ET csi csinet. Search Options. Skip to main content Press Enter. Skip auxiliary navigation Press Enter. Skip main navigation Press Enter. Toggle navigation. National CAD Standard. Contact Us: M - F 8 a. NIBS is not bound by any provision of any purchase order, receipt, acceptance, confirmation, correspondence, or otherwise, unless NIBS specifically agrees to the provision in writing.
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Coast Guard. This Standard is an important first step in coordinating the efforts of the building design and construction industry. By classifying electronic building design CAD data consistently, communication among design and construction project teams can be streamlined, resulting in cost savings and greater efficiency in the design and construction process.
By adopting this Standard, you are making a wise choice for the future of your company or organization. Broad implementation of this Standard will significantly improve building design and construction service delivery to all clients.
Recognizing the evolving nature of computer technology, The National CAD Standard Project Committee is committed to the continuous growth and development of the Standard to keep pace with technology as it develops. The evolution of the Standard is dependent upon the participation of a broad cross-section of industry professionals.
This Standard is intended as a foundation for information sharing. Undoubtedly, it will not meet the needs of all users in all cases. To the extent possible, we urge you to classify your basic data according to the Standard, augmenting it only in those cases where your data cannot be sufficiently classified, organized or represented according to it.
In this way, you can ensure that a baseline of your construction data can be freely exchanged with others who adopt the Standard. Moreover, the task of educating others about your particular customized data-classification or organizational system for CAD can be minimized.
We would greatly appreciate feedback on any problems you encounter. Please use the form in Appendix H to record your comments. The Report describes how the constituent documents are related to one another, resolves discrepancies between them, and ensures the full integration of the previously independent parts. The constituent documents include:.
General Services Administration. The constituent documents have undergone a thorough review and comment process by the National CAD Standard Project Committee, the body formed by the Council to review and comment on the existing publications that comprise the Standard. This process ensures broad, democratic participation by all interested persons and organizations. It provides a framework for the coordination and integration of the previously independent parts.
And it establishes a mechanism for revising the constituent documents in the future to meet the needs of the broadest possible spectrum of users.
This Overview is intended to provide you with a brief history of the development of The National CAD Standard and to inform you of the process for its future evolution and development. The success of the Standard in achieving its intended purpose of streamlining and simplifying the exchange of building design and construction data will be measured by the number of participants in the building design and construction industry who choose to adopt it.
The decision to adopt the Standard will be made by thousands of individuals and organizations on the basis of whether or not the Standard adequately addresses this critical industry need. Implementation: The Role of Design Professionals As a building design and construction industry professional and as representative of a company, organization, or association, you are an integral part of this process. We urge you to adopt the Standard throughout your business enterprise, and to participate in its ongoing development to ensure a Standard that reflects the broadest possible spectrum of viewpoints from throughout the industry.
There are three principal advantages. First, a common language of data classification and organization for CAD will improve communication and data transfer among building design and construction teams, helping to streamline the building design and construction process. A single, nation-wide data classification and organization system for CAD will simplify the transfer of building data from the original building design CAD applications to facility management FM applications. A streamlined building design and construction process and a corresponding information model with a life span equal to the building it represents, results in a higher quality of service to both building owners and facility managers, who are the clients of the design and.
Beyond the immediately tangible benefits, a common language for the classification and organization of electronic data for CAD will create new opportunities for building design professionals to develop additional sources of revenue by offering a broader range of value-added services to building owners and facility managers.
It suggests the redefinition of the roles and the traditional relationships from independent, single project contracts to long-term, service-oriented relationships. A national CAD standard for classifying electronic building data facilitates the development of these new business models.
Implementation: The Role of Building Owners. Large-scale building owners, a group that includes corporations, government agencies, and educational or health care institutions, have a key role and interest in the full-scale implementation of The National CAD Standard.
By adopting the National CAD Standard, the burden of maintaining a proprietary standard is eliminated, and the maintenance of building information models is greatly streamlined and enhanced. Moreover, because large building owners represent a significant share of the building design and construction market, their adoption of the National CAD Standard is likely to have a singular impact on the entire building design and construction industry.
