@fortunejohnny
linkedin.com/in/fortunejohnny