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The Definitive 2018 Guide to BIM Classification Systems 2
The Definitive 2018 Guide to BIM Classification Systems 3
Why Do We Need BIM Classification?
In terms of project planning and cost estimation, it is crucial for a classification
system to be capable of identifying and accurately describing any model
element.
The elements in a BIM model can be described by a number of parameters,
such as:
• Function
• Location
• Material
• Structure
• Geometry, etc.
These parameters are used by Kreo to define the construction method,
sequence, and cost.
So, the desired classification system should allow Kreo to organise BIM
elements in several different ways at once. Clearly, we need to assign an activity
to each element to compose a work breakdown structure (WBS), which is
followed by Gantt chart generation.
On the other hand, we have to group elements differently for cost estimates and
it goes without saying that there should be an alignment with an actual cost
database.
Introduction
We have a problem in the construction industry.
That problem lies with the lack of a unified classification system. This isn’t news
to anyone and today, with the continued development of Building Information
Modeling (BIM), this problem has become more topical than ever.
Apart from reducing design time and costs, the use of BIM technology is
supposed to improve communication between the people involved. And this lack
of communication is where the real problem lies.
Furthermore, the areas of project planning and cost estimation are still
unexplored. The industry simply has no means for these processes.
Kreo is breaking new ground in this respect.
https://www.kreo.net/https://www.kreo.net/
The Definitive 2018 Guide to BIM Classification Systems 4
The Definitive 2018 Guide to BIM Classification Systems 5
What Do We Have at Our Disposal Today?
It seems a real issue now and, sooner or later, we will have to produce an
up-to-date classification system which will fully meet the needs of BIM. Or does
it already exist and perhaps we are missing the elephant in the room?
Let’s take a look at the key features of the existing classification systems:
UniClass OmniClass NRM1 UniFormat NRM2 MasterFormat
Country of Origin / Use UK USA UK USA UK USA
Year of Publication 2015 2006 - 2013 2012 2010 2012 2016
Updates Monthly updates No updates - - - Annualy Updates
Definition
A unified classification system
for all sectors of the UK construction
industry.
The equivalent of Uniclass in the U.S. and
Canada. Incorporates MasterFormat and
Uniformat.
A standard for classifying building specifications, cost
estimating and cost analysis in the U.S. and Canada.
A standard for organizing specifications
and other written information for commercial and
institutional building projects in the
U.S. and Canada.
Purpose
Used to annotate objects in a graphic or model. Classification codes can be added to many different things including catalogues
and whole complexes right down to individual products. With classification codes, added items
can be drawn into schedules and drawings with their codes and collected together to
carry out different types of analysis.
Places order of cost estimating and cost planning.
Sets a format for cost estimates
at the schematic design phase.
Places detailed measurement for
bill of quantities and work schedules.
Standardizing the presentation of such information improves
communication among all
parties involved in construction
projects.
https://www.kreo.net/https://www.kreo.net/
The Definitive 2018 Guide to BIM Classification Systems 6
The Definitive 2018 Guide to BIM Classification Systems 7
What Do We Have at Our Disposal Today?
UniClass OmniClass NRM1 UniFormat NRM2 MasterFormat
Country of Origin / Use UK USA UK USA UK USA
Method of arranging
information
Faceted: part-of relationships
Faceted: part-of relationships
Elemental: measurement and description is done by group elements; following the logic
arrangement for elemental cost planning defined in NRM1
Based on functional elements, or
parts of a facility characterized by their functions,
without regard to the materials and methods used to accomplish them
Work sectional: measurement
and description is divided into the
work sections defined in NRM2
“50 Divisions” - a standard
for organizing specifications in the
U.S. and Canada, which arranges
information most appropriately from
the viewpoint of identifying the
“results of work” required to provide
all or part of a facility
Use in KreoBIM element
identification (Ss + Pr combination)
- Elemental breakdown structure - Work breakdown structure -
Definitions
System is a collection of
components that go together to make an element or to
carry out a function. Products are used to construct a system.
For a pitched roof, the rafters,
lining, tiles, ceiling boards, insulation and ceiling finish
comprise a system.
Products are components or assemblies of
components intended for permanent incorporation into construction entities.
Products are the basic building blocks used for construction. A
product may be a single manufactured item, a
manufactured assembly consisting of many
parts or a manufactured operational stand-
alone system.
Group element – the main headings used to describe the facets of an
elemental cost plan. Element – a major part of a group element. A separate
cost target can be established for each element. Sub-element – a part of an
element. As with elements, a separate cost target can be established for each sub-element. Component – a measured
item that forms part of an element or a sub-element. The quantity of one or more items will be measured and the cost estimated to ascertain the cost
target for an element or a sub-element.
Element is a major component,
assembly, or construction
entity part which, in itself or in
combination with other parts, fulfills
a predominating function of the
construction entity. Designed element is an element for which
the work result(s) have been defined.
Bill of quantities (BQ) – a list of items giving
detailed identifying descriptions and firm quantities of
the work comprised in a contract.
Work breakdown structure (WBS)
– in the context of bill of quantities, is used to subdivide a building project into
meaningful elements or work packages.
Work result - a completed entity that exists after all required raw
materials, human or machine effort, and
processes have been provided to achieve a completed condition. Since facility owners ultimately desire a completed entity,
specifiers routinely specify contractual
requirements by work result and minimize
the specifying of details about how to achieve that result
to contractors.
https://www.kreo.net/https://www.kreo.net/
The Definitive 2018 Guide to BIM Classification Systems 8
The Definitive 2018 Guide to BIM Classification Systems 9
What Do We Have at Our Disposal Today?