Templates could be included in applications to automatically create drawing file sheets in the National CAD Standard graphic format. Incorporation of such tools will become a vital feature of future CAD, Facilities Management, and other building design, construction and maintenance applications. Software developers who develop such tools will enjoy a significant competitive advantage in the marketplace.
For anyone faced with organizing or simply understanding the organization of electronic building design data for CAD produced in a multitude of formats, the value of organizing the data in a consistent format is immediately apparent.
The value of such office standards is limited to their realm of influence. For design firms, that realm may not extend beyond the firm itself, except in cases where design sub-consultants can be compelled to adopt it. However, the effort required to develop office standards is a now an unnecessary cost of doing business, and the duplication of effort required to develop multiple office standards is a gross and blatant inefficiency.
Computerization of the building design process was intended to result in increased efficiency and lower costs. The lack of a single, comprehensive, consistent data classification and organizational system for the exchange of electronic building design CAD data seriously hampers that goal. A National CAD Standard will benefit all participants in the building design and construction process, but particular benefits for particular players, are outlined below.
While the primary purpose is to establish a common basis for the classification and organization of electronic CAD data throughout the building design industry, the broader objective is to improve communication throughout the entire construction industry, including contractors, building product manufacturers, CAD software developers, and facility managers.
The U. National CAD Standard is only one of a number of ongoing efforts aimed at integrating electronic information. It addresses issues such as layer names, discipline designators, line weights, pen assignments, and the graphic organization of construction drawing sheets. It facilitates the exchange of data between current CAD software, but does not yet address the more complex issues of electronic data file format compatibility between software applications using object-oriented programming, which is the focus of IAI IFCs or Industry Foundation Classes.
NIBS has developed an XML standard to allow equipment manufacturers to deliver electronic operations and maintenance manuals that plug right in to computerized maintenance management systems CMMS. While these efforts began separately and are independent, they are not mutually exclusive.
All of the current efforts are intended to accomplish that same goal. One might ask why the current efforts are independent of each other? Two principal reasons are that the work is very complex and it makes sense to begin with what you know. Different elements of the problem can be addressed most effectively by different groups with each group focusing its unique expertise on the appropriate aspect of the challenge. As an example, the development of data classification and organizational standards can be done by an informed group of CAD users, independently of software programming considerations, and can be implemented across a broad array of software applications.
Meanwhile, the challenge of interoperability, that is, the ability to transfer electronic data files seamlessly from one software application to another, can be addressed by software application programmers, in close consultation with CAD users. Concurrently, a vision of an integrated information model can be developed in collaboration with software vendors, CAD users, building owners and facility managers, general practitioners and other building team members.
Many of the independent efforts have reached a level of maturity that makes it increasingly important to collaborate with related activities. This was the first effort in the building design industry to develop a data classification system for organizing electronic building data specifically addressing the names of CAD data files and the names of layers within CAD data files. UDS provides uniformity for graphical building design information in drawings.
CSI established a comprehensive long-range plan for the UDS to address all facets of construction drawing organization, including the naming of layers in CAD data files.
These modules, with amendments, were part of Version 1. Department of Defense has also played a significant role in the development of CAD standards.
In , Secretary of Defense Perry strongly promoted the adoption of private sector standards by DOD, and further promoted the involvement of DOD in the development of such standards. In , key building design and construction industry organizations with an interest in the development of a national CAD standard signed a Memorandum of Understanding that formed the basis of a cooperative, collaborative relationship for the development of The National CAD Standard. Coast Guard, and the U.
Each organization retains full ownership, including copyright, of their respective documents. Most importantly, the publishing signatories agreed to maintain, revise and support the continued publication of their documents in cooperation with the National CAD Standard Project Committee.
The Memorandum of Understanding is an agreement for cooperation and collaboration that is unprecedented in the building design and construction industry, and has no equal in the computer industry. The Facility Information Council: History, Mission, Governance The United States Congress authorized the National Institute of Building Sciences to assemble, store and disseminate technical data and other information directly related to its technological and regulatory responsibilities.
The Facility Information Council of NIBS fulfills a part of that responsibility by providing an industry-wide forum for the standardization and integration of facility information throughout the entire life cycle of buildings, from design, construction, and maintenance, through re-use or retirement.
