ACR-News
23 January 2017

BIM product data: industry bodies agree single process

Three leading construction industry bodies have acted to address increasing confusion over the process of standardising product information for use in Building Information Modelling (BIM).

BESA (the Building Engineering Services Association), CIBSE (the Chartered Institution of Building Services Engineers) and the CPA (Construction Products Association) have agreed on the respective roles of the ‘LEXiCON’ and ‘BIMHawk’ tools in developing standardised product data parameters and structures. This should resolve the apparent confusion over whether the two initiatives compete or complement each other.

CIBSE has been leading an industry consortium for the development of BIMHawk, a project to collect and structure product information in standardised Product Data Templates (PDTs). With the support of the BIM Task Group and UK BIM Alliance, the CPA has been developing LEXiCON to create, define and record parameter names in a uniform and standardised way and to make those parameters available to all those creating structured data, initially focusing on product data. 

A PDT allows manufacturers to demonstrate the features and describe the properties of a product using standard parameters in support of the design, construction, operation and maintenance of buildings. LEXiCON is a process for defining and publishing that information using a single source of terms so the organisations have agreed to work together.

By aligning with the LEXiCON methodology, CIBSE will ensure that PDTs can feed directly and seamlessly into the delivery process. The LEXiCON methodology provides the governance to ensure the properties defined are the correct ones, and these will then be aligned with the buildingSmart Data Dictionary, which is being developed by buildingSMART International in association with the International Standards Organisation (ISO).

In addition, CIBSE will become a ‘Senior Relevant Authority’ for LEXiCON to further enhance development of parameters for mechanical, electrical and plumbing product data. BESA, CIBSE and the Electrical Contractors’ Association (ECA) are already working together with many interested parties in the building services sector, and this agreement will further extend the level of co-ordination and collaboration across the sector.

David Frise of BESA said: “This is just what the industry has been waiting for. It is more than six months since the passing of the government’s deadline for BIM to be mandatory on public sector projects and we need to urgently drive forward the process for gathering and transmitting project relevant data. This collaboration is, therefore, just what we need to move the whole process on to the next level.”

CIBSE said that this agreement would “further extend co-ordination and collaboration across the sector”. It added that part of its ‘Relevant Authority’ work would be to test the approach with designers and suppliers “to ensure that what is being defined contributes to a useful, practical process, and that the PDTs deliver tangible benefits from digital information exchange”. 

The three industry bodies reinforced the message that being able to provide consistent and trustworthy product data, across the sector, had “undeniable advantages for manufacturers, contractors and designers as well as the sector’s clients”. 

Removing the need to translate information between websites, brochures and software models will only increase consistency, remove errors from the system and enable greater use of digital technologies.

Traditionally, product performance data has been requested using bespoke forms and web-based interfaces. Now, by using a structured approach, the data will remain valid for all applications until the product is updated.

A joint statement said: “As the generation of parameters is done in an organised and structured way and the parameters are all peer reviewed, we can be sure that the information asked for is of value to one or more members of the supply chain and that extraneous data is removed.”

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