UniClass OmniClass NRM1 UniFormat NRM2 MasterFormat
Country of Origin / Use UK USA UK USA UK USA
Classification Tables
11 tables in total with
149 Groups
854 Subgroups3856 Sections8219 Objects
15 tables in total with
166 Level 1 Titles2165 Level 2 Titles7952 Level 3 Titles6255 Level 4 Titles2634 Level 5 Titles440 Level 6 Titles
5 Level 7 Titles
15 Group elements62 Elements
180 Sub-elements750 Components
7 Level 1 Titles29 Level 2 Titles
113 Level 3 Titles491 Level 4 Titles
41 tabulated work sections
557 items of work to be measured
35 Level 1 Titles216 Level 2 Titles
1188 Level 3 Titles4964 Level 4 Titles2417 Level 5 Titles
Ss - Systems table:
18 Groups166 Subgroups538 Sections1368 Objects
Table 21 - Elements:
7 Level 1 Titles29 Level 2 Titles
113 Level 3 Titles492 Level 4 Titles
Corresponds with the OmniClass Table 21 - Elements with
7 Level 1 Titles29 Level 2 Titles
113 Level 3 Titles492 Level 4 Titles
Corresponds with the OmniClass Table 22 - Work
Results with
34 Level 1 Titles1236 Level 2 Titles3856 Level 3 Titles1659 Level 4 Titles
Pr - Products table:
15 Groups69 Subgroups513 Sections6370 Objects
Table 23 - Products:
15 Level 1 Titles238 Level 2 Titles
1255 Level 3 Titles2972 Level 4 Titles2174 Level 5 Titles239 Level 6 Titles
5 Level 7 Titles
https://www.kreo.net/https://www.kreo.net/
The Definitive 2018 Guide to BIM Classification Systems 10
The Definitive 2018 Guide to BIM Classification Systems 11
Quantitative Comparison ChartsQuantitative Comparison Charts
https://www.kreo.net/https://www.kreo.net/
The Definitive 2018 Guide to BIM Classification Systems 12
The Definitive 2018 Guide to BIM Classification Systems 13
Why Do We Choose UniClass for Kreo?
• Unified approach to classification - simple mapping between classification
tables
• Regular updates and revisions
• Flexibility: over 120 thousand meaningful «System» + «Product»
combinations
• Claims to be a global classification system
Which One Shall We Use?
No doubt, UniClass is the most effective classification system available today, it even claims to be global.
Although UniClass and OmniClass have the same framework (ISO 12006-
2:2015), UniClass has several advantages, such as:
• Unlike OmniClass, UniClass is being constantly revised and updated. As
a result, it remains up-to-date in every sense (up-to-date information,
increasing compatibility with BIM, etc.).
• Redundant and confusing information, such as the Work Results table, is
being removed. This makes it easier to use with BIM.
• UniClass tables have similar terminology, sequencing, grouping and
coding.
https://www.kreo.net/https://www.kreo.net/
BIM ELEMENT IN KREO
NRM2
code
NRM1code
UniclassSystem
Unicl
ass
Prod
uct
Assigned Activity
BoQSs
Pr NRM1
ClassifiedBIM element
Assigned Activity
NRM2
A specific material or component of an element
PurposeBIM element identification
A measured item that forms part of an element or a sub-element
PurposeCost EstimatingElement Breakdown Structure (EBS) composition
An item of work to be measured
PurposeBill of QuantitiesWork Breakdown Structure (WBS) composition
Ss Pr NRM1The collection of components that go together to carry out a function
PurposeBIM element identification
NRM2
The Definitive 2018 Guide to BIM Classification Systems 14
The Definitive 2018 Guide to BIM Classification Systems 15
How Does It Work in Kreo?
The New Rules of Measurement (NRM) are used for preparing cost estimates and work schedules in the UK. Together with NRM1 and NRM2, the UniClass System + Product combination gives Kreo exhaustive description of any BIM element.
Moreover, NRM are fully compliant with The Building Cost Information Service
(BCIS), the most comprehensive cost database in the UK. Both NRM and BCIS
are developed by the same institution - The Royal Institution of Chartered
Surveyors (RICS).
Instead of Conclusions
Ever since the idea was thought up, it has become clearer and clearer in the
industry that, in practice, BIM is not feasible without a flexible, universally
applicable classification system. Serving the interests of the construction
industry, Kreo suggests a practical solution to the issue.
Still, another question remains unanswered: how can everyone follow the same rules when working with BIM models?
This is a question that is too big for any one eBook to answer, though we will
say that only through collaboration can the potential of BIM models be truly
harnessed.
To learn more about how you can improve your planning processes through
improved team collaboration with Kreo, click the button below to book a
meeting with Kreo’s founder, Magomed Galaev.
BOOK TIME WITH MAGOMED
https://www.kreo.net/https://www.kreo.net/http://meetings.hubspot.com/mgalaevhttp://meetings.hubspot.com/mgalaev
The Definitive 2018 Guide to BIM Classification Systems 16
About Kreo
Kreo is an advanced BIM design collaboration and BIM construction solution.
It harnesses the power of Artificial Intelligence to transform the construction
project collaboration, quantity take-off, cost estimating, scheduling and bidding
processes.
It brings together all your BIM construction planning resources in a single,
cloud-based integrated platform that reduces friction, improves the
collaboration and productivity of your team. This gives all your stakeholders
a powerful tool to improve the quality of project planning and reduce bidding
costs.
For more information on how Kreo can help with your next project, visit the
website — kreo.net.
https://www.kreo.net/https://www.kreo.net/