The need for an integrated system for storing electronic building design and construction data has been recognized since the s, when the commercial use of computers in the construction industry first began.
During this period, several individuals and organizations published research papers and developed organizational plans for integrated computer systems for the building industry. The limitations of early computer systems, the rapidly evolving nature of computer technology and the rapid obsolescence of contemporaneous computer systems rendered these data-organization efforts impractical.
With its introduction in , the personal computer emerged as the platform of choice for business computing. The building design industry shifted rapidly from manual production to a computer-based process.
Today, nearly all design and documentation in the building construction industry is accomplished using CADD. Computer-aided design and drafting software applications have evolved to a point of maturity that now makes a single, coherent system for classification of building design and construction data possible. It is now incumbent on the industry to harness this computer technology to maintain national competence and assert U.
In , the name of the Council was changed to the Facility Information Council to more fully reflect its charter as well as to better align its mission with the strategic goals of NIBS. Membership on the Council is open to all individuals and organizations with an interest in and commitment to the Council's purposes. A complete roster of the membership of the Facility Information Council Board of Direction at the time of publication of Version 1.
Likewise, the major contributing organizations are committed to supporting the development of their constituent documents. With publication of Version 1. Immediately thereafter, the Facility Information Council re-opened membership on the Project Committee to all persons with interest in developing Version 2.
Beginning with the start if work on Version 3. The first three committees operated under the rules described in Appendix E. Succeeding committees will operate under new governance rules described in Appendix F. Members who attend project committee meetings do so at their own expense or at the expense of their sponsoring organizations.
To the maximum extent possible, the work of the project committee and its task teams is conducted via the Internet using list-serves and extranets. The only requirement for participation is that members be in possession of the latest version of the National CAD Standard, currently Version 3.
If you wish to participate, please visit the U. In conclusion and on behalf of the Council, we would like to thank all who have participated in the development of Versions 3. Their names are listed in Appendix D. This would not have been possible without industry-wide participation.
Many individuals and organizations have contributed countless hours toward development of the constituent publications and the establishment of a National CAD Standard.
The benefit of these efforts will be appreciated by many users. David A. Michael Tardif, Assoc. Michael A. Hayes, Ph. Washington, D. June Admin Title 1. Admin Current Version 2. Admin Intent 3. During construction, use of the NCS is intended to reduce time in finding and referencing information between owner, designer, consultants, product suppliers, and manufactures.
Admin Scope 4. Each organization shall determine their degree of conformance with the NCS. The agreement between owner and design professional or between design professional and consultant may specify degree of conformance required. Upon acceptance of registration application, agreement with the terms and conditions, and payment of the yearly registration fee, the publisher may state that their product is in full or partial conformance with the NCS.
Admin Assumptions 7. Such images may be viewed on a computer monitor or printed on a sheet of paper. Note: standards for three- dimensional computer models - produced by object-oriented programs - are not currently part of the NCS. Most projects will include several minor variations from the NCS. Provided these minor variations are listed as part of the Statement of Substantial Conformance, the project will then be considered in Substantial Conformance. Admin Consensus Standard 8. The only requirement for membership is that members own a current version of the NCS 3.
Reviewer Members commit to read and comment on all draft reports. All members are required to submit a ballot on the final report. To the maximum extent possible, the work of the project committee and its task teams is conducted via the Internet using listservs and extranets. Drawing: The Drawings are the graphic and pictorial portions of the documents showing the design, location and dimensions of the project, generally including plans, elevations, sections, details, schedules and diagrams.
Optional: Not required. If item is left out, documents will still be in substantial conformance with NCS. Recommended: Not required. Suggested method only. Required: Items to be followed if claiming substantial conformance with NCS. Plot file: An electronic computer file containing information necessary to print one drawing sheet formatted for output to a printing or plotting devices no longer stored in its native CAD file format.
Admin Copyright Use the NCS solely and exclusively for internal purposes within your organization. Transfer information, data, symbols and templates from the NCS to other documents in connection with preparing construction documents, so long as such transfer of data is not performed or used in a manner that is competitive with NIBS distribution of the NCS.
