UniClass 2015 is a consistent classification structure used in the construction industry. It has been created by NBS as a global technology platform.

It contains tables classifying items of any scale from a large facility such as a railway, down to products such as a CCTV camera in a railway station.

It’s an essential way of identifying and managing the vast amount of information that’s involved in a project, and it’s a requirement for BIM projects, as set by the BS EN ISO 19650 series of standards.

NBS Chorus, a cloud-based platform, is the only specification tool in the industry that natively supports Uniclass.


Industry Foundation Classes (IFC) is a standardised, digital description of the built asset industry. It is an open standard (ISO 16739-1:2018) and promotes vendor neutral, or agnostic usable capabilities.

At its core, buildingSMART enables the entire built asset industry to improve the sharing of information throughout the lifecycle of project or asset. By breaking down the silos of information, end users can better collaborate and cooperate regardless of which software application they are using. buildingSMART’s technical core is based around Industry Foundation Classes (IFC) which was ISO certified in 2013.


The OmniClass Construction Classification System, also known as OmniClass or OCCS, is a classification system used for the organising and retrieving of information for the construction industry. It is the North American equivalent of Uniclass.

It covers the full facility lifecycle from conception to demolition or reuse, and all types of construction in the built environment. It is useful for Building Information Modelling (BIM), organising reports and object libraries.

With CCS, you have a coherent system that can be used to structure information. The purpose of CCS is to ensure that digital data can be exchanged unambiguously between the construction's value chains, phases and software systems and thereby contribute to increasing the construction's productivity.

CCS provides a unique identity for each building component and can be applied to all building components in a building all the way from idea to operation, so all parties use the same concepts, can build on each other's information and can sort the information according to purpose.

Brick is an open-source effort to standardize semantic descriptions of the physical, logical and virtual assets in buildings and the relationships between them. Brick consists of an extensible dictionary of terms and concepts in and around buildings, a set of relationships for linking and composing concepts together, and a flexible data model permitting seamless integration of Brick with existing tools and databases. Through the use of powerful Semantic Web technology, Brick can describe the broad set of idiosyncratic and custom features, assets and subsystems found across the building stock in a consistent matter.


Building Information Modeling (BIM)

Building information modeling (BIM) is a process supported by various tools, technologies and contracts involving the generation and management of digital representations of physical and functional characteristics of places. Building information models (BIMs) are computer files (often but not always in proprietary formats and containing proprietary data) which can be extracted, exchanged or networked to support decision-making regarding a built asset. BIM software is used by individuals, businesses and government agencies who plan, designconstruct, operate and maintain buildings and diverse physical infrastructures, such as water, refuse, electricity, gas, communication utilities, roads, railways, bridges, ports and tunnels.

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