The United States National CAD Standard® (NCS): Reference ...€¦ · NBIMS-USTM references to...

The United States National CAD Standard® (NCS©):

Reference Standard

Connecting the NCS© & the NBIMS-USTM

bSa Symposium

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

[email protected]

@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.

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.

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?


Sheet-Centric project deliverable drivers:

• Permitting/Review Process

• Practitioner Liability Concerns

• Owner/Client requirements

• Established CAD/PDF/Paper delivery process


Standards are needed for both

information exchange AND graphical output

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

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

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.

NCS©: What Applies to BIM? • Sheet information

• Set

• Identification

• Types

• Sequence

• Layout

NCS©: What Applies to BIM?

• Layers (import or export)

• Schedules

• Terms and Abbreviations

NCS©: What Applies to BIM?

• Line Widths

• Basic Annotation

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.

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.

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.

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.

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

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

[email protected]

@fortunejohnny

linkedin.com/in/fortunejohnny

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