You may not, otherwise, copy, distribute, rent, lease, loan, disseminate, publish, sell or transfer any portion of the NCS. No part of this publication may be reproduced, either in whole or in part, or stored in a retrieval system, or reproduced by mechanical or electronic photocopying, recording, or other means now known or hereafter invented, without the express written permission of the publisher.
Civil Works Layer List CLG Field Codes Agent Responsible Field Code Restrictions Overview Virtually all vector-based CAD systems support the concept of layers. This function allows building design information to be organized in a systematic fashion, facilitates the visual display of the information on a computer screen, and allows the information to be efficiently converted to the conventional print media of drawings. Efficient use of layers can reduce document preparation time and improve document coordination.
Organizing data by layers allows a single CAD file to contain a wealth of information about a building or facility. By turning selected layers on or off, data can be created, reviewed and edited according to a hierarchy that simulates the physical organization of building systems, the relative position of building elements, or the sequence of construction.
The early success of the first edition and rapidly evolving technology resulted in the second edition being published in The second edition also included additional layer field codes for remodeling projects, added new discipline designations for interiors, telecommunications, and other disciplines, and improved the method of organizing drawing annotation. Army Corps of Engineers. In March , the U.
National CAD Standard. With publication of the U. NCS Version 2. No doubt some confusion will still arise between the U. NCS, Version 3. It was also carefully coordinated with that document, so that the two function as a whole. This arrangement allows users to select from a number of options for naming layers according to the level of detailed information desired. Layer names consist of distinct data fields separated from one another by dashes.
A detailed list of abbreviations, or field codes, is prescribed to define the content of layers. Most field codes are mnemonic English abbreviations of construction terminology that are easy to remember. The Discipline Designator and Major Group fields are mandatory. The Minor Group and Status fields are optional. The complete U. Before You Begin The U. NCS allows you to select from a number of format options for creating layer names.
It is recommended that you select the options that you wish to use for layer names on a given project, and then apply the resulting format consistently for all layer names on that project. Note that for conceptual conformance to ISO , Organization and Naming of Layers for CAD, the layer name format and length must be the same for all layers on a given project.
Discipline Designator, Level 1 A typical layer name showing the required data fields only. The Discipline Designator denotes the category of subject matter contained on the specified layer.
The Discipline Designator is a two-character field. The first character is the discipline character, Note that only the mandatory discipline character is shown, creating a Level 1 and the second character is an optional modifier.
The Discipline Designator is described in greater Discipline Designator. Discipline Designator, Level 2 The optional second character is used to further define the discipline character. As an example, the Level 2 Discipline Designators for Architectural are shown:.
A typical layer name showing the required data fields only. Designator Description New. Note that the mandatory Level 1 discipline character is supplemented by the optional A Architectural discipline modifier to create a Level 2 Discipline Designator. Major Group A typical layer name showing the The Major Group is a four-character field that identifies a major building system.
The prescribed required data fields only. Major Group field codes four-character abbreviations shown on the Layer List are logically The mandatory Major Group grouped with specific discipline designators. However, any Major Group may be combined with field is highlighted: any prescribed Discipline Designator, provided that the definition of the Major Group remains unchanged. A typical layer name showing two Minor Group optional Minor Group fields: This is an optional, four-character field to further define the Major Groups.
The prescribed Minor Group field codes four-character abbreviations shown on the Layer List are logically grouped with specific Major Groups.
However, any Minor Group may be used to modify any Major Group, provided that the definition of the Minor Group remains unchanged. Therefore, any reasonable combination of the prescribed Major and Minor Groups is permitted. Status Phase A typical layer name showing the location of the optional Status field: The status field is an optional single-character field that distinguishes the data contained on the layer according to the status of the work or the construction phase.
The Drawing View field codes are specialized codes for layers that are Layer Name Description New organized primarily by drawing type, rather than by major building system. It must consist of a single alphabetic character number: material cut by the view followed by a three-digit number between and The definition number: material beyond cut must be documented on the U. The numbers definitions of these prescribed field codes cannot be changed. Annotation Layer List Annotation Field Codes Annotation consists of text, dimensions, notes, sheet borders, detail The Layer Names shown below provide examples for the use of Minor references and other elements on CAD drawings that do not represent Group field codes for annotation.
These Minor Groups may be used to physical aspects of a building. See page CLG- annotation to be placed in a defined group of layers. Annotation Layer Names. W Civil Works The Civil Works discipline is defined as large-scale projects that usually WJ User-Defined cross property boundaries, such as highways, tunnels, dams, utility WK User-Defined distribution systems, water supply systems, and sewer systems. The selection of the Civil or Civil Works Discipline Designator is at the discretion of the user, but should generally be used to distinguish projects in terms of scale.
No layer names have been prescribed for this discipline. C Civil The Civil Discipline is defined as a project or a portion of a project that CD Civil Demolition is usually contained within a single property boundary.
Commentary: U. The complete document is in three parts: , , and Both standards specify the Element names of the data fields that make up a typical layer name, define the field names, specify Sector Scale which fields are mandatory required and which fields are optional, specify the number Work of characters in each field, and specify the order in which the fields are to appear.
By carefully choosing from among the available U. Adoption of the approach outlined herein could arguably Discipline Designator reduce the effort required to produce documents in conformance with ISO by eliminating the ISO-mandated task of prescribing valid field codes for each project. NCS Layer Format. Field Codes The U. Users of ISO must determine, for each project, the valid field codes for that project and their definitions. NCS offers users an opportunity to system definition file that must accompany the project data files.
In its simplest form, this comply with both U. By adhering to the guidelines in is nothing more than a tab-delimited text file. The prescriptive approach of the U.
NCS steps on the last page, the U. NCS relieves users of the task of developing and documenting field codes for every project. NCS can simplify the ISO- mandated task of preparing the layer naming Field Codes and Language system definition file that must accompany the project data files on every project.
By not prescribing field codes, ISO also allows the ISO layer format to be applied uniformly without regard to language. Citing our earlier example, English users might use the Definition File based on the U. In projects. CAD data sets that adhere to these rules are Sector defined by ISO as being in conceptual conformance with the ISO standard, an approved alternative to default conformance.
All modifications to the default layer format must be Scale applied uniformly throughout the project. NCS layer format differ from the specified field names in the ISO layer format, the definitions of the field names are conceptually Discipline Designator Agent Responsible the same with one important exception, discussed in the next paragraph below. The definition for Discipline Dwg. Major or Minor Group fields that define major building elements. The burden of professional liability borne by design professionals is generally less in other countries than it is in the U.
Perhaps for this reason, the issue of defining agent responsible more precisely with respect to professional liability did not arise when this field name was defined by ISO In the U. NCS definition for the field Discipline Designator was agreed-upon following considerable debate by the U.
In addition to the liability issues cited above, it was the consensus of the Project Committee that the ability to identify the data by subject matter throughout the life-cycle of a building facility was ultimately more important than the identity of the person or persons who originally created the data. This is not necessarily true. In most cases, the content of the fields Discipline Designator and Agent Responsible are one and the same, regardless of the definition.
For example, if the subject matter. Two conflicts that might arise when different elements of the same building system are allowable formats are shown: designed by more than one design professional.
Duplicate use of a field is prohibited. This ensures that data Presentation Annotation sets in conceptual conformance can be readily mapped to the ISO default layer format.
NCS users to restrict their use of certain U. NCS field codes. Two allowable formats for Drawing View field codes: The U. Example U. Note that ISO does not use dashes as field delimiters. The final field is Status, which corresponds to the ISO field of the same name, and is one 1 character in length.
Example 2. Required Use of Placeholders U. The information in this Commentary is summarized in the following steps for preparing Layers in which reserved field codes are not used must documents with layer names in conformance with the U.
NCS and in conceptual have placeholders in the reserved fields. While these guidelines are intended to aid U. NCS layer format were used. Figure 4 2. Determine whether the Discipline Designator will be one character Level 1 or two characters Level 2 in length. Determine whether a Minor Group is to be reserved for Drawing View field codes, and fix its position in the sequence of fields. Determine whether a Minor Group is to be reserved for Annotation field codes, and fix its position in the sequence of fields.
Note that only two Minor Groups are available. Of the three options described in 4, 5, and 6 above, only two can be exercised on a given project.
For layer names in which one or more fields are not required, use placeholders dashes or underscores to maintain consistent layer name length and the relative positions of fields Figure 4.
Prepare a layer naming system definition file in accordance with ISO that defines the selected layer format for the project. Uniform Drawing System U. All rights reserved, including World rights and Electronic rights.
No part of this publication may be reproduced without per- mission from the publisher, nor may any part of this publication be reproduced, stored in a retrieval system, or copied by mechanical photocopying, recording, or other means, known or hereafter invented, or by all means, methods, and processes known and hereafter invented, without permission of the publisher.
This was a monumental undertaking that required an enormous amount of personal time, energy, character, and commitment. CSI is indebted to the members of the U. The following is a list of the many groups and individuals involved in the development of the UDS. We hope that the list acknowledges everyone who contributed; however, we apologize if anyone may have been inadvertently omitted. We look forward to continued industry input and support as we continue to develop the Uniform Drawing System and the U.
Michael J. Ross G. In , CSI created a drawings-related subcommittee of the Technical Committee to address this issue. An electronic version was released in During the following few years, CSI extensively researched the availability of, and need for, graphic standards in the construction industry. It was determined that there were few standards relating to drawings. This system initially identified modules for the organization and presentation of drawing sets, sheets, schedules, and diagrams. Graphic standards for drafting conventions and color, and standard systems for keynotes, attributes, and CAD layering were also identified as necessary.
These organizations have since worked cooperatively in the development of several graphic standards, notably CAD layering. Overview UDS is composed of interrelated modules consisting of standards, guidelines, and other tools for the organization and presentation of drawing information used for the planning, design, construction, and operation of facilities. Figure IN. Facility and Project Life Cycles Facility: A physical structure or group A facility is a physical structure or group of structures, including site construction, serving one of structures, including site construction, or more purposes.
Buildings are types of facilities composed of partially or totally enclosed serving one or more purposes. Site construction includes changes to terrain, and systems such as transportation and utilities. All facilities go through cycles during their useful life, beginning with inception, including changes over time, and eventually ending in reuse or demolition, as illustrated in Figure IN. Project: A set of related activities taking place A project is a set of related activities taking place in, around, and in connection with a facility, and in, around, and in connection with may include planning and pre-design activities, design and construction documents, a facility.
Post-construction activities may include facilities management and operation and maintenance documents. Projects go through cycles, beginning with the identification of a need, development of a response to the need through programming and design, performance and physical implementation, facility commissioning and operation, and possible modification to meet new needs.
This cycle may be repeated numerous times throughout the life of a facility. Drawings: Graphic and textual information During the design process, information concerning a project is collected, analyzed, and recorded organized on a two-dimensional surface for for incorporation into the proposed facility.
Drawings allow users to document and share the purpose of conveying data about a graphical information for a project. A drawing is a place where information is cataloged, stored, specific portion of a project. This information is recorded as part of the drawings, and evolves as the project cycle runs its course and as drawing users change. Drawings can also evolve, be modified, and change over time. UDS allows the continuing use of drawings as the needs of the project change.
The need for information contained within drawings is different for each phase of a facility or project cycle. Often, information in one cycle is the basis for developing new information for the next cycle. Email: [email protected]. Compare Search Please select at least 2 keywords. United States National Cad Standard V6 Pdf Ensure that the details you add to the United States National Cad Standard V6 Pdf is up-to-date and correct Add the date to the sample with the Date feature Click on the Sign button and create a signature You can find 3 available choices; typing, drawing, or capturing one Re-check each and every area has been filled in correctly.
United States National Cad Standard V6 Pdf Free … About United States National Cad Standard V6 Pdf Free Download Voluntary adoption of the Standard across the industry will improve the efficiency of building design, construction, and management throughout the life-cycle of facilities Adoption will benefit architects, engineers, contractors, and building owners by establishing a common Collegelearners.
S National CAD Standard NCS and establishes standardized guidelines for organizing and presenting building design information It is used to organize and manage construction drawings for virtually any project and project delivery method Csiresources. S The layering standard outlined herein was derived from the American Institute of … Home